mcs/class/Managed.Windows.Forms/System.Windows.Forms/XplatUIWin32.cs

   1 // Permission is hereby granted, free of charge, to any person obtaining
   2 // a copy of this software and associated documentation files (the
   3 // "Software"), to deal in the Software without restriction, including
   4 // without limitation the rights to use, copy, modify, merge, publish,
   5 // distribute, sublicense, and/or sell copies of the Software, and to
   6 // permit persons to whom the Software is furnished to do so, subject to
   7 // the following conditions:
   8 //
   9 // The above copyright notice and this permission notice shall be
  10 // included in all copies or substantial portions of the Software.
  11 //
  12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  19 //
  20 // Copyright (c) 2004-2006 Novell, Inc.
  21 //
  22 // Authors:
  23 //      Peter Bartok    pbartok@novell.com
  24 //
  25 //
  26
  27 // NOT COMPLETE
  28
  29 using System;
  30 using System.Drawing;
  31 using System.Drawing.Imaging;
  32 using System.ComponentModel;
  33 using System.Collections;
  34 using System.Diagnostics;
  35 using System.IO;
  36 using System.Runtime.InteropServices;
  37 using System.Text;
  38 using System.Threading;
  39
  40
  41 /// Win32 Version
  42 namespace System.Windows.Forms {
  43         internal class XplatUIWin32 : XplatUIDriver {
  44                 #region Local Variables
  45                 private static XplatUIWin32     instance;
  46                 private static int              ref_count;
  47                 private static IntPtr           FosterParent;
  48
  49                 internal static MouseButtons    mouse_state;
  50                 internal static Point           mouse_position;
  51                 internal static bool            grab_confined;
  52                 internal static IntPtr          grab_hwnd;
  53                 internal static Rectangle       grab_area;
  54                 internal static WndProc         wnd_proc;
  55                 internal static IntPtr          prev_mouse_hwnd;
  56                 internal static bool            caret_visible;
  57
  58                 internal static bool            themes_enabled;
  59                 private Hashtable               timer_list;
  60                 private static Queue            message_queue;
  61                 private static IntPtr           clip_magic = new IntPtr(27051977);
  62                 private static int              scroll_width;
  63                 private static int              scroll_height;
  64                 private static Hashtable        wm_nc_registered;
  65                 private static RECT             clipped_cursor_rect;
  66                 private Hashtable               registered_classes;
  67                 private Hwnd HwndCreating; // the Hwnd we are currently creating (see CreateWindow)
  68
  69                 #endregion      // Local Variables
  70
  71                 #region Private Structs
  72                 [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode)]
  73                 private struct WNDCLASS {
  74                         internal int            style;
  75                         internal WndProc        lpfnWndProc;
  76                         internal int            cbClsExtra;
  77                         internal int            cbWndExtra;
  78                         internal IntPtr         hInstance;
  79                         internal IntPtr         hIcon;
  80                         internal IntPtr         hCursor;
  81                         internal IntPtr         hbrBackground;
  82                         [MarshalAs(UnmanagedType.LPWStr)]
  83                         internal string         lpszMenuName;
  84                         [MarshalAs(UnmanagedType.LPWStr)]
  85                         internal string         lpszClassName;
  86                 }
  87
  88                 [StructLayout(LayoutKind.Sequential)]
  89                 internal struct RECT {
  90                         internal int            left;
  91                         internal int            top;
  92                         internal int            right;
  93                         internal int            bottom;
  94
  95                         public RECT (int left, int top, int right, int bottom)
  96                         {
  97                                 this.left = left;
  98                                 this.top = top;
  99                                 this.right = right;
 100                                 this.bottom = bottom;
 101                         }
 102
 103                         #region Instance Properties
 104                         public int Height { get { return bottom - top; } }
 105                         public int Width { get { return right - left; } }
 106                         public Size Size { get { return new Size (Width, Height); } }
 107                         public Point Location { get { return new Point (left, top); } }
 108                         #endregion
 109
 110                         #region Instance Methods
 111                         public Rectangle ToRectangle ()
 112                         {
 113                                 return Rectangle.FromLTRB (left, top, right, bottom);
 114                         }
 115
 116                         public static RECT FromRectangle (Rectangle rectangle)
 117                         {
 118                                 return new RECT (rectangle.Left, rectangle.Top, rectangle.Right, rectangle.Bottom);
 119                         }
 120
 121                         public override int GetHashCode ()
 122                         {
 123                                 return left ^ ((top << 13) | (top >> 0x13))
 124                                   ^ ((Width << 0x1a) | (Width >> 6))
 125                                   ^ ((Height << 7) | (Height >> 0x19));
 126                         }
 127
 128                         public override string ToString ()
 129                         {
 130                                 return String.Format("RECT left={0}, top={1}, right={2}, bottom={3}, width={4}, height={5}", left, top, right, bottom, right-left, bottom-top);
 131                         }
 132                         #endregion
 133
 134                         #region Operator overloads
 135                         public static implicit operator Rectangle (RECT rect)
 136                         {
 137                                 return Rectangle.FromLTRB (rect.left, rect.top, rect.right, rect.bottom);
 138                         }
 139
 140                         public static implicit operator RECT (Rectangle rect)
 141                         {
 142                                 return new RECT (rect.Left, rect.Top, rect.Right, rect.Bottom);
 143                         }
 144                         #endregion
 145                 }
 146
 147                 internal enum SPIAction {
 148                         SPI_GETACTIVEWINDOWTRACKING = 0x1000,
 149                         SPI_GETACTIVEWNDTRKTIMEOUT = 0x2002,
 150                         SPI_GETANIMATION = 0x0048,
 151                         SPI_GETCARETWIDTH = 0x2006,
 152                         SPI_GETCOMBOBOXANIMATION = 0x1004,
 153                         SPI_GETDRAGFULLWINDOWS  = 0x0026,
 154                         SPI_GETDROPSHADOW = 0x1024,
 155                         SPI_GETFONTSMOOTHING = 0x004A,
 156                         SPI_GETFONTSMOOTHINGCONTRAST = 0x200C,
 157                         SPI_GETFONTSMOOTHINGTYPE = 0x200A,
 158                         SPI_GETGRADIENTCAPTIONS = 0x1008,
 159                         SPI_GETHOTTRACKING = 0x100E,
 160                         SPI_GETICONTITLEWRAP = 0x0019,
 161                         SPI_GETKEYBOARDSPEED = 0x000A,
 162                         SPI_GETKEYBOARDDELAY    = 0x0016,
 163                         SPI_GETKEYBOARDCUES             = 0x100A,
 164                         SPI_GETKEYBOARDPREF = 0x0044,
 165                         SPI_GETLISTBOXSMOOTHSCROLLING = 0x1006,
 166                         SPI_GETMENUANIMATION = 0x1002,
 167                         SPI_GETMENUDROPALIGNMENT = 0x001B,
 168                         SPI_GETMENUFADE = 0x1012,
 169                         SPI_GETMENUSHOWDELAY = 0x006A,
 170                         SPI_GETMOUSESPEED = 0x0070,
 171                         SPI_GETSELECTIONFADE = 0x1014,
 172                         SPI_GETSNAPTODEFBUTTON = 0x005F,
 173                         SPI_GETTOOLTIPANIMATION = 0x1016,
 174                         SPI_GETWORKAREA = 0x0030,
 175                         SPI_GETMOUSEHOVERWIDTH  = 0x0062,
 176                         SPI_GETMOUSEHOVERHEIGHT = 0x0064,
 177                         SPI_GETMOUSEHOVERTIME   = 0x0066,
 178                         SPI_GETUIEFFECTS = 0x103E,
 179                         SPI_GETWHEELSCROLLLINES = 0x0068
 180                 }
 181
 182                 internal enum WindowPlacementFlags {
 183                         SW_HIDE                 = 0,
 184                         SW_SHOWNORMAL           = 1,
 185                         SW_NORMAL               = 1,
 186                         SW_SHOWMINIMIZED        = 2,
 187                         SW_SHOWMAXIMIZED        = 3,
 188                         SW_MAXIMIZE             = 3,
 189                         SW_SHOWNOACTIVATE       = 4,
 190                         SW_SHOW                 = 5,
 191                         SW_MINIMIZE             = 6,
 192                         SW_SHOWMINNOACTIVE      = 7,
 193                         SW_SHOWNA               = 8,
 194                         SW_RESTORE              = 9,
 195                         SW_SHOWDEFAULT          = 10,
 196                         SW_FORCEMINIMIZE        = 11,
 197                         SW_MAX                  = 11
 198                 }
 199
 200                 [StructLayout(LayoutKind.Sequential)]
 201                 private struct WINDOWPLACEMENT {
 202                         internal uint                   length;
 203                         internal uint                   flags;
 204                         internal WindowPlacementFlags   showCmd;
 205                         internal POINT                  ptMinPosition;
 206                         internal POINT                  ptMaxPosition;
 207                         internal RECT                   rcNormalPosition;
 208                 }
 209
 210                 [StructLayout(LayoutKind.Sequential)]
 211                 internal struct NCCALCSIZE_PARAMS {
 212                         internal RECT           rgrc1;
 213                         internal RECT           rgrc2;
 214                         internal RECT           rgrc3;
 215                         internal IntPtr         lppos;
 216                 }
 217
 218                 [Flags]
 219                 private enum TMEFlags {
 220                         TME_HOVER               = 0x00000001,
 221                         TME_LEAVE               = 0x00000002,
 222                         TME_NONCLIENT           = 0x00000010,
 223                         TME_QUERY               = unchecked((int)0x40000000),
 224                         TME_CANCEL              = unchecked((int)0x80000000)
 225                 }
 226
 227                 [StructLayout(LayoutKind.Sequential)]
 228                 private struct TRACKMOUSEEVENT {
 229                         internal int            size;
 230                         internal TMEFlags       dwFlags;
 231                         internal IntPtr         hWnd;
 232                         internal int            dwHoverTime;
 233                 }
 234
 235                 [StructLayout(LayoutKind.Sequential)]
 236                 private struct PAINTSTRUCT {
 237                         internal IntPtr         hdc;
 238                         internal int            fErase;
 239                         internal RECT           rcPaint;
 240                         internal int            fRestore;
 241                         internal int            fIncUpdate;
 242                         internal int            Reserved1;
 243                         internal int            Reserved2;
 244                         internal int            Reserved3;
 245                         internal int            Reserved4;
 246                         internal int            Reserved5;
 247                         internal int            Reserved6;
 248                         internal int            Reserved7;
 249                         internal int            Reserved8;
 250                 }
 251
 252                 [StructLayout(LayoutKind.Sequential)]
 253                 internal struct KEYBDINPUT {
 254                         internal short wVk;
 255                         internal short wScan;
 256                         internal Int32 dwFlags;
 257                         internal Int32 time;
 258                         internal UIntPtr dwExtraInfo;
 259                 }
 260
 261                 [StructLayout(LayoutKind.Sequential)]
 262                 internal struct MOUSEINPUT {
 263                         internal Int32 dx;
 264                         internal Int32 dy;
 265                         internal Int32 mouseData;
 266                         internal Int32 dwFlags;
 267                         internal Int32 time;
 268                         internal UIntPtr dwExtraInfo;
 269                 }
 270
 271                 [StructLayout(LayoutKind.Sequential)]
 272                 internal struct HARDWAREINPUT {
 273                         internal Int32 uMsg;
 274                         internal short wParamL;
 275                         internal short wParamH;
 276                 }
 277
 278                 [StructLayout (LayoutKind.Sequential)]
 279                 internal struct ICONINFO {
 280                         internal bool fIcon;
 281                         internal Int32 xHotspot;
 282                         internal Int32 yHotspot;
 283                         internal IntPtr hbmMask;
 284                         internal IntPtr hbmColor;
 285                 }
 286
 287                 [StructLayout(LayoutKind.Explicit)]
 288                 internal struct INPUT {
 289                         [FieldOffset(0)]
 290                         internal Int32 type;
 291
 292                         [FieldOffset(4)]
 293                         internal MOUSEINPUT mi;
 294
 295                         [FieldOffset(4)]
 296                         internal KEYBDINPUT ki;
 297
 298                         [FieldOffset(4)]
 299                         internal HARDWAREINPUT hi;
 300                 }
 301
 302                 [StructLayout (LayoutKind.Sequential)]
 303                 public struct ANIMATIONINFO {
 304                         internal uint cbSize;
 305                         internal int iMinAnimate;
 306                 }
 307
 308                 internal enum InputFlags {
 309                         KEYEVENTF_EXTENDEDKEY   = 0x0001,
 310                         KEYEVENTF_KEYUP                 = 0x0002,
 311                         KEYEVENTF_SCANCODE              = 0x0003,
 312                         KEYEVENTF_UNICODE               = 0x0004,
 313                 }
 314
 315                 internal enum ClassStyle {
 316                         CS_VREDRAW                      = 0x00000001,
 317                         CS_HREDRAW                      = 0x00000002,
 318                         CS_KEYCVTWINDOW                 = 0x00000004,
 319                         CS_DBLCLKS                      = 0x00000008,
 320                         CS_OWNDC                        = 0x00000020,
 321                         CS_CLASSDC                      = 0x00000040,
 322                         CS_PARENTDC                     = 0x00000080,
 323                         CS_NOKEYCVT                     = 0x00000100,
 324                         CS_NOCLOSE                      = 0x00000200,
 325                         CS_SAVEBITS                     = 0x00000800,
 326                         CS_BYTEALIGNCLIENT              = 0x00001000,
 327                         CS_BYTEALIGNWINDOW              = 0x00002000,
 328                         CS_GLOBALCLASS                  = 0x00004000,
 329                         CS_IME                          = 0x00010000,
 330                         // Windows XP+
 331                         CS_DROPSHADOW                   = 0x00020000
 332                 }
 333
 334                 internal enum SetWindowPosZOrder {
 335                         HWND_TOP                        = 0,
 336                         HWND_BOTTOM                     = 1,
 337                         HWND_TOPMOST                    = -1,
 338                         HWND_NOTOPMOST                  = -2
 339                 }
 340
 341                 [Flags]
 342                 internal enum SetWindowPosFlags {
 343                         SWP_ASYNCWINDOWPOS              = 0x4000,
 344                         SWP_DEFERERASE                  = 0x2000,
 345                         SWP_DRAWFRAME                   = 0x0020,
 346                         SWP_FRAMECHANGED                = 0x0020,
 347                         SWP_HIDEWINDOW                  = 0x0080,
 348                         SWP_NOACTIVATE                  = 0x0010,
 349                         SWP_NOCOPYBITS                  = 0x0100,
 350                         SWP_NOMOVE                      = 0x0002,
 351                         SWP_NOOWNERZORDER               = 0x0200,
 352                         SWP_NOREDRAW                    = 0x0008,
 353                         SWP_NOREPOSITION                = 0x0200,
 354                         SWP_NOENDSCHANGING              = 0x0400,
 355                         SWP_NOSIZE                      = 0x0001,
 356                         SWP_NOZORDER                    = 0x0004,
 357                         SWP_SHOWWINDOW                  = 0x0040
 358                 }
 359
 360                 internal enum GetSysColorIndex {
 361                         COLOR_SCROLLBAR                 = 0,
 362                         COLOR_BACKGROUND                = 1,
 363                         COLOR_ACTIVECAPTION             = 2,
 364                         COLOR_INACTIVECAPTION           = 3,
 365                         COLOR_MENU                      = 4,
 366                         COLOR_WINDOW                    = 5,
 367                         COLOR_WINDOWFRAME               = 6,
 368                         COLOR_MENUTEXT                  = 7,
 369                         COLOR_WINDOWTEXT                = 8,
 370                         COLOR_CAPTIONTEXT               = 9,
 371                         COLOR_ACTIVEBORDER              = 10,
 372                         COLOR_INACTIVEBORDER            = 11,
 373                         COLOR_APPWORKSPACE              = 12,
 374                         COLOR_HIGHLIGHT                 = 13,
 375                         COLOR_HIGHLIGHTTEXT             = 14,
 376                         COLOR_BTNFACE                   = 15,
 377                         COLOR_BTNSHADOW                 = 16,
 378                         COLOR_GRAYTEXT                  = 17,
 379                         COLOR_BTNTEXT                   = 18,
 380                         COLOR_INACTIVECAPTIONTEXT       = 19,
 381                         COLOR_BTNHIGHLIGHT              = 20,
 382                         COLOR_3DDKSHADOW                = 21,
 383                         COLOR_3DLIGHT                   = 22,
 384                         COLOR_INFOTEXT                  = 23,
 385                         COLOR_INFOBK                    = 24,
 386
 387                         COLOR_HOTLIGHT                  = 26,
 388                         COLOR_GRADIENTACTIVECAPTION     = 27,
 389                         COLOR_GRADIENTINACTIVECAPTION   = 28,
 390                         COLOR_MENUHIGHLIGHT             = 29,
 391                         COLOR_MENUBAR                   = 30,
 392
 393                         COLOR_DESKTOP                   = 1,
 394                         COLOR_3DFACE                    = 16,
 395                         COLOR_3DSHADOW                  = 16,
 396                         COLOR_3DHIGHLIGHT               = 20,
 397                         COLOR_3DHILIGHT                 = 20,
 398                         COLOR_BTNHILIGHT                = 20,
 399                         COLOR_MAXVALUE                  = 24,/* Maximum value */
 400                 }
 401
 402                 private enum LoadCursorType {
 403                         First                           = 32512,
 404                         IDC_ARROW                       = 32512,
 405                         IDC_IBEAM                       = 32513,
 406                         IDC_WAIT                        = 32514,
 407                         IDC_CROSS                       = 32515,
 408                         IDC_UPARROW                     = 32516,
 409                         IDC_SIZE                        = 32640,
 410                         IDC_ICON                        = 32641,
 411                         IDC_SIZENWSE                    = 32642,
 412                         IDC_SIZENESW                    = 32643,
 413                         IDC_SIZEWE                      = 32644,
 414                         IDC_SIZENS                      = 32645,
 415                         IDC_SIZEALL                     = 32646,
 416                         IDC_NO                          = 32648,
 417                         IDC_HAND                        = 32649,
 418                         IDC_APPSTARTING                 = 32650,
 419                         IDC_HELP                        = 32651,
 420                         Last                            = 32651
 421                 }
 422
 423                 private enum AncestorType {
 424                         GA_PARENT = 1,
 425                         GA_ROOT = 2,
 426                         GA_ROOTOWNER = 3
 427                 }
 428
 429                 [Flags]
 430                 private enum WindowLong {
 431                         GWL_WNDPROC                     = -4,
 432                         GWL_HINSTANCE                   = -6,
 433                         GWL_HWNDPARENT                  = -8,
 434                         GWL_STYLE                       = -16,
 435                         GWL_EXSTYLE                     = -20,
 436                         GWL_USERDATA                    = -21,
 437                         GWL_ID                          = -12
 438                 }
 439
 440                 [Flags]
 441                 private enum LogBrushStyle {
 442                         BS_SOLID                        = 0,
 443                         BS_NULL                         = 1,
 444                         BS_HATCHED                      = 2,
 445                         BS_PATTERN                      = 3,
 446                         BS_INDEXED                      = 4,
 447                         BS_DIBPATTERN                   = 5,
 448                         BS_DIBPATTERNPT                 = 6,
 449                         BS_PATTERN8X8                   = 7,
 450                         BS_DIBPATTERN8X8                = 8,
 451                         BS_MONOPATTERN                  = 9
 452                 }
 453
 454                 [Flags]
 455                 private enum LogBrushHatch {
 456                         HS_HORIZONTAL                   = 0,       /* ----- */
 457                         HS_VERTICAL                     = 1,       /* ||||| */
 458                         HS_FDIAGONAL                    = 2,       /* \\\\\ */
 459                         HS_BDIAGONAL                    = 3,       /* ///// */
 460                         HS_CROSS                        = 4,       /* +++++ */
 461                         HS_DIAGCROSS                    = 5,       /* xxxxx */
 462                 }
 463
 464                 internal struct COLORREF {
 465                         internal byte                   R;
 466                         internal byte                   G;
 467                         internal byte                   B;
 468                         internal byte                   A;
 469                 }
 470
 471                 [StructLayout(LayoutKind.Sequential)]
 472                 private struct LOGBRUSH {
 473                         internal LogBrushStyle          lbStyle;
 474                         internal COLORREF               lbColor;
 475                         internal LogBrushHatch          lbHatch;
 476                 }
 477
 478                 [StructLayout(LayoutKind.Sequential)]
 479                 internal struct TEXTMETRIC {
 480                         internal int                    tmHeight;
 481                         internal int                    tmAscent;
 482                         internal int                    tmDescent;
 483                         internal int                    tmInternalLeading;
 484                         internal int                    tmExternalLeading;
 485                         internal int                    tmAveCharWidth;
 486                         internal int                    tmMaxCharWidth;
 487                         internal int                    tmWeight;
 488                         internal int                    tmOverhang;
 489                         internal int                    tmDigitizedAspectX;
 490                         internal int                    tmDigitizedAspectY;
 491                         internal short                  tmFirstChar;
 492                         internal short                  tmLastChar;
 493                         internal short                  tmDefaultChar;
 494                         internal short                  tmBreakChar;
 495                         internal byte                   tmItalic;
 496                         internal byte                   tmUnderlined;
 497                         internal byte                   tmStruckOut;
 498                         internal byte                   tmPitchAndFamily;
 499                         internal byte                   tmCharSet;
 500                 }
 501
 502                 public enum TernaryRasterOperations : uint
 503                 {
 504                         SRCCOPY = 0x00CC0020,
 505                         SRCPAINT = 0x00EE0086,
 506                         SRCAND = 0x008800C6,
 507                         SRCINVERT = 0x00660046,
 508                         SRCERASE = 0x00440328,
 509                         NOTSRCCOPY = 0x00330008,
 510                         NOTSRCERASE = 0x001100A6,
 511                         MERGECOPY = 0x00C000CA,
 512                         MERGEPAINT = 0x00BB0226,
 513                         PATCOPY = 0x00F00021,
 514                         PATPAINT = 0x00FB0A09,
 515                         PATINVERT = 0x005A0049,
 516                         DSTINVERT = 0x00550009,
 517                         BLACKNESS = 0x00000042,
 518                         WHITENESS = 0x00FF0062
 519                 }
 520
 521                 [Flags]
 522                 private enum ScrollWindowExFlags {
 523                         SW_NONE                         = 0x0000,
 524                         SW_SCROLLCHILDREN               = 0x0001,
 525                         SW_INVALIDATE                   = 0x0002,
 526                         SW_ERASE                        = 0x0004,
 527                         SW_SMOOTHSCROLL                 = 0x0010
 528                 }
 529
 530                 internal enum SystemMetrics {
 531                         SM_CXSCREEN                     = 0,
 532                         SM_CYSCREEN                     = 1,
 533                         SM_CXVSCROLL                    = 2,
 534                         SM_CYHSCROLL                    = 3,
 535                         SM_CYCAPTION                    = 4,
 536                         SM_CXBORDER                     = 5,
 537                         SM_CYBORDER                     = 6,
 538                         SM_CXDLGFRAME                   = 7,
 539                         SM_CYDLGFRAME                   = 8,
 540                         SM_CYVTHUMB                     = 9,
 541                         SM_CXHTHUMB                     = 10,
 542                         SM_CXICON                       = 11,
 543                         SM_CYICON                       = 12,
 544                         SM_CXCURSOR                     = 13,
 545                         SM_CYCURSOR                     = 14,
 546                         SM_CYMENU                       = 15,
 547                         SM_CXFULLSCREEN                 = 16,
 548                         SM_CYFULLSCREEN                 = 17,
 549                         SM_CYKANJIWINDOW                = 18,
 550                         SM_MOUSEPRESENT                 = 19,
 551                         SM_CYVSCROLL                    = 20,
 552                         SM_CXHSCROLL                    = 21,
 553                         SM_DEBUG                        = 22,
 554                         SM_SWAPBUTTON                   = 23,
 555                         SM_RESERVED1                    = 24,
 556                         SM_RESERVED2                    = 25,
 557                         SM_RESERVED3                    = 26,
 558                         SM_RESERVED4                    = 27,
 559                         SM_CXMIN                        = 28,
 560                         SM_CYMIN                        = 29,
 561                         SM_CXSIZE                       = 30,
 562                         SM_CYSIZE                       = 31,
 563                         SM_CXFRAME                      = 32,
 564                         SM_CYFRAME                      = 33,
 565                         SM_CXMINTRACK                   = 34,
 566                         SM_CYMINTRACK                   = 35,
 567                         SM_CXDOUBLECLK                  = 36,
 568                         SM_CYDOUBLECLK                  = 37,
 569                         SM_CXICONSPACING                = 38,
 570                         SM_CYICONSPACING                = 39,
 571                         SM_MENUDROPALIGNMENT            = 40,
 572                         SM_PENWINDOWS                   = 41,
 573                         SM_DBCSENABLED                  = 42,
 574                         SM_CMOUSEBUTTONS                = 43,
 575                         SM_CXFIXEDFRAME                 = SM_CXDLGFRAME,
 576                         SM_CYFIXEDFRAME                 = SM_CYDLGFRAME,
 577                         SM_CXSIZEFRAME                  = SM_CXFRAME,
 578                         SM_CYSIZEFRAME                  = SM_CYFRAME,
 579                         SM_SECURE                       = 44,
 580                         SM_CXEDGE                       = 45,
 581                         SM_CYEDGE                       = 46,
 582                         SM_CXMINSPACING                 = 47,
 583                         SM_CYMINSPACING                 = 48,
 584                         SM_CXSMICON                     = 49,
 585                         SM_CYSMICON                     = 50,
 586                         SM_CYSMCAPTION                  = 51,
 587                         SM_CXSMSIZE                     = 52,
 588                         SM_CYSMSIZE                     = 53,
 589                         SM_CXMENUSIZE                   = 54,
 590                         SM_CYMENUSIZE                   = 55,
 591                         SM_ARRANGE                      = 56,
 592                         SM_CXMINIMIZED                  = 57,
 593                         SM_CYMINIMIZED                  = 58,
 594                         SM_CXMAXTRACK                   = 59,
 595                         SM_CYMAXTRACK                   = 60,
 596                         SM_CXMAXIMIZED                  = 61,
 597                         SM_CYMAXIMIZED                  = 62,
 598                         SM_NETWORK                      = 63,
 599                         SM_CLEANBOOT                    = 67,
 600                         SM_CXDRAG                       = 68,
 601                         SM_CYDRAG                       = 69,
 602                         SM_SHOWSOUNDS                   = 70,
 603                         SM_CXMENUCHECK                  = 71,
 604                         SM_CYMENUCHECK                  = 72,
 605                         SM_SLOWMACHINE                  = 73,
 606                         SM_MIDEASTENABLED               = 74,
 607                         SM_MOUSEWHEELPRESENT            = 75,
 608                         SM_XVIRTUALSCREEN               = 76,
 609                         SM_YVIRTUALSCREEN               = 77,
 610                         SM_CXVIRTUALSCREEN              = 78,
 611                         SM_CYVIRTUALSCREEN              = 79,
 612                         SM_CMONITORS                    = 80,
 613                         SM_SAMEDISPLAYFORMAT            = 81,
 614                         SM_IMMENABLED                   = 82,
 615                         SM_CXFOCUSBORDER                = 83,
 616                         SM_CYFOCUSBORDER                = 84,
 617                         SM_TABLETPC                     = 86,
 618                         SM_MEDIACENTER                  = 87,
 619                         SM_CMETRICS                     = 88
 620                 }
 621
 622                 // We'll only support _WIN32_IE < 0x0500 for now
 623                 internal enum NotifyIconMessage {
 624                         NIM_ADD                         = 0x00000000,
 625                         NIM_MODIFY                      = 0x00000001,
 626                         NIM_DELETE                      = 0x00000002,
 627                 }
 628
 629                 [Flags]
 630                 internal enum NotifyIconFlags {
 631                         NIF_MESSAGE                     = 0x00000001,
 632                         NIF_ICON                        = 0x00000002,
 633                         NIF_TIP                         = 0x00000004,
 634                         NIF_STATE                       = 0x00000008,
 635                         NIF_INFO                        = 0x00000010
 636                 }
 637
 638                 [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode)]
 639                 internal struct NOTIFYICONDATA {
 640                         internal uint                           cbSize;
 641                         internal IntPtr                         hWnd;
 642                         internal uint                           uID;
 643                         internal NotifyIconFlags        uFlags;
 644                         internal uint                           uCallbackMessage;
 645                         internal IntPtr                         hIcon;
 646                         [MarshalAs(UnmanagedType.ByValTStr, SizeConst=128)]
 647                         internal string                         szTip;
 648                         internal int                            dwState;
 649                         internal int                            dwStateMask;
 650                         [MarshalAs(UnmanagedType.ByValTStr, SizeConst=256)]
 651                         internal string                         szInfo;
 652                         internal int                            uTimeoutOrVersion;
 653                         [MarshalAs(UnmanagedType.ByValTStr, SizeConst=64)]
 654                         internal string                         szInfoTitle;
 655 #if NET_2_0
 656                         internal ToolTipIcon            dwInfoFlags;
 657 #else
 658                         internal int                            dwInfoFlags;
 659 #endif
 660                 }
 661
 662                 [Flags]
 663                 internal enum DCExFlags {
 664                         DCX_WINDOW                      = 0x00000001,
 665                         DCX_CACHE                       = 0x00000002,
 666                         DCX_NORESETATTRS                = 0x00000004,
 667                         DCX_CLIPCHILDREN                = 0x00000008,
 668                         DCX_CLIPSIBLINGS                = 0x00000010,
 669                         DCX_PARENTCLIP                  = 0x00000020,
 670                         DCX_EXCLUDERGN                  = 0x00000040,
 671                         DCX_INTERSECTRGN                = 0x00000080,
 672                         DCX_EXCLUDEUPDATE               = 0x00000100,
 673                         DCX_INTERSECTUPDATE             = 0x00000200,
 674                         DCX_LOCKWINDOWUPDATE            = 0x00000400,
 675                         DCX_USESTYLE                    = 0x00010000,
 676                         DCX_VALIDATE                    = 0x00200000
 677                 }
 678
 679                 [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode)]
 680                 internal struct CLIENTCREATESTRUCT {
 681                         internal IntPtr                 hWindowMenu;
 682                         internal uint                   idFirstChild;
 683                 }
 684
 685                 private enum ClassLong : int {
 686                         GCL_MENUNAME                    = -8,
 687                         GCL_HBRBACKGROUND               = -10,
 688                         GCL_HCURSOR                     = -12,
 689                         GCL_HICON                       = -14,
 690                         GCL_HMODULE                     = -16,
 691                         GCL_CBWNDEXTRA                  = -18,
 692                         GCL_CBCLSEXTRA                  = -20,
 693                         GCL_WNDPROC                     = -24,
 694                         GCL_STYLE                       = -26,
 695                         GCW_ATOM                        = -32,
 696                         GCL_HICONSM                     = -34
 697                 }
 698
 699                 [Flags]
 700                 internal enum GAllocFlags : uint {
 701                         GMEM_FIXED                      = 0x0000,
 702                         GMEM_MOVEABLE                   = 0x0002,
 703                         GMEM_NOCOMPACT                  = 0x0010,
 704                         GMEM_NODISCARD                  = 0x0020,
 705                         GMEM_ZEROINIT                   = 0x0040,
 706                         GMEM_MODIFY                     = 0x0080,
 707                         GMEM_DISCARDABLE                = 0x0100,
 708                         GMEM_NOT_BANKED                 = 0x1000,
 709                         GMEM_SHARE                      = 0x2000,
 710                         GMEM_DDESHARE                   = 0x2000,
 711                         GMEM_NOTIFY                     = 0x4000,
 712                         GMEM_LOWER                      = GMEM_NOT_BANKED,
 713                         GMEM_VALID_FLAGS                = 0x7F72,
 714                         GMEM_INVALID_HANDLE             = 0x8000,
 715                         GHND                            = (GMEM_MOVEABLE | GMEM_ZEROINIT),
 716                         GPTR                            = (GMEM_FIXED | GMEM_ZEROINIT)
 717                 }
 718
 719                 internal enum ROP2DrawMode : int {
 720                         R2_BLACK                        = 1,
 721                         R2_NOTMERGEPEN                  = 2,
 722                         R2_MASKNOTPEN                   = 3,
 723                         R2_NOTCOPYPEN                   = 4,
 724                         R2_MASKPENNOT                   = 5,
 725                         R2_NOT                          = 6,
 726                         R2_XORPEN                       = 7,
 727                         R2_NOTMASKPEN                   = 8,
 728                         R2_MASKPEN                      = 9,
 729                         R2_NOTXORPEN                    = 10,
 730                         R2_NOP                          = 11,
 731                         R2_MERGENOTPEN                  = 12,
 732                         R2_COPYPEN                      = 13,
 733                         R2_MERGEPENNOT                  = 14,
 734                         R2_MERGEPEN                     = 15,
 735                         R2_WHITE                        = 16,
 736                         R2_LAST                         = 16
 737                 }
 738
 739                 internal enum PenStyle : int {
 740                         PS_SOLID                        = 0,
 741                         PS_DASH                         = 1,
 742                         PS_DOT                          = 2,
 743                         PS_DASHDOT                      = 3,
 744                         PS_DASHDOTDOT                   = 4,
 745                         PS_NULL                         = 5,
 746                         PS_INSIDEFRAME                  = 6,
 747                         PS_USERSTYLE                    = 7,
 748                         PS_ALTERNATE                    = 8
 749                 }
 750
 751                 internal enum PatBltRop : int {
 752                         PATCOPY   = 0xf00021,
 753                         PATINVERT = 0x5a0049,
 754                         DSTINVERT = 0x550009,
 755                         BLACKNESS = 0x000042,
 756                         WHITENESS = 0xff0062,
 757                 }
 758
 759                 internal enum StockObject : int {
 760                         WHITE_BRUSH                     = 0,
 761                         LTGRAY_BRUSH                    = 1,
 762                         GRAY_BRUSH                      = 2,
 763                         DKGRAY_BRUSH                    = 3,
 764                         BLACK_BRUSH                     = 4,
 765                         NULL_BRUSH                      = 5,
 766                         HOLLOW_BRUSH                    = NULL_BRUSH,
 767                         WHITE_PEN                       = 6,
 768                         BLACK_PEN                       = 7,
 769                         NULL_PEN                        = 8,
 770                         OEM_FIXED_FONT                  = 10,
 771                         ANSI_FIXED_FONT                 = 11,
 772                         ANSI_VAR_FONT                   = 12,
 773                         SYSTEM_FONT                     = 13,
 774                         DEVICE_DEFAULT_FONT             = 14,
 775                         DEFAULT_PALETTE                 = 15,
 776                         SYSTEM_FIXED_FONT               = 16
 777                 }
 778
 779                 internal enum HatchStyle : int {
 780                         HS_HORIZONTAL                   = 0,
 781                         HS_VERTICAL                     = 1,
 782                         HS_FDIAGONAL                    = 2,
 783                         HS_BDIAGONAL                    = 3,
 784                         HS_CROSS                        = 4,
 785                         HS_DIAGCROSS                    = 5
 786                 }
 787
 788                 [Flags]
 789                 internal enum SndFlags : int {
 790                         SND_SYNC                        = 0x0000,
 791                         SND_ASYNC                       = 0x0001,
 792                         SND_NODEFAULT                   = 0x0002,
 793                         SND_MEMORY                      = 0x0004,
 794                         SND_LOOP                        = 0x0008,
 795                         SND_NOSTOP                      = 0x0010,
 796                         SND_NOWAIT                      = 0x00002000,
 797                         SND_ALIAS                       = 0x00010000,
 798                         SND_ALIAS_ID                    = 0x00110000,
 799                         SND_FILENAME                    = 0x00020000,
 800                         SND_RESOURCE                    = 0x00040004,
 801                         SND_PURGE                       = 0x0040,
 802                         SND_APPLICATION                 = 0x0080,
 803                 }
 804
 805                 [Flags]
 806                 internal enum LayeredWindowAttributes : int {
 807                         LWA_COLORKEY            = 0x1,
 808                         LWA_ALPHA                       = 0x2,
 809                 }
 810
 811                 public enum ACLineStatus : byte {
 812                         Offline = 0,
 813                         Online = 1,
 814                         Unknown = 255
 815                 }
 816
 817                 public enum BatteryFlag : byte {
 818                         High = 1,
 819                         Low = 2,
 820                         Critical = 4,
 821                         Charging = 8,
 822                         NoSystemBattery = 128,
 823                         Unknown = 255
 824                 }
 825
 826                 [StructLayout (LayoutKind.Sequential)]
 827                 public class SYSTEMPOWERSTATUS {
 828                         public ACLineStatus _ACLineStatus;
 829                         public BatteryFlag _BatteryFlag;
 830                         public Byte _BatteryLifePercent;
 831                         public Byte _Reserved1;
 832                         public Int32 _BatteryLifeTime;
 833                         public Int32 _BatteryFullLifeTime;
 834                 }
 835                 #endregion
 836
 837                 #region Constructor & Destructor
 838                 private XplatUIWin32() {
 839                         // Handle singleton stuff first
 840                         ref_count=0;
 841
 842                         mouse_state = MouseButtons.None;
 843                         mouse_position = Point.Empty;
 844
 845                         grab_confined = false;
 846                         grab_area = Rectangle.Empty;
 847
 848                         message_queue = new Queue();
 849
 850                         themes_enabled = false;
 851
 852                         wnd_proc = new WndProc(InternalWndProc);
 853
 854                         FosterParent=Win32CreateWindow(WindowExStyles.WS_EX_TOOLWINDOW, "static", "Foster Parent Window", WindowStyles.WS_OVERLAPPEDWINDOW, 0, 0, 0, 0, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
 855
 856                         if (FosterParent==IntPtr.Zero) {
 857                                 Win32MessageBox(IntPtr.Zero, "Could not create foster window, win32 error " + Win32GetLastError().ToString(), "Oops", 0);
 858                         }
 859
 860                         scroll_height = Win32GetSystemMetrics(SystemMetrics.SM_CYHSCROLL);
 861                         scroll_width = Win32GetSystemMetrics(SystemMetrics.SM_CXVSCROLL);
 862
 863                         timer_list = new Hashtable ();
 864                         registered_classes = new Hashtable ();
 865                 }
 866                 #endregion      // Constructor & Destructor
 867
 868                 #region Private Support Methods
 869
 870                 private string RegisterWindowClass (int classStyle)
 871                 {
 872                         string class_name;
 873
 874                         lock (registered_classes) {
 875                                 class_name = (string)registered_classes[classStyle];
 876
 877                                 if (class_name != null)
 878                                         return class_name;
 879
 880                                 class_name = string.Format ("Mono.WinForms.{0}.{1}", System.Threading.Thread.GetDomainID ().ToString (), classStyle);
 881
 882                                 WNDCLASS wndClass;
 883
 884                                 wndClass.style = classStyle;
 885                                 wndClass.lpfnWndProc = wnd_proc;
 886                                 wndClass.cbClsExtra = 0;
 887                                 wndClass.cbWndExtra = 0;
 888                                 wndClass.hbrBackground = (IntPtr)(GetSysColorIndex.COLOR_WINDOW + 1);
 889                                 wndClass.hCursor = Win32LoadCursor (IntPtr.Zero, LoadCursorType.IDC_ARROW);
 890                                 wndClass.hIcon = IntPtr.Zero;
 891                                 wndClass.hInstance = IntPtr.Zero;
 892                                 wndClass.lpszClassName = class_name;
 893                                 wndClass.lpszMenuName = "";
 894
 895                                 bool result = Win32RegisterClass (ref wndClass);
 896
 897                                 if (result == false)
 898                                         Win32MessageBox (IntPtr.Zero, "Could not register the window class, win32 error " + Win32GetLastError ().ToString (), "Oops", 0);
 899
 900                                 registered_classes[classStyle] = class_name;
 901                         }
 902
 903                         return class_name;
 904                 }
 905
 906                 private static bool RetrieveMessage(ref MSG msg) {
 907                         MSG     message;
 908
 909                         if (message_queue.Count == 0) {
 910                                 return false;
 911                         }
 912
 913                         message = (MSG)message_queue.Dequeue();
 914                         msg = message;
 915
 916                         return true;
 917                 }
 918
 919                 private static bool StoreMessage(ref MSG msg) {
 920                         MSG message = new MSG();
 921
 922                         message = msg;
 923                         message_queue.Enqueue(message);
 924
 925                         return true;
 926                 }
 927
 928                 internal static String AnsiToString(IntPtr ansi_data) {
 929                         return (string)Marshal.PtrToStringAnsi(ansi_data);
 930                 }
 931
 932                 internal static String UnicodeToString(IntPtr unicode_data) {
 933                         return (string)Marshal.PtrToStringUni(unicode_data);
 934                 }
 935
 936                 internal static Image DIBtoImage(IntPtr dib_data) {
 937                         BITMAPINFOHEADER        bmi;
 938                         int                     ncolors;
 939                         int                     imagesize;
 940                         //int                   palettesize;
 941                         Bitmap                  bmp;
 942                         BitmapData              bits;
 943                         ColorPalette            pal;
 944                         int[]                   palette;
 945                         byte[]                  imagebits;
 946                         int                     bytesPerLine;
 947
 948                         bmi = (BITMAPINFOHEADER)Marshal.PtrToStructure(dib_data, typeof(BITMAPINFOHEADER));
 949
 950                         ncolors = (int)bmi.biClrUsed;
 951                         if (ncolors == 0) {
 952                                 if (bmi.biBitCount < 24) {
 953                                         ncolors = (int)(1 << bmi.biBitCount);
 954                                 }
 955                         }
 956                         //palettesize = ncolors * 4;
 957
 958                         imagesize = (int)bmi.biSizeImage;
 959                         if (imagesize == 0) {
 960                                 imagesize = (int)(((((bmi.biWidth * bmi.biBitCount) + 31) & ~31) >> 3) * bmi.biHeight);
 961                         }
 962
 963                         switch(bmi.biBitCount) {
 964                                 case 1: {       // Monochrome
 965                                         bmp = new Bitmap(bmi.biWidth, bmi.biHeight, PixelFormat.Format1bppIndexed);
 966                                         palette = new int[2];
 967                                         break;
 968                                 }
 969
 970                                 case 4: {       // 4bpp
 971                                         bmp = new Bitmap(bmi.biWidth, bmi.biHeight, PixelFormat.Format4bppIndexed);
 972                                         palette = new int[16];
 973                                         break;
 974                                 }
 975
 976                                 case 8: {       // 8bpp
 977                                         bmp = new Bitmap(bmi.biWidth, bmi.biHeight, PixelFormat.Format8bppIndexed);
 978                                         palette = new int[256];
 979                                         break;
 980                                 }
 981
 982                                 case 24:
 983                                 case 32: {      // 32bpp
 984                                         bmp = new Bitmap(bmi.biWidth, bmi.biHeight, PixelFormat.Format32bppArgb);
 985                                         palette = new int[0];
 986                                         break;
 987                                 }
 988
 989                                 default: {
 990                                         throw new Exception("Unexpected number of bits:" + bmi.biBitCount.ToString());
 991                                 }
 992                         }
 993
 994                         if (bmi.biBitCount < 24) {
 995                                 pal = bmp.Palette;                              // Managed palette
 996                                 Marshal.Copy((IntPtr)((int)dib_data + Marshal.SizeOf(typeof(BITMAPINFOHEADER))), palette, 0, palette.Length);
 997
 998                                 for (int i = 0; i < ncolors; i++) {
 999                                         pal.Entries[i] = Color.FromArgb(palette[i] | unchecked((int)0xff000000));
1000                                 }
1001                                 bmp.Palette = pal;
1002                         }
1003
1004                         bytesPerLine = (int)((((bmi.biWidth * bmi.biBitCount) + 31) & ~31) >> 3);
1005                         bits = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.WriteOnly, bmp.PixelFormat);
1006
1007                         imagebits = new byte[bytesPerLine];
1008
1009                         for (int y = 0; y < bmi.biHeight; y++) {
1010                                 // Copy from source to managed
1011                                 Marshal.Copy((IntPtr)((int)dib_data + Marshal.SizeOf(typeof(BITMAPINFOHEADER)) + palette.Length * 4 + bytesPerLine * y), imagebits, 0, bytesPerLine);
1012
1013                                 // Copy from managed to dest
1014                                 Marshal.Copy(imagebits, 0, (IntPtr)((int)bits.Scan0 + bits.Stride * (bmi.biHeight - 1 - y)), imagebits.Length);
1015                         }
1016
1017                         bmp.UnlockBits(bits);
1018
1019                         return bmp;
1020                 }
1021
1022                 internal static byte[] ImageToDIB(Image image) {
1023                         MemoryStream    ms;
1024                         byte[]          buffer;
1025                         byte[]          retbuf;
1026
1027                         ms = new MemoryStream();
1028                         image.Save(ms, ImageFormat.Bmp);
1029                         buffer = ms.GetBuffer();
1030
1031                         // Filter out the file header
1032                         retbuf = new byte[buffer.Length];
1033                         Array.Copy(buffer, 14, retbuf, 0, buffer.Length - 14);
1034                         return retbuf;
1035                 }
1036
1037                 internal static IntPtr DupGlobalMem(IntPtr mem) {
1038                         IntPtr  dup;
1039                         IntPtr  dup_ptr;
1040                         IntPtr  mem_ptr;
1041                         uint    len;
1042
1043                         len = Win32GlobalSize(mem);
1044                         mem_ptr = Win32GlobalLock(mem);
1045
1046                         dup = Win32GlobalAlloc(GAllocFlags.GMEM_MOVEABLE, (int)len);
1047                         dup_ptr = Win32GlobalLock(dup);
1048
1049                         Win32CopyMemory(dup_ptr, mem_ptr, (int)len);
1050
1051                         Win32GlobalUnlock(mem);
1052                         Win32GlobalUnlock(dup);
1053
1054                         return dup;
1055                 }
1056
1057                 private int GetSystemParametersInfoInt (SPIAction spi)
1058                 {
1059                         int value = 0;
1060
1061                         Win32SystemParametersInfo (spi, 0, ref value, 0);
1062
1063                         return value;
1064                 }
1065
1066                 private bool GetSystemParametersInfoBool (SPIAction spi)
1067                 {
1068                         bool value = false;
1069
1070                         Win32SystemParametersInfo (spi, 0, ref value, 0);
1071
1072                         return value;
1073                 }
1074                 #endregion      // Private Support Methods
1075
1076                 #region Static Properties
1077                 internal override int ActiveWindowTrackingDelay {
1078                         get { return GetSystemParametersInfoInt (SPIAction.SPI_GETACTIVEWNDTRKTIMEOUT); }
1079                 }
1080
1081                 internal override int CaretWidth {
1082                         get {
1083                                 // Supported on 2k, XP, 2k3 +
1084                                 if (Environment.OSVersion.Version.Major < 5)
1085                                         throw new NotSupportedException ();
1086
1087                                 return GetSystemParametersInfoInt (SPIAction.SPI_GETCARETWIDTH);
1088                         }
1089                 }
1090
1091                 internal override int FontSmoothingContrast {
1092                         get {
1093                                 // Supported on XP, 2k3 +
1094                                 if (Environment.OSVersion.Version.Major < 5 || (Environment.OSVersion.Version.Major == 5 && Environment.OSVersion.Version.Minor == 0))
1095                                         throw new NotSupportedException ();
1096
1097                                 return GetSystemParametersInfoInt (SPIAction.SPI_GETFONTSMOOTHINGCONTRAST);
1098                         }
1099                 }
1100
1101                 internal override int FontSmoothingType {
1102                         get {
1103                                 // Supported on XP, 2k3 +
1104                                 if (Environment.OSVersion.Version.Major < 5 || (Environment.OSVersion.Version.Major == 5 && Environment.OSVersion.Version.Minor == 0))
1105                                         throw new NotSupportedException ();
1106
1107                                 return GetSystemParametersInfoInt (SPIAction.SPI_GETFONTSMOOTHINGTYPE);
1108                         }
1109                 }
1110
1111                 internal override int HorizontalResizeBorderThickness {
1112                         get { return Win32GetSystemMetrics (SystemMetrics.SM_CXSIZEFRAME); }
1113                 }
1114
1115                 internal override bool IsActiveWindowTrackingEnabled {
1116                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETACTIVEWINDOWTRACKING); }
1117                 }
1118
1119                 internal override bool IsComboBoxAnimationEnabled {
1120                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETCOMBOBOXANIMATION); }
1121                 }
1122
1123                 internal override bool IsDropShadowEnabled {
1124                         get {
1125                                 // Supported on XP, 2k3 +
1126                                 if (Environment.OSVersion.Version.Major < 5 || (Environment.OSVersion.Version.Major == 5 && Environment.OSVersion.Version.Minor == 0))
1127                                         throw new NotSupportedException ();
1128
1129                                 return GetSystemParametersInfoBool (SPIAction.SPI_GETDROPSHADOW);
1130                         }
1131                 }
1132
1133                 internal override bool IsFontSmoothingEnabled {
1134                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETFONTSMOOTHING); }
1135                 }
1136
1137                 internal override bool IsHotTrackingEnabled {
1138                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETHOTTRACKING); }
1139                 }
1140
1141                 internal override bool IsIconTitleWrappingEnabled {
1142                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETICONTITLEWRAP); }
1143                 }
1144
1145                 internal override bool IsKeyboardPreferred {
1146                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETKEYBOARDPREF); }
1147                 }
1148
1149                 internal override bool IsListBoxSmoothScrollingEnabled {
1150                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETLISTBOXSMOOTHSCROLLING); }
1151                 }
1152
1153                 internal override bool IsMenuAnimationEnabled {
1154                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETMENUANIMATION); }
1155                 }
1156
1157                 internal override bool IsMenuFadeEnabled {
1158                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETMENUFADE); }
1159                 }
1160
1161                 internal override bool IsMinimizeRestoreAnimationEnabled {
1162                         get {
1163                                 ANIMATIONINFO ai = new ANIMATIONINFO ();
1164                                 ai.cbSize = (uint)Marshal.SizeOf (ai);
1165
1166                                 Win32SystemParametersInfo (SPIAction.SPI_GETANIMATION, 0, ref ai, 0);
1167                                 return ai.iMinAnimate == 0 ? false : true;
1168                         }
1169                 }
1170
1171                 internal override bool IsSelectionFadeEnabled {
1172                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETSELECTIONFADE); }
1173                 }
1174
1175                 internal override bool IsSnapToDefaultEnabled {
1176                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETSNAPTODEFBUTTON); }
1177                 }
1178
1179                 internal override bool IsTitleBarGradientEnabled {
1180                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETGRADIENTCAPTIONS); }
1181                 }
1182
1183                 internal override bool IsToolTipAnimationEnabled {
1184                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETTOOLTIPANIMATION); }
1185                 }
1186
1187                 internal override Size MenuBarButtonSize {
1188                         get {
1189                                 return new Size (Win32GetSystemMetrics (SystemMetrics.SM_CXMENUSIZE),
1190                                         Win32GetSystemMetrics (SystemMetrics.SM_CYMENUSIZE));
1191                         }
1192                 }
1193
1194                 public override Size MenuButtonSize {
1195                         get {
1196                                 return new Size (
1197                                         Win32GetSystemMetrics (SystemMetrics.SM_CXMENUSIZE),
1198                                         Win32GetSystemMetrics (SystemMetrics.SM_CYMENUSIZE));
1199                         }
1200                 }
1201
1202                 internal override int MenuShowDelay {
1203                         get { return GetSystemParametersInfoInt (SPIAction.SPI_GETMENUSHOWDELAY); }
1204                 }
1205
1206                 internal override int MouseSpeed {
1207                         get { return GetSystemParametersInfoInt (SPIAction.SPI_GETMOUSESPEED); }
1208                 }
1209
1210                 internal override LeftRightAlignment PopupMenuAlignment {
1211                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETMENUDROPALIGNMENT) == true ? LeftRightAlignment.Left : LeftRightAlignment.Right; }
1212                 }
1213
1214 #if NET_2_0
1215                 internal override PowerStatus PowerStatus {
1216                         get {
1217                                 SYSTEMPOWERSTATUS p = new SYSTEMPOWERSTATUS ();
1218
1219                                 Win32GetSystemPowerStatus (p);
1220
1221                                 PowerStatus ps = new PowerStatus ((BatteryChargeStatus)p._BatteryFlag, p._BatteryFullLifeTime, (float)p._BatteryLifePercent / 255f, p._BatteryLifeTime, (PowerLineStatus)p._ACLineStatus);
1222
1223                                 return ps;
1224                         }
1225                 }
1226 #endif
1227
1228                 internal override int SizingBorderWidth {
1229                         get { return Win32GetSystemMetrics (SystemMetrics.SM_CXSIZEFRAME); }
1230                 }
1231
1232                 internal override Size SmallCaptionButtonSize {
1233                         get {
1234                                 return new Size (Win32GetSystemMetrics (SystemMetrics.SM_CXSMSIZE),
1235                                         Win32GetSystemMetrics (SystemMetrics.SM_CYSMSIZE));
1236                         }
1237                 }
1238
1239                 internal override bool UIEffectsEnabled {
1240                         get { return GetSystemParametersInfoBool (SPIAction.SPI_GETUIEFFECTS); }
1241                 }
1242
1243                 internal override int VerticalResizeBorderThickness {
1244                         get { return Win32GetSystemMetrics (SystemMetrics.SM_CYSIZEFRAME); }
1245                 }
1246
1247                 internal override void RaiseIdle (EventArgs e)
1248                 {
1249                         if (Idle != null)
1250                                 Idle (this, e);
1251                 }
1252
1253                 internal override Keys ModifierKeys {
1254                         get {
1255                                 short   state;
1256                                 Keys    key_state;
1257
1258                                 key_state = Keys.None;
1259
1260                                 state = Win32GetKeyState(VirtualKeys.VK_SHIFT);
1261                                 if ((state & 0x8000) != 0) {
1262                                         key_state |= Keys.Shift;
1263                                 }
1264                                 state = Win32GetKeyState(VirtualKeys.VK_CONTROL);
1265                                 if ((state & 0x8000) != 0) {
1266                                         key_state |= Keys.Control;
1267                                 }
1268
1269                                 state = Win32GetKeyState(VirtualKeys.VK_MENU);
1270                                 if ((state & 0x8000) != 0) {
1271                                         key_state |= Keys.Alt;
1272                                 }
1273
1274                                 return key_state;
1275                         }
1276                 }
1277
1278                 internal override MouseButtons MouseButtons {
1279                         get {
1280                                 return mouse_state;
1281                         }
1282                 }
1283
1284                 internal override Point MousePosition {
1285                         get {
1286                                 return mouse_position;
1287                         }
1288                 }
1289
1290                 internal override Size MouseHoverSize {
1291                         get {
1292                                 int     width = 4;
1293                                 int     height = 4;
1294
1295                                 Win32SystemParametersInfo(SPIAction.SPI_GETMOUSEHOVERWIDTH, 0, ref width, 0);
1296                                 Win32SystemParametersInfo(SPIAction.SPI_GETMOUSEHOVERWIDTH, 0, ref height, 0);
1297                                 return new Size(width, height);
1298                         }
1299                 }
1300
1301                 internal override int MouseHoverTime {
1302                         get {
1303                                 int time = 500;
1304
1305                                 Win32SystemParametersInfo(SPIAction.SPI_GETMOUSEHOVERTIME, 0, ref time, 0);
1306                                 return time;
1307                         }
1308                 }
1309
1310                 internal override int MouseWheelScrollDelta {
1311                         get {
1312                                 int delta = 120;
1313                                 Win32SystemParametersInfo(SPIAction.SPI_GETWHEELSCROLLLINES, 0, ref delta, 0);
1314                                 return delta;
1315                         }
1316                 }
1317
1318                 internal override int HorizontalScrollBarHeight {
1319                         get {
1320                                 return scroll_height;
1321                         }
1322                 }
1323
1324                 internal override bool UserClipWontExposeParent {
1325                         get {
1326                                 return false;
1327                         }
1328                 }
1329
1330
1331                 internal override int VerticalScrollBarWidth {
1332                         get {
1333                                 return scroll_width;
1334                         }
1335                 }
1336
1337                 internal override int MenuHeight {
1338                         get {
1339                                 return Win32GetSystemMetrics(SystemMetrics.SM_CYMENU);
1340                         }
1341                 }
1342
1343                 internal override Size Border3DSize {
1344                         get {
1345                                 return new Size (Win32GetSystemMetrics (SystemMetrics.SM_CXEDGE),
1346                                         Win32GetSystemMetrics (SystemMetrics.SM_CYEDGE));
1347                         }
1348                 }
1349
1350                 internal override Size BorderSize {
1351                         get {
1352                                 return new Size (Win32GetSystemMetrics (SystemMetrics.SM_CXBORDER),
1353                                         Win32GetSystemMetrics (SystemMetrics.SM_CYBORDER));
1354                         }
1355                 }
1356
1357                 internal override bool DropTarget {
1358                         get {
1359                                 return false;
1360                         }
1361
1362                         set {
1363                                 if (value) {
1364                                         //throw new NotImplementedException("Need to figure out D'n'D for Win32");
1365                                 }
1366                         }
1367                 }
1368
1369                 internal override Size CaptionButtonSize {
1370                         get {
1371                                 return new Size (Win32GetSystemMetrics (SystemMetrics.SM_CXSIZE),
1372                                         Win32GetSystemMetrics (SystemMetrics.SM_CYSIZE));
1373                         }
1374                 }
1375
1376                 internal override int CaptionHeight {
1377                         get {
1378                                 return Win32GetSystemMetrics(SystemMetrics.SM_CYCAPTION);
1379                         }
1380                 }
1381
1382                 internal override Size CursorSize {
1383                         get {
1384                                 return new Size(Win32GetSystemMetrics(SystemMetrics.SM_CXCURSOR), Win32GetSystemMetrics(SystemMetrics.SM_CYCURSOR));
1385                         }
1386                 }
1387
1388                 internal override bool DragFullWindows {
1389                         get {
1390                                 int full = 0;
1391                                 Win32SystemParametersInfo (SPIAction.SPI_GETDRAGFULLWINDOWS, 0, ref full, 0);
1392                                 return (full != 0);
1393                         }
1394                 }
1395
1396                 internal override Size DragSize {
1397                         get {
1398                                 return new Size(Win32GetSystemMetrics(SystemMetrics.SM_CXDRAG), Win32GetSystemMetrics(SystemMetrics.SM_CYDRAG));
1399                         }
1400                 }
1401
1402                 internal override Size DoubleClickSize {
1403                         get {
1404                                 return new Size (Win32GetSystemMetrics (SystemMetrics.SM_CXDOUBLECLK),
1405                                         Win32GetSystemMetrics (SystemMetrics.SM_CYDOUBLECLK));
1406                         }
1407                 }
1408
1409                 internal override int DoubleClickTime {
1410                         get {
1411                                 return Win32GetDoubleClickTime ();
1412                         }
1413                 }
1414
1415                 internal override Size FixedFrameBorderSize {
1416                         get {
1417                                 return new Size (Win32GetSystemMetrics (SystemMetrics.SM_CXFIXEDFRAME),
1418                                         Win32GetSystemMetrics (SystemMetrics.SM_CYFIXEDFRAME));
1419                         }
1420                 }
1421
1422                 internal override Size FrameBorderSize {
1423                         get {
1424                                 return new Size(Win32GetSystemMetrics(SystemMetrics.SM_CXFRAME), Win32GetSystemMetrics(SystemMetrics.SM_CYFRAME));
1425                         }
1426                 }
1427
1428                 internal override Size IconSize {
1429                         get {
1430                                 return new Size(Win32GetSystemMetrics(SystemMetrics.SM_CXICON), Win32GetSystemMetrics(SystemMetrics.SM_CYICON));
1431                         }
1432                 }
1433
1434                 internal override Size MaxWindowTrackSize {
1435                         get {
1436                                 return new Size(Win32GetSystemMetrics(SystemMetrics.SM_CXMAXTRACK), Win32GetSystemMetrics(SystemMetrics.SM_CYMAXTRACK));
1437                         }
1438                 }
1439
1440                 internal override bool MenuAccessKeysUnderlined {
1441                         get {
1442                                 int underlined = 0;
1443                                 Win32SystemParametersInfo (SPIAction.SPI_GETKEYBOARDCUES, 0, ref underlined, 0);
1444                                 return (underlined != 0);
1445                         }
1446                 }
1447
1448                 internal override Size MinimizedWindowSize {
1449                         get {
1450                                 return new Size(Win32GetSystemMetrics(SystemMetrics.SM_CXMINIMIZED), Win32GetSystemMetrics(SystemMetrics.SM_CYMINIMIZED));
1451                         }
1452                 }
1453
1454                 internal override Size MinimizedWindowSpacingSize {
1455                         get {
1456                                 return new Size(Win32GetSystemMetrics(SystemMetrics.SM_CXMINSPACING), Win32GetSystemMetrics(SystemMetrics.SM_CYMINSPACING));
1457                         }
1458                 }
1459
1460                 internal override Size MinimumWindowSize {
1461                         get {
1462                                 return new Size(Win32GetSystemMetrics(SystemMetrics.SM_CXMIN), Win32GetSystemMetrics(SystemMetrics.SM_CYMIN));
1463                         }
1464                 }
1465
1466                 internal override Size MinWindowTrackSize {
1467                         get {
1468                                 return new Size(Win32GetSystemMetrics(SystemMetrics.SM_CXMINTRACK), Win32GetSystemMetrics(SystemMetrics.SM_CYMINTRACK));
1469                         }
1470                 }
1471
1472                 internal override Size SmallIconSize {
1473                         get {
1474                                 return new Size(Win32GetSystemMetrics(SystemMetrics.SM_CXSMICON), Win32GetSystemMetrics(SystemMetrics.SM_CYSMICON));
1475                         }
1476                 }
1477
1478                 internal override int MouseButtonCount {
1479                         get {
1480                                 return Win32GetSystemMetrics(SystemMetrics.SM_CMOUSEBUTTONS);
1481                         }
1482                 }
1483
1484                 internal override bool MouseButtonsSwapped {
1485                         get {
1486                                 return Win32GetSystemMetrics(SystemMetrics.SM_SWAPBUTTON) != 0;
1487                         }
1488                 }
1489
1490                 internal override bool MouseWheelPresent {
1491                         get {
1492                                 return Win32GetSystemMetrics(SystemMetrics.SM_MOUSEWHEELPRESENT) != 0;
1493                         }
1494                 }
1495
1496                 internal override Rectangle VirtualScreen {
1497                         get {
1498                                 return new Rectangle(   Win32GetSystemMetrics(SystemMetrics.SM_XVIRTUALSCREEN), Win32GetSystemMetrics(SystemMetrics.SM_YVIRTUALSCREEN),
1499                                                         Win32GetSystemMetrics(SystemMetrics.SM_CXVIRTUALSCREEN), Win32GetSystemMetrics(SystemMetrics.SM_CYVIRTUALSCREEN));
1500                         }
1501                 }
1502
1503                 internal override Rectangle WorkingArea {
1504                         get {
1505                                 RECT    rect;
1506
1507                                 rect = new RECT();
1508                                 Win32SystemParametersInfo(SPIAction.SPI_GETWORKAREA, 0, ref rect, 0);
1509                                 return new Rectangle(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
1510                                 //return new Rectangle(0, 0, Win32GetSystemMetrics(SystemMetrics.SM.SM_CXSCREEN), Win32GetSystemMetrics(SystemMetrics.SM_CYSCREEN));
1511                         }
1512                 }
1513
1514                 internal override bool ThemesEnabled {
1515                         get {
1516                                 return XplatUIWin32.themes_enabled;
1517                         }
1518                 }
1519
1520                 internal override bool RequiresPositiveClientAreaSize {
1521                         get {
1522                                 return false;
1523                         }
1524                 }
1525
1526                 public override int ToolWindowCaptionHeight {
1527                         get {
1528                                 return Win32GetSystemMetrics (SystemMetrics.SM_CYSMCAPTION);
1529                         }
1530                 }
1531
1532                 public override Size ToolWindowCaptionButtonSize {
1533                         get {
1534                                 return new Size (
1535                                         Win32GetSystemMetrics (SystemMetrics.SM_CXSMSIZE),
1536                                         Win32GetSystemMetrics (SystemMetrics.SM_CYSMSIZE));
1537                         }
1538                 }
1539                 #endregion      // Static Properties
1540
1541                 #region Singleton Specific Code
1542                 public static XplatUIWin32 GetInstance() {
1543                         if (instance==null) {
1544                                 instance=new XplatUIWin32();
1545                         }
1546                         ref_count++;
1547                         return instance;
1548                 }
1549
1550                 public int Reference {
1551                         get {
1552                                 return ref_count;
1553                         }
1554                 }
1555                 #endregion
1556
1557                 #region Public Static Methods
1558                 internal override IntPtr InitializeDriver() {
1559                         return IntPtr.Zero;
1560                 }
1561
1562                 internal override void ShutdownDriver(IntPtr token) {
1563                         Console.WriteLine("XplatUIWin32 ShutdownDriver called");
1564                 }
1565
1566
1567                 internal void Version() {
1568                         Console.WriteLine("Xplat version $revision: $");
1569                 }
1570
1571                 internal override void AudibleAlert() {
1572                         Win32PlaySound("Default", IntPtr.Zero, SndFlags.SND_ALIAS | SndFlags.SND_ASYNC | SndFlags.SND_NOSTOP | SndFlags.SND_NOWAIT);
1573                 }
1574
1575                 internal override void GetDisplaySize(out Size size) {
1576                         RECT    rect;
1577
1578                         Win32GetWindowRect(Win32GetDesktopWindow(), out rect);
1579
1580                         size = new Size(rect.right - rect.left, rect.bottom - rect.top);
1581                 }
1582
1583                 internal override void EnableThemes() {
1584                         themes_enabled=true;
1585                 }
1586
1587                 internal override IntPtr CreateWindow(CreateParams cp) {
1588                         IntPtr  WindowHandle;
1589                         IntPtr  ParentHandle;
1590                         Hwnd    hwnd;
1591
1592                         hwnd = new Hwnd();
1593
1594                         ParentHandle=cp.Parent;
1595
1596                         if ((ParentHandle==IntPtr.Zero) && (cp.Style & (int)(WindowStyles.WS_CHILD))!=0) {
1597                                 // We need to use our foster parent window until this poor child gets it's parent assigned
1598                                 ParentHandle = FosterParent;
1599                         }
1600
1601                         if ( ((cp.Style & (int)(WindowStyles.WS_CHILD | WindowStyles.WS_POPUP))==0) && ((cp.ExStyle & (int)WindowExStyles.WS_EX_APPWINDOW) == 0)) {
1602                                 // If we want to be hidden from the taskbar we need to be 'owned' by
1603                                 // something not on the taskbar. FosterParent is just that
1604                                 ParentHandle = FosterParent;
1605                         }
1606
1607                         Point location;
1608                         if (cp.HasWindowManager) {
1609                                 location = Hwnd.GetNextStackedFormLocation (cp, Hwnd.ObjectFromHandle (cp.Parent));
1610                         } else {
1611                                 location = new Point (cp.X, cp.Y);
1612                         }
1613
1614                         string class_name = RegisterWindowClass (cp.ClassStyle);
1615                         HwndCreating = hwnd;
1616
1617                         // We cannot actually send the WS_EX_MDICHILD flag to Windows because we
1618                         // are faking MDI, not uses Windows' version.
1619                         if ((cp.WindowExStyle & WindowExStyles.WS_EX_MDICHILD) == WindowExStyles.WS_EX_MDICHILD)
1620                                 cp.WindowExStyle ^= WindowExStyles.WS_EX_MDICHILD;
1621
1622                         WindowHandle = Win32CreateWindow (cp.WindowExStyle, class_name, cp.Caption, cp.WindowStyle, location.X, location.Y, cp.Width, cp.Height, ParentHandle, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
1623
1624                         HwndCreating = null;
1625
1626                         if (WindowHandle==IntPtr.Zero) {
1627                                 int error = Marshal.GetLastWin32Error ();
1628
1629                                 Win32MessageBox(IntPtr.Zero, "Error : " + error.ToString(), "Failed to create window, class '"+cp.ClassName+"'", 0);
1630                         }
1631
1632                         hwnd.ClientWindow = WindowHandle;
1633                         hwnd.Mapped = true;
1634                         Win32SetWindowLong(WindowHandle, WindowLong.GWL_USERDATA, (uint)ThemeEngine.Current.DefaultControlBackColor.ToArgb());
1635
1636                         return WindowHandle;
1637                 }
1638
1639                 internal override IntPtr CreateWindow(IntPtr Parent, int X, int Y, int Width, int Height) {
1640                         CreateParams create_params = new CreateParams();
1641
1642                         create_params.Caption = "";
1643                         create_params.X = X;
1644                         create_params.Y = Y;
1645                         create_params.Width = Width;
1646                         create_params.Height = Height;
1647
1648                         create_params.ClassName=XplatUI.DefaultClassName;
1649                         create_params.ClassStyle = 0;
1650                         create_params.ExStyle=0;
1651                         create_params.Parent=IntPtr.Zero;
1652                         create_params.Param=0;
1653
1654                         return CreateWindow(create_params);
1655                 }
1656
1657                 internal override void DestroyWindow(IntPtr handle) {
1658                         Hwnd    hwnd;
1659
1660                         hwnd = Hwnd.ObjectFromHandle(handle);
1661                         Win32DestroyWindow(handle);
1662                         hwnd.Dispose();
1663                         return;
1664                 }
1665
1666                 internal override void SetWindowMinMax(IntPtr handle, Rectangle maximized, Size min, Size max) {
1667                         // We do nothing, Form has to handle WM_GETMINMAXINFO
1668                 }
1669
1670
1671                 internal override FormWindowState GetWindowState(IntPtr handle) {
1672                         uint style;
1673
1674                         style = Win32GetWindowLong(handle, WindowLong.GWL_STYLE);
1675                         if ((style & (uint)WindowStyles.WS_MAXIMIZE) != 0) {
1676                                 return FormWindowState.Maximized;
1677                         } else if ((style & (uint)WindowStyles.WS_MINIMIZE) != 0) {
1678                                 return FormWindowState.Minimized;
1679                         }
1680                         return FormWindowState.Normal;
1681                 }
1682
1683                 internal override void SetWindowState(IntPtr hwnd, FormWindowState state) {
1684                         switch(state) {
1685                                 case FormWindowState.Normal: {
1686                                         Win32ShowWindow(hwnd, WindowPlacementFlags.SW_RESTORE);
1687                                         return;
1688                                 }
1689
1690                                 case FormWindowState.Minimized: {
1691                                         Win32ShowWindow(hwnd, WindowPlacementFlags.SW_MINIMIZE);
1692                                         return;
1693                                 }
1694
1695                                 case FormWindowState.Maximized: {
1696                                         Win32ShowWindow(hwnd, WindowPlacementFlags.SW_MAXIMIZE);
1697                                         return;
1698                                 }
1699                         }
1700                 }
1701
1702                 internal override void SetWindowStyle(IntPtr handle, CreateParams cp) {
1703
1704                         Win32SetWindowLong(handle, WindowLong.GWL_STYLE, (uint)cp.Style);
1705                         Win32SetWindowLong(handle, WindowLong.GWL_EXSTYLE, (uint)cp.ExStyle);
1706
1707                         // From MSDN:
1708                         // Certain window data is cached, so changes you make using SetWindowLong
1709                         // will not take effect until you call the SetWindowPos function. Specifically,
1710                         // if you change any of the frame styles, you must call SetWindowPos with
1711                         // the SWP_FRAMECHANGED flag for the cache to be updated properly.
1712                         if (cp.control is Form)
1713                                 XplatUI.RequestNCRecalc (handle);
1714                 }
1715
1716                 internal override double GetWindowTransparency(IntPtr handle)
1717                 {
1718                         LayeredWindowAttributes lwa;
1719                         COLORREF clrRef;
1720                         byte alpha;
1721
1722                         if (0 == Win32GetLayeredWindowAttributes (handle, out clrRef, out alpha, out lwa))
1723                                 return 1.0;
1724
1725                         return ((double)alpha) / 255.0;
1726                 }
1727
1728                 internal override void SetWindowTransparency(IntPtr handle, double transparency, Color key) {
1729                         LayeredWindowAttributes lwa = LayeredWindowAttributes.LWA_ALPHA;
1730                         byte opacity = (byte)(transparency*255);
1731                         COLORREF clrRef = new COLORREF();
1732                         if (key != Color.Empty) {
1733                                 clrRef.R = key.R;
1734                                 clrRef.G = key.G;
1735                                 clrRef.B = key.B;
1736                                 lwa = (LayeredWindowAttributes)( (int)lwa | (int)LayeredWindowAttributes.LWA_COLORKEY );
1737                         }
1738                         RECT rc;
1739                         rc.right = 1000;
1740                         rc.bottom = 1000;
1741                         Win32SetLayeredWindowAttributes(handle, clrRef, opacity, lwa);
1742                 }
1743
1744                 TransparencySupport support;
1745                 bool queried_transparency_support;
1746                 internal override TransparencySupport SupportsTransparency() {
1747                         if (queried_transparency_support)
1748                                 return support;
1749
1750                         bool flag;
1751                         support = TransparencySupport.None;
1752
1753                         flag = true;
1754                         try {
1755                                 Win32SetLayeredWindowAttributes (IntPtr.Zero, new COLORREF (), 255, LayeredWindowAttributes.LWA_ALPHA);
1756                         }
1757                         catch (EntryPointNotFoundException) { flag = false; }
1758                         catch { /* swallow everything else */ }
1759
1760                         if (flag) support |= TransparencySupport.Set;
1761
1762                         flag = true;
1763                         try {
1764                                 LayeredWindowAttributes lwa;
1765                                 COLORREF clrRef;
1766                                 byte alpha;
1767
1768                                 Win32GetLayeredWindowAttributes (IntPtr.Zero, out clrRef, out alpha, out lwa);
1769                         }
1770                         catch (EntryPointNotFoundException) { flag = false; }
1771                         catch { /* swallow everything else */ }
1772
1773                         if (flag) support |= TransparencySupport.Get;
1774
1775                         queried_transparency_support = true;
1776                         return support;
1777                 }
1778
1779                 internal override void UpdateWindow(IntPtr handle) {
1780                         Win32UpdateWindow(handle);
1781                 }
1782
1783                 internal override PaintEventArgs PaintEventStart(ref Message msg, IntPtr handle, bool client) {
1784                         IntPtr          hdc;
1785                         PAINTSTRUCT     ps;
1786                         PaintEventArgs  paint_event;
1787                         RECT            rect;
1788                         Rectangle       clip_rect;
1789                         Hwnd            hwnd;
1790
1791                         clip_rect = new Rectangle();
1792                         rect = new RECT();
1793                         ps = new PAINTSTRUCT();
1794
1795                         hwnd = Hwnd.ObjectFromHandle(msg.HWnd);
1796
1797                         if (client) {
1798                                 if (Win32GetUpdateRect(msg.HWnd, ref rect, false)) {
1799                                         if (handle != msg.HWnd) {
1800                                                 // We need to validate the window where the paint message
1801                                                 // was generated, otherwise we'll never stop getting paint
1802                                                 // messages.
1803                                                 Win32GetClientRect (msg.HWnd, out rect);
1804                                                 Win32ValidateRect (msg.HWnd, ref rect);
1805                                                 hdc = Win32GetDC (handle);
1806                                         } else {
1807                                                 hdc = Win32BeginPaint (handle, ref ps);
1808                                                 rect = ps.rcPaint;
1809                                         }
1810                                 } else {
1811                                         hdc = Win32GetDC(handle);
1812                                 }
1813                                 clip_rect = rect.ToRectangle ();
1814                         } else {
1815                                 hdc = Win32GetWindowDC (handle);
1816
1817                                 // HACK this in for now
1818                                 Win32GetWindowRect (handle, out rect);
1819                                 clip_rect = new Rectangle (0, 0, rect.Width, rect.Height);
1820                         }
1821
1822                         // If we called BeginPaint, store the PAINTSTRUCT,
1823                         // otherwise store hdc, so that PaintEventEnd can know
1824                         // whether to call EndPaint or ReleaseDC.
1825                         if (ps.hdc != IntPtr.Zero) {
1826                                 hwnd.drawing_stack.Push (ps);
1827                         } else {
1828                                 hwnd.drawing_stack.Push (hdc);
1829                         }
1830
1831                         Graphics dc = Graphics.FromHdc(hdc);
1832                         hwnd.drawing_stack.Push (dc);
1833
1834                         paint_event = new PaintEventArgs(dc, clip_rect);
1835
1836                         return paint_event;
1837                 }
1838
1839                 internal override void PaintEventEnd(ref Message m, IntPtr handle, bool client) {
1840                         Hwnd            hwnd;
1841
1842                         hwnd = Hwnd.ObjectFromHandle(m.HWnd);
1843
1844                         Graphics dc = (Graphics)hwnd.drawing_stack.Pop();
1845                         dc.Dispose ();
1846
1847                         object o = hwnd.drawing_stack.Pop();
1848                         if (o is IntPtr) {
1849                                 IntPtr hdc = (IntPtr) o;
1850                                 Win32ReleaseDC (handle, hdc);
1851                         } else if (o is PAINTSTRUCT) {
1852                                 PAINTSTRUCT ps = (PAINTSTRUCT) o;
1853                                 Win32EndPaint (handle, ref ps);
1854                         }
1855                 }
1856
1857
1858                 internal override void SetWindowPos(IntPtr handle, int x, int y, int width, int height) {
1859                         Win32MoveWindow(handle, x, y, width, height, true);
1860                         return;
1861                 }
1862
1863                 internal override void GetWindowPos(IntPtr handle, bool is_toplevel, out int x, out int y, out int width, out int height, out int client_width, out int client_height) {
1864                         IntPtr  parent;
1865                         RECT    rect;
1866                         POINT   pt;
1867
1868                         Win32GetWindowRect(handle, out rect);
1869                         width = rect.right - rect.left;
1870                         height = rect.bottom - rect.top;
1871
1872                         pt.x=rect.left;
1873                         pt.y=rect.top;
1874
1875                         parent = Win32GetAncestor (handle, AncestorType.GA_PARENT);
1876                         if (parent != IntPtr.Zero && parent != Win32GetDesktopWindow ())
1877                                 Win32ScreenToClient(parent, ref pt);
1878
1879                         x = pt.x;
1880                         y = pt.y;
1881
1882                         Win32GetClientRect(handle, out rect);
1883                         client_width = rect.right - rect.left;
1884                         client_height = rect.bottom - rect.top;
1885                         return;
1886                 }
1887
1888                 internal override void Activate(IntPtr handle) {
1889                         Win32SetActiveWindow(handle);
1890                         // delayed timer enabled
1891                         lock (timer_list) {
1892                                 foreach (Timer t in timer_list.Values) {
1893                                         if (t.Enabled && t.window == IntPtr.Zero) {
1894                                                 t.window = handle;
1895                                                 int id = t.GetHashCode ();
1896                                                 Win32SetTimer(handle, id, (uint)t.Interval, IntPtr.Zero);
1897                                         }
1898                                 }
1899                         }
1900                 }
1901
1902                 internal override void Invalidate(IntPtr handle, Rectangle rc, bool clear) {
1903                         RECT rect;
1904
1905                         rect.left=rc.Left;
1906                         rect.top=rc.Top;
1907                         rect.right=rc.Right;
1908                         rect.bottom=rc.Bottom;
1909                         Win32InvalidateRect(handle, ref rect, clear);
1910                 }
1911
1912
1913                 internal override void InvalidateNC (IntPtr handle)
1914                 {
1915                         // found this gem at
1916                         // http://www.dotnet247.com/247reference/msgs/58/292037.aspx
1917                         Win32SetWindowPos(handle, IntPtr.Zero,
1918                                           0, 0, 0, 0,
1919                                           SetWindowPosFlags.SWP_NOMOVE |
1920                                           SetWindowPosFlags.SWP_NOSIZE |
1921                                           SetWindowPosFlags.SWP_NOZORDER |
1922                                           SetWindowPosFlags.SWP_NOACTIVATE |
1923                                           SetWindowPosFlags.SWP_DRAWFRAME);
1924                 }
1925
1926                 private IntPtr InternalWndProc (IntPtr hWnd, Msg msg, IntPtr wParam, IntPtr lParam)
1927                 {
1928                         if (HwndCreating != null && HwndCreating.ClientWindow == IntPtr.Zero)
1929                                 HwndCreating.ClientWindow = hWnd;
1930                         return NativeWindow.WndProc (hWnd, msg, wParam, lParam);
1931                 }
1932
1933                 internal override IntPtr DefWndProc(ref Message msg) {
1934                         msg.Result=Win32DefWindowProc(msg.HWnd, (Msg)msg.Msg, msg.WParam, msg.LParam);
1935                         return msg.Result;
1936                 }
1937
1938                 internal override void HandleException(Exception e) {
1939                         StackTrace st = new StackTrace(e);
1940                         Win32MessageBox(IntPtr.Zero, e.Message+st.ToString(), "Exception", 0);
1941                         Console.WriteLine("{0}{1}", e.Message, st.ToString());
1942                 }
1943
1944                 internal override void DoEvents() {
1945                         MSG msg = new MSG();
1946
1947                         while (GetMessage(ref msg, IntPtr.Zero, 0, 0, false)) {
1948                                 Message m = Message.Create (msg.hwnd, (int)msg.message, msg.wParam, msg.lParam);
1949
1950                                 if (Application.FilterMessage (ref m))
1951                                         continue;
1952
1953                                 XplatUI.TranslateMessage(ref msg);
1954                                 XplatUI.DispatchMessage(ref msg);
1955                         }
1956                 }
1957
1958                 internal override bool PeekMessage(Object queue_id, ref MSG msg, IntPtr hWnd, int wFilterMin, int wFilterMax, uint flags) {
1959                         return Win32PeekMessage(ref msg, hWnd, wFilterMin, wFilterMax, flags);
1960                 }
1961
1962                 internal override void PostQuitMessage(int exitCode) {
1963                         Win32PostQuitMessage(exitCode);
1964                 }
1965
1966                 internal override void RequestAdditionalWM_NCMessages(IntPtr hwnd, bool hover, bool leave)
1967                 {
1968                         if (wm_nc_registered == null)
1969                                 wm_nc_registered = new Hashtable ();
1970
1971                         TMEFlags flags = TMEFlags.TME_NONCLIENT;
1972                         if (hover)
1973                                 flags |= TMEFlags.TME_HOVER;
1974                         if (leave)
1975                                 flags |= TMEFlags.TME_LEAVE;
1976
1977                         if (flags == TMEFlags.TME_NONCLIENT) {
1978                                 if (wm_nc_registered.Contains (hwnd)) {
1979                                         wm_nc_registered.Remove (hwnd);
1980                                 }
1981                         } else {
1982                                 if (!wm_nc_registered.Contains (hwnd)) {
1983                                         wm_nc_registered.Add (hwnd, flags);
1984                                 } else {
1985                                         wm_nc_registered [hwnd] = flags;
1986                                 }
1987                         }
1988                 }
1989
1990                 internal override void RequestNCRecalc(IntPtr handle) {
1991                         Win32SetWindowPos(handle, IntPtr.Zero, 0, 0, 0, 0, SetWindowPosFlags.SWP_FRAMECHANGED | SetWindowPosFlags.SWP_NOOWNERZORDER | SetWindowPosFlags.SWP_NOSIZE | SetWindowPosFlags.SWP_NOMOVE | SetWindowPosFlags.SWP_NOZORDER | SetWindowPosFlags.SWP_NOACTIVATE);
1992                 }
1993
1994                 internal override void ResetMouseHover(IntPtr handle) {
1995                         TRACKMOUSEEVENT tme;
1996
1997                         tme = new TRACKMOUSEEVENT();
1998                         tme.size = Marshal.SizeOf(tme);
1999                         tme.hWnd = handle;
2000                         tme.dwFlags = TMEFlags.TME_LEAVE | TMEFlags.TME_HOVER;
2001                         Win32TrackMouseEvent(ref tme);
2002                 }
2003
2004
2005                 internal override bool GetMessage(Object queue_id, ref MSG msg, IntPtr hWnd, int wFilterMin, int wFilterMax) {
2006                         return GetMessage(ref msg, hWnd, wFilterMin, wFilterMax, true);
2007                 }
2008
2009                 private bool GetMessage(ref MSG msg, IntPtr hWnd, int wFilterMin, int wFilterMax, bool blocking) {
2010                         bool            result;
2011
2012                         msg.refobject = 0;
2013                         if (RetrieveMessage(ref msg)) {
2014                                 return true;
2015                         }
2016
2017                         if (blocking) {
2018                                 result = Win32GetMessage(ref msg, hWnd, wFilterMin, wFilterMax);
2019                         } else {
2020                                 result = Win32PeekMessage(ref msg, hWnd, wFilterMin, wFilterMax, (uint)PeekMessageFlags.PM_REMOVE);
2021                                 if (!result) {
2022                                         return false;
2023                                 }
2024                         }
2025
2026                         // We need to fake WM_MOUSE_ENTER
2027                         switch (msg.message) {
2028                                 case Msg.WM_LBUTTONDOWN: {
2029                                         mouse_state |= MouseButtons.Left;
2030                                         break;
2031                                 }
2032
2033                                 case Msg.WM_MBUTTONDOWN: {
2034                                         mouse_state |= MouseButtons.Middle;
2035                                         break;
2036                                 }
2037
2038                                 case Msg.WM_RBUTTONDOWN: {
2039                                         mouse_state |= MouseButtons.Right;
2040                                         break;
2041                                 }
2042
2043                                 case Msg.WM_LBUTTONUP: {
2044                                         mouse_state &= ~MouseButtons.Left;
2045                                         break;
2046                                 }
2047
2048                                 case Msg.WM_MBUTTONUP: {
2049                                         mouse_state &= ~MouseButtons.Middle;
2050                                         break;
2051                                 }
2052
2053                                 case Msg.WM_RBUTTONUP: {
2054                                         mouse_state &= ~MouseButtons.Right;
2055                                         break;
2056                                 }
2057
2058                                 case Msg.WM_ASYNC_MESSAGE: {
2059                                         XplatUIDriverSupport.ExecuteClientMessage((GCHandle)msg.lParam);
2060                                         break;
2061                                 }
2062
2063                                 case Msg.WM_MOUSEMOVE: {
2064                                         if (msg.hwnd != prev_mouse_hwnd) {
2065                                                 TRACKMOUSEEVENT tme;
2066
2067                                                 mouse_state = Control.FromParamToMouseButtons ((int)msg.lParam.ToInt32());
2068
2069                                                 // The current message will be sent out next time around
2070                                                 StoreMessage(ref msg);
2071
2072                                                 // This is the message we want to send at this point
2073                                                 msg.message = Msg.WM_MOUSE_ENTER;
2074
2075                                                 prev_mouse_hwnd = msg.hwnd;
2076
2077                                                 tme = new TRACKMOUSEEVENT();
2078                                                 tme.size = Marshal.SizeOf(tme);
2079                                                 tme.hWnd = msg.hwnd;
2080                                                 tme.dwFlags = TMEFlags.TME_LEAVE | TMEFlags.TME_HOVER;
2081                                                 Win32TrackMouseEvent(ref tme);
2082                                                 return result;
2083                                         }
2084                                         break;
2085                                 }
2086
2087                                 case Msg.WM_NCMOUSEMOVE: {
2088                                         if (wm_nc_registered == null || !wm_nc_registered.Contains (msg.hwnd))
2089                                                 break;
2090
2091                                         mouse_state = Control.FromParamToMouseButtons ((int)msg.lParam.ToInt32 ());
2092
2093                                         TRACKMOUSEEVENT tme;
2094
2095                                         tme = new TRACKMOUSEEVENT ();
2096                                         tme.size = Marshal.SizeOf(tme);
2097                                         tme.hWnd = msg.hwnd;
2098                                         tme.dwFlags = (TMEFlags)wm_nc_registered[msg.hwnd];
2099                                         Win32TrackMouseEvent (ref tme);
2100                                         return result;
2101                                 }
2102
2103                                 case Msg.WM_DROPFILES: {
2104                                         return Win32DnD.HandleWMDropFiles(ref msg);
2105                                 }
2106
2107                                 case Msg.WM_MOUSELEAVE: {
2108                                         prev_mouse_hwnd = IntPtr.Zero;
2109                                         break;
2110                                 }
2111
2112                                 case Msg.WM_TIMER: {
2113                                         Timer timer=(Timer)timer_list[(int)msg.wParam];
2114
2115                                         if (timer != null) {
2116                                                 timer.FireTick();
2117                                         }
2118                                         break;
2119                                 }
2120                         }
2121
2122                         return result;
2123                 }
2124
2125                 internal override bool TranslateMessage(ref MSG msg) {
2126                         return Win32TranslateMessage(ref msg);
2127                 }
2128
2129                 internal override IntPtr DispatchMessage(ref MSG msg) {
2130                         return Win32DispatchMessage(ref msg);
2131                 }
2132
2133                 internal override bool SetZOrder(IntPtr hWnd, IntPtr AfterhWnd, bool Top, bool Bottom) {
2134                         if (Top) {
2135                                 Win32SetWindowPos(hWnd, SetWindowPosZOrder.HWND_TOP, 0, 0, 0, 0, SetWindowPosFlags.SWP_NOMOVE | SetWindowPosFlags.SWP_NOSIZE);
2136                                 return true;
2137                         } else if (!Bottom) {
2138                                 Win32SetWindowPos(hWnd, AfterhWnd, 0, 0, 0, 0, SetWindowPosFlags.SWP_NOMOVE | SetWindowPosFlags.SWP_NOSIZE);
2139                         } else {
2140                                 Win32SetWindowPos(hWnd, (IntPtr)SetWindowPosZOrder.HWND_BOTTOM, 0, 0, 0, 0, SetWindowPosFlags.SWP_NOMOVE | SetWindowPosFlags.SWP_NOSIZE);
2141                                 return true;
2142                         }
2143                         return false;
2144                 }
2145
2146                 internal override bool SetTopmost(IntPtr hWnd, bool Enabled) {
2147                         if (Enabled) {
2148                                 Win32SetWindowPos(hWnd, SetWindowPosZOrder.HWND_TOPMOST, 0, 0, 0, 0, SetWindowPosFlags.SWP_NOMOVE | SetWindowPosFlags.SWP_NOSIZE | SetWindowPosFlags.SWP_NOACTIVATE);
2149                                 return true;
2150                         } else {
2151                                 Win32SetWindowPos(hWnd, SetWindowPosZOrder.HWND_NOTOPMOST, 0, 0, 0, 0, SetWindowPosFlags.SWP_NOMOVE | SetWindowPosFlags.SWP_NOSIZE | SetWindowPosFlags.SWP_NOACTIVATE);
2152                                 return true;
2153                         }
2154                 }
2155
2156                 internal override bool SetOwner(IntPtr hWnd, IntPtr hWndOwner) {
2157                         Win32SetWindowLong(hWnd, WindowLong.GWL_HWNDPARENT, (uint) hWndOwner);
2158                         return true;
2159                 }
2160
2161                 internal override bool Text(IntPtr handle, string text) {
2162                         Win32SetWindowText(handle, text);
2163                         return true;
2164                 }
2165
2166                 internal override bool GetText(IntPtr handle, out string text) {
2167                         StringBuilder sb;
2168
2169                         sb = new StringBuilder(256);
2170                         Win32GetWindowText(handle, sb, sb.Capacity);
2171                         text = sb.ToString();
2172                         return true;
2173                 }
2174
2175                 internal override bool SetVisible (IntPtr handle, bool visible, bool activate)
2176                 {
2177                         if (visible) {
2178                                 Control c = Control.FromHandle (handle);
2179                                 if (c is Form) {
2180                                         Form f;
2181
2182                                         f = (Form)Control.FromHandle (handle);
2183                                         WindowPlacementFlags flags = WindowPlacementFlags.SW_SHOWNORMAL;
2184                                         switch (f.WindowState) {
2185                                                 case FormWindowState.Normal: flags = WindowPlacementFlags.SW_SHOWNORMAL; break;
2186                                                 case FormWindowState.Minimized: flags = WindowPlacementFlags.SW_MINIMIZE; break;
2187                                                 case FormWindowState.Maximized: flags = WindowPlacementFlags.SW_MAXIMIZE; break;
2188                                         }
2189
2190                                         if (!f.ActivateOnShow)
2191                                                 flags = WindowPlacementFlags.SW_SHOWNOACTIVATE;
2192
2193                                         Win32ShowWindow (handle, flags);
2194                                 }
2195                                 else {
2196                                         if (c.ActivateOnShow)
2197                                                 Win32ShowWindow (handle, WindowPlacementFlags.SW_SHOWNORMAL);
2198                                         else
2199                                                 Win32ShowWindow (handle, WindowPlacementFlags.SW_SHOWNOACTIVATE);
2200                                 }
2201                         }
2202                         else {
2203                                 Win32ShowWindow (handle, WindowPlacementFlags.SW_HIDE);
2204                         }
2205                         return true;
2206                 }
2207
2208                 internal override bool IsEnabled(IntPtr handle) {
2209                         return IsWindowEnabled (handle);
2210                 }
2211
2212                 internal override bool IsKeyLocked (VirtualKeys key)
2213                 {
2214                         return (Win32GetKeyState (key) & 1) == 1;
2215                 }
2216
2217                 internal override bool IsVisible(IntPtr handle) {
2218                         return IsWindowVisible (handle);
2219                 }
2220
2221                 internal override IntPtr SetParent(IntPtr handle, IntPtr parent) {
2222                         Control c = Control.FromHandle (handle);
2223                         if (parent == IntPtr.Zero) {
2224                                 if (!(c is Form)) {
2225                                         Win32ShowWindow(handle, WindowPlacementFlags.SW_HIDE);
2226                                 }
2227                         } else {
2228                                 if (!(c is Form)) {
2229                                         SetVisible (handle, c.is_visible, true);
2230                                 }
2231                         }
2232                         // The Win32SetParent is lame, it can very well move the window
2233                         // ref: http://groups.google.com/group/microsoft.public.vb.winapi/browse_thread/thread/1b82ccc54231ecee/afa82835bfc0422a%23afa82835bfc0422a
2234                         // Here we save the position before changing the parent, and if it has changed afterwards restore it.
2235                         // Another possibility would be to intercept WM_WINDOWPOSCHANGING and restore the coords there, but this would require plumbing in weird places
2236                         // (either inside Control or add handling to InternalWndProc)
2237                         // We also need to remove WS_CHILD if making the window parent-less, and add it if we're parenting it.
2238                         RECT rect, rect2;
2239                         IntPtr result;
2240                         WindowStyles style, new_style;
2241
2242                         Win32GetWindowRect (handle, out rect);
2243                         style = (WindowStyles) Win32GetWindowLong (handle, WindowLong.GWL_STYLE);
2244
2245                         if (parent == IntPtr.Zero) {
2246                                 new_style = style & ~WindowStyles.WS_CHILD;
2247                                 result = Win32SetParent (handle, FosterParent);
2248                         } else {
2249                                 new_style = style | WindowStyles.WS_CHILD;
2250                                 result = Win32SetParent (handle, parent);
2251                         }
2252                         if (style != new_style && c is Form) {
2253                                 Win32SetWindowLong (handle, WindowLong.GWL_STYLE, (uint) new_style);
2254                         }
2255                         Win32GetWindowRect (handle, out rect2);
2256                         if (rect.top != rect2.top && rect.left != rect2.left && c is Form) {
2257                                 Win32SetWindowPos (handle, IntPtr.Zero, rect.top, rect.left, rect.Width, rect.Height, SetWindowPosFlags.SWP_NOZORDER |  SetWindowPosFlags.SWP_NOREDRAW | SetWindowPosFlags.SWP_NOOWNERZORDER | SetWindowPosFlags.SWP_NOENDSCHANGING | SetWindowPosFlags.SWP_NOACTIVATE);
2258                         }
2259                         return result;
2260                 }
2261
2262                 // If we ever start using this, we should probably replace FosterParent with IntPtr.Zero
2263                 internal override IntPtr GetParent(IntPtr handle) {
2264                         return Win32GetParent(handle);
2265                 }
2266
2267                 // This is a nop on win32 and x11
2268                 internal override IntPtr GetPreviousWindow(IntPtr handle) {
2269                         return handle;
2270                 }
2271
2272                 internal override void GrabWindow(IntPtr hWnd, IntPtr ConfineToHwnd) {
2273                         grab_hwnd = hWnd;
2274                         Win32SetCapture(hWnd);
2275
2276                         if (ConfineToHwnd != IntPtr.Zero) {
2277                                 RECT window_rect;
2278                                 Win32GetWindowRect (ConfineToHwnd, out window_rect);
2279                                 Win32GetClipCursor (out clipped_cursor_rect);
2280                                 Win32ClipCursor (ref window_rect);
2281                         }
2282                 }
2283
2284                 internal override void GrabInfo(out IntPtr hWnd, out bool GrabConfined, out Rectangle GrabArea) {
2285                         hWnd = grab_hwnd;
2286                         GrabConfined = grab_confined;
2287                         GrabArea = grab_area;
2288                 }
2289
2290                 internal override void UngrabWindow(IntPtr hWnd) {
2291                         if (!(clipped_cursor_rect.top == 0 && clipped_cursor_rect.bottom == 0 && clipped_cursor_rect.left == 0 && clipped_cursor_rect.right == 0)) {
2292                                 Win32ClipCursor (ref clipped_cursor_rect);
2293                                 clipped_cursor_rect = new RECT ();
2294                         }
2295
2296                         Win32ReleaseCapture();
2297                         grab_hwnd = IntPtr.Zero;
2298                 }
2299
2300                 internal override bool CalculateWindowRect(ref Rectangle ClientRect, CreateParams cp, Menu menu, out Rectangle WindowRect) {
2301                         RECT    rect;
2302
2303                         rect.left=ClientRect.Left;
2304                         rect.top=ClientRect.Top;
2305                         rect.right=ClientRect.Right;
2306                         rect.bottom=ClientRect.Bottom;
2307
2308                         if (!Win32AdjustWindowRectEx(ref rect, cp.Style, menu != null, cp.ExStyle)) {
2309                                 WindowRect = new Rectangle(ClientRect.Left, ClientRect.Top, ClientRect.Width, ClientRect.Height);
2310                                 return false;
2311                         }
2312
2313                         WindowRect = new Rectangle(rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top);
2314                         return true;
2315                 }
2316
2317                 internal override void SetCursor(IntPtr window, IntPtr cursor) {
2318                         Win32SetCursor(cursor);
2319                         return;
2320                 }
2321
2322                 internal override void ShowCursor(bool show) {
2323                         Win32ShowCursor(show);
2324                 }
2325
2326                 internal override void OverrideCursor(IntPtr cursor) {
2327                         Win32SetCursor(cursor);
2328                 }
2329
2330                 internal override IntPtr DefineCursor(Bitmap bitmap, Bitmap mask, Color cursor_pixel, Color mask_pixel, int xHotSpot, int yHotSpot) {
2331                         IntPtr  cursor;
2332                         Bitmap  cursor_bitmap;
2333                         Bitmap  cursor_mask;
2334                         Byte[]  cursor_bits;
2335                         Byte[]  mask_bits;
2336                         Color   pixel;
2337                         int     width;
2338                         int     height;
2339
2340                         // Win32 only allows creation cursors of a certain size
2341                         if ((bitmap.Width != Win32GetSystemMetrics(SystemMetrics.SM_CXCURSOR)) || (bitmap.Width != Win32GetSystemMetrics(SystemMetrics.SM_CXCURSOR))) {
2342                                 cursor_bitmap = new Bitmap(bitmap, new Size(Win32GetSystemMetrics(SystemMetrics.SM_CXCURSOR), Win32GetSystemMetrics(SystemMetrics.SM_CXCURSOR)));
2343                                 cursor_mask = new Bitmap(mask, new Size(Win32GetSystemMetrics(SystemMetrics.SM_CXCURSOR), Win32GetSystemMetrics(SystemMetrics.SM_CXCURSOR)));
2344                         } else {
2345                                 cursor_bitmap = bitmap;
2346                                 cursor_mask = mask;
2347                         }
2348
2349                         width = cursor_bitmap.Width;
2350                         height = cursor_bitmap.Height;
2351
2352                         cursor_bits = new Byte[(width / 8) * height];
2353                         mask_bits = new Byte[(width / 8) * height];
2354
2355                         for (int y = 0; y < height; y++) {
2356                                 for (int x = 0; x < width; x++) {
2357                                         pixel = cursor_bitmap.GetPixel(x, y);
2358
2359                                         if (pixel == cursor_pixel) {
2360                                                 cursor_bits[y * width / 8 + x / 8] |= (byte)(0x80 >> (x % 8));
2361                                         }
2362
2363                                         pixel = cursor_mask.GetPixel(x, y);
2364
2365                                         if (pixel == mask_pixel) {
2366                                                 mask_bits[y * width / 8 + x / 8] |= (byte)(0x80 >> (x % 8));
2367                                         }
2368                                 }
2369                         }
2370
2371                         cursor = Win32CreateCursor(IntPtr.Zero, xHotSpot, yHotSpot, width, height, mask_bits, cursor_bits);
2372
2373                         return cursor;
2374                 }
2375
2376                 internal override Bitmap DefineStdCursorBitmap (StdCursor id)
2377                 {
2378                         // We load the cursor, create a bitmap, draw the cursor onto the bitmap and return the bitmap.
2379                         IntPtr cursor = DefineStdCursor (id);
2380                         // Windows only have one possible cursor size!
2381                         int width = Win32GetSystemMetrics (SystemMetrics.SM_CXCURSOR);
2382                         int height = Win32GetSystemMetrics (SystemMetrics.SM_CYCURSOR);
2383                         Bitmap bmp = new Bitmap (width, height);
2384                         Graphics gc = Graphics.FromImage (bmp);
2385                         IntPtr hdc = gc.GetHdc ();
2386                         Win32DrawIcon (hdc, 0, 0, cursor);
2387                         gc.ReleaseHdc (hdc);
2388                         gc.Dispose ();
2389                         return bmp;
2390                 }
2391
2392                 [MonoTODO("Define the missing cursors")]
2393                 internal override IntPtr DefineStdCursor(StdCursor id) {
2394                         switch(id) {
2395                                 case StdCursor.AppStarting:     return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_APPSTARTING);
2396                                 case StdCursor.Arrow:           return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);
2397                                 case StdCursor.Cross:           return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_CROSS);
2398                                 case StdCursor.Default:         return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);
2399                                 case StdCursor.Hand:            return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_HAND);
2400                                 case StdCursor.Help:            return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_HELP);
2401                                 case StdCursor.HSplit:          return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);          // FIXME
2402                                 case StdCursor.IBeam:           return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_IBEAM);
2403                                 case StdCursor.No:              return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_NO);
2404                                 case StdCursor.NoMove2D:        return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);          // FIXME
2405                                 case StdCursor.NoMoveHoriz:     return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);          // FIXME
2406                                 case StdCursor.NoMoveVert:      return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);          // FIXME
2407                                 case StdCursor.PanEast:         return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);          // FIXME
2408                                 case StdCursor.PanNE:           return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);          // FIXME
2409                                 case StdCursor.PanNorth:        return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);          // FIXME
2410                                 case StdCursor.PanNW:           return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);          // FIXME
2411                                 case StdCursor.PanSE:           return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);          // FIXME
2412                                 case StdCursor.PanSouth:        return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);          // FIXME
2413                                 case StdCursor.PanSW:           return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);          // FIXME
2414                                 case StdCursor.PanWest:         return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);          // FIXME
2415                                 case StdCursor.SizeAll:         return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_SIZEALL);
2416                                 case StdCursor.SizeNESW:        return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_SIZENESW);
2417                                 case StdCursor.SizeNS:          return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_SIZENS);
2418                                 case StdCursor.SizeNWSE:        return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_SIZENWSE);
2419                                 case StdCursor.SizeWE:          return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_SIZEWE);
2420                                 case StdCursor.UpArrow:         return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_UPARROW);
2421                                 case StdCursor.VSplit:          return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_ARROW);          // FIXME
2422                                 case StdCursor.WaitCursor:      return Win32LoadCursor(IntPtr.Zero, LoadCursorType.IDC_WAIT);
2423                         }
2424                         throw new NotImplementedException ();
2425                 }
2426
2427                 internal override void DestroyCursor(IntPtr cursor) {
2428                         if ((cursor.ToInt32() < (int)LoadCursorType.First) || (cursor.ToInt32() > (int)LoadCursorType.Last)) {
2429                                 Win32DestroyCursor(cursor);
2430                         }
2431                 }
2432
2433                 [MonoTODO]
2434                 internal override void GetCursorInfo(IntPtr cursor, out int width, out int height, out int hotspot_x, out int hotspot_y) {
2435                         ICONINFO ii = new ICONINFO ();
2436
2437                         if (!Win32GetIconInfo (cursor, out ii))
2438                                 throw new Win32Exception ();
2439
2440                         width = 20;
2441                         height = 20;
2442                         hotspot_x = ii.xHotspot;
2443                         hotspot_y = ii.yHotspot;
2444                 }
2445
2446                 internal override void SetCursorPos(IntPtr handle, int x, int y) {
2447                         Win32SetCursorPos(x, y);
2448                 }
2449
2450                 internal override Region GetClipRegion(IntPtr hwnd) {
2451                         Region region;
2452
2453                         region = new Region();
2454
2455                         Win32GetWindowRgn(hwnd, region.GetHrgn(Graphics.FromHwnd(hwnd)));
2456
2457                         return region;
2458                 }
2459
2460                 internal override void SetClipRegion(IntPtr hwnd, Region region) {
2461                         if (region == null)
2462                                 Win32SetWindowRgn (hwnd, IntPtr.Zero, true);
2463                         else
2464                                 Win32SetWindowRgn(hwnd, region.GetHrgn(Graphics.FromHwnd(hwnd)), true);
2465                 }
2466
2467                 internal override void EnableWindow(IntPtr handle, bool Enable) {
2468                         Win32EnableWindow(handle, Enable);
2469                 }
2470
2471                 internal override void EndLoop(System.Threading.Thread thread) {
2472                         // Nothing to do
2473                 }
2474
2475                 internal override object StartLoop(System.Threading.Thread thread) {
2476                         return null;
2477                 }
2478
2479                 internal override void SetModal(IntPtr handle, bool Modal) {
2480                         // we do nothing on Win32
2481                 }
2482
2483                 internal override void GetCursorPos(IntPtr handle, out int x, out int y) {
2484                         POINT   pt;
2485
2486                         Win32GetCursorPos(out pt);
2487
2488                         if (handle!=IntPtr.Zero) {
2489                                 Win32ScreenToClient(handle, ref pt);
2490                         }
2491
2492                         x=pt.x;
2493                         y=pt.y;
2494                 }
2495
2496                 internal override void ScreenToClient(IntPtr handle, ref int x, ref int y)
2497                 {
2498                         POINT pnt = new POINT();
2499
2500                         pnt.x = x;
2501                         pnt.y = y;
2502                         Win32ScreenToClient (handle, ref pnt);
2503
2504                         x = pnt.x;
2505                         y = pnt.y;
2506                 }
2507
2508                 internal override void ClientToScreen(IntPtr handle, ref int x, ref int y) {
2509                         POINT   pnt = new POINT();
2510
2511                         pnt.x = x;
2512                         pnt.y = y;
2513
2514                         Win32ClientToScreen(handle, ref pnt);
2515
2516                         x = pnt.x;
2517                         y = pnt.y;
2518                 }
2519
2520                 internal override void ScreenToMenu(IntPtr handle, ref int x, ref int y) {
2521                         RECT    rect;
2522
2523                         Win32GetWindowRect(handle, out rect);
2524                         x -= rect.left + SystemInformation.FrameBorderSize.Width;
2525                         y -= rect.top + SystemInformation.FrameBorderSize.Height;
2526
2527                         WindowStyles style = (WindowStyles) Win32GetWindowLong (handle, WindowLong.GWL_STYLE);
2528                         if (CreateParams.IsSet (style, WindowStyles.WS_CAPTION)) {
2529                                 y -= ThemeEngine.Current.CaptionHeight;
2530                         }
2531                 }
2532
2533                 internal override void MenuToScreen(IntPtr handle, ref int x, ref int y) {
2534                         RECT    rect;
2535
2536                         Win32GetWindowRect(handle, out rect);
2537                         x += rect.left + SystemInformation.FrameBorderSize.Width;
2538                         y += rect.top + SystemInformation.FrameBorderSize.Height + ThemeEngine.Current.CaptionHeight;
2539                         return;
2540                 }
2541
2542                 internal override void SendAsyncMethod (AsyncMethodData method)
2543                 {
2544                         Win32PostMessage(FosterParent, Msg.WM_ASYNC_MESSAGE, IntPtr.Zero, (IntPtr)GCHandle.Alloc (method));
2545                 }
2546
2547                 internal override void SetTimer (Timer timer)
2548                 {
2549                         int     index;
2550
2551                         index = timer.GetHashCode();
2552
2553                         lock (timer_list) {
2554                                 timer_list[index]=timer;
2555                         }
2556
2557                         if (Win32SetTimer(FosterParent, index, (uint)timer.Interval, IntPtr.Zero) != IntPtr.Zero)
2558                                 timer.window = FosterParent;
2559                         else
2560                                 timer.window = IntPtr.Zero;
2561                 }
2562
2563                 internal override void KillTimer (Timer timer)
2564                 {
2565                         int     index;
2566
2567                         index = timer.GetHashCode();
2568
2569                         Win32KillTimer(timer.window, index);
2570
2571                         lock (timer_list) {
2572                                 timer_list.Remove(index);
2573                         }
2574                 }
2575
2576                 internal override void CreateCaret(IntPtr hwnd, int width, int height) {
2577                         Win32CreateCaret(hwnd, IntPtr.Zero, width, height);
2578                         caret_visible = false;
2579                 }
2580
2581                 internal override void DestroyCaret(IntPtr hwnd) {
2582                         Win32DestroyCaret();
2583                 }
2584
2585                 internal override void SetCaretPos(IntPtr hwnd, int x, int y) {
2586                         Win32SetCaretPos(x, y);
2587                 }
2588
2589                 internal override void CaretVisible(IntPtr hwnd, bool visible) {
2590                         if (visible) {
2591                                 if (!caret_visible) {
2592                                         Win32ShowCaret(hwnd);
2593                                         caret_visible = true;
2594                                 }
2595                         } else {
2596                                 if (caret_visible) {
2597                                         Win32HideCaret(hwnd);
2598                                         caret_visible = false;
2599                                 }
2600                         }
2601                 }
2602
2603                 internal override IntPtr GetFocus() {
2604                         return Win32GetFocus();
2605                 }
2606
2607                 internal override void SetFocus(IntPtr hwnd) {
2608                         Win32SetFocus(hwnd);
2609                 }
2610
2611                 internal override IntPtr GetActive() {
2612                         return Win32GetActiveWindow();
2613                 }
2614
2615                 internal override bool GetFontMetrics(Graphics g, Font font, out int ascent, out int descent) {
2616                         IntPtr          dc;
2617                         IntPtr          prevobj;
2618                         TEXTMETRIC      tm;
2619
2620                         tm = new TEXTMETRIC();
2621
2622                         dc = Win32GetDC (IntPtr.Zero);
2623                         prevobj = Win32SelectObject (dc, font.ToHfont ());
2624
2625                         if (Win32GetTextMetrics (dc, ref tm) == false) {
2626                                 prevobj = Win32SelectObject (dc, prevobj);
2627                                 Win32DeleteObject (prevobj);
2628                                 Win32ReleaseDC (IntPtr.Zero, dc);
2629                                 ascent = 0;
2630                                 descent = 0;
2631                                 return false;
2632                         }
2633                         prevobj = Win32SelectObject (dc, prevobj);
2634                         Win32DeleteObject (prevobj);
2635                         Win32ReleaseDC (IntPtr.Zero, dc);
2636
2637                         ascent = tm.tmAscent;
2638                         descent = tm.tmDescent;
2639
2640                         return true;
2641                 }
2642
2643                 internal override void ScrollWindow(IntPtr hwnd, Rectangle rectangle, int XAmount, int YAmount, bool with_children) {
2644                         RECT    rect;
2645
2646                         rect = new RECT();
2647                         rect.left = rectangle.X;
2648                         rect.top = rectangle.Y;
2649                         rect.right = rectangle.Right;
2650                         rect.bottom = rectangle.Bottom;
2651
2652                         Win32ScrollWindowEx(hwnd, XAmount, YAmount, IntPtr.Zero, ref rect, IntPtr.Zero, IntPtr.Zero, ScrollWindowExFlags.SW_INVALIDATE | ScrollWindowExFlags.SW_ERASE | (with_children ? ScrollWindowExFlags.SW_SCROLLCHILDREN : ScrollWindowExFlags.SW_NONE));
2653                         Win32UpdateWindow(hwnd);
2654                 }
2655
2656                 internal override void ScrollWindow(IntPtr hwnd, int XAmount, int YAmount, bool with_children) {
2657                         Win32ScrollWindowEx(hwnd, XAmount, YAmount, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, ScrollWindowExFlags.SW_INVALIDATE | ScrollWindowExFlags.SW_ERASE | (with_children ? ScrollWindowExFlags.SW_SCROLLCHILDREN : ScrollWindowExFlags.SW_NONE));
2658                 }
2659
2660                 internal override bool SystrayAdd(IntPtr hwnd, string tip, Icon icon, out ToolTip tt) {
2661                         NOTIFYICONDATA  nid;
2662
2663                         nid = new NOTIFYICONDATA();
2664
2665                         nid.cbSize = (uint)Marshal.SizeOf(nid);
2666                         nid.hWnd = hwnd;
2667                         nid.uID = 1;
2668                         nid.uCallbackMessage = (uint)Msg.WM_USER;
2669                         nid.uFlags = NotifyIconFlags.NIF_MESSAGE;
2670
2671                         if (tip != null) {
2672                                 nid.szTip = tip;
2673                                 nid.uFlags |= NotifyIconFlags.NIF_TIP;
2674                         }
2675
2676                         if (icon != null) {
2677                                 nid.hIcon = icon.Handle;
2678                                 nid.uFlags |= NotifyIconFlags.NIF_ICON;
2679                         }
2680
2681                         tt = null;
2682
2683                         return Win32Shell_NotifyIcon(NotifyIconMessage.NIM_ADD, ref nid);
2684                 }
2685
2686                 internal override bool SystrayChange(IntPtr hwnd, string tip, Icon icon, ref ToolTip tt) {
2687                         NOTIFYICONDATA  nid;
2688
2689                         nid = new NOTIFYICONDATA();
2690
2691                         nid.cbSize = (uint)Marshal.SizeOf(nid);
2692                         nid.hIcon = icon.Handle;
2693                         nid.hWnd = hwnd;
2694                         nid.uID = 1;
2695                         nid.uCallbackMessage = (uint)Msg.WM_USER;
2696                         nid.uFlags = NotifyIconFlags.NIF_MESSAGE;
2697
2698                         if (tip != null) {
2699                                 nid.szTip = tip;
2700                                 nid.uFlags |= NotifyIconFlags.NIF_TIP;
2701                         }
2702
2703                         if (icon != null) {
2704                                 nid.hIcon = icon.Handle;
2705                                 nid.uFlags |= NotifyIconFlags.NIF_ICON;
2706                         }
2707
2708                         return Win32Shell_NotifyIcon(NotifyIconMessage.NIM_MODIFY, ref nid);
2709                 }
2710
2711                 internal override void SystrayRemove(IntPtr hwnd, ref ToolTip tt) {
2712                         NOTIFYICONDATA  nid;
2713
2714                         nid = new NOTIFYICONDATA();
2715
2716                         nid.cbSize = (uint)Marshal.SizeOf(nid);
2717                         nid.hWnd = hwnd;
2718                         nid.uID = 1;
2719                         nid.uFlags = 0;
2720
2721                         Win32Shell_NotifyIcon(NotifyIconMessage.NIM_DELETE, ref nid);
2722                 }
2723
2724 #if NET_2_0
2725                 internal override void SystrayBalloon(IntPtr hwnd, int timeout, string title, string text, ToolTipIcon icon)
2726                 {
2727                         NOTIFYICONDATA  nid;
2728
2729                         nid = new NOTIFYICONDATA();
2730
2731                         nid.cbSize = (uint)Marshal.SizeOf(nid);
2732                         nid.hWnd = hwnd;
2733                         nid.uID = 1;
2734                         nid.uFlags = NotifyIconFlags.NIF_INFO;
2735                         nid.uTimeoutOrVersion = timeout;
2736                         nid.szInfoTitle = title;
2737                         nid.szInfo = text;
2738                         nid.dwInfoFlags = icon;
2739
2740                         Win32Shell_NotifyIcon(NotifyIconMessage.NIM_MODIFY, ref nid);
2741                 }
2742 #endif
2743
2744                 internal override void SetBorderStyle(IntPtr handle, FormBorderStyle border_style) {
2745                         // Nothing to do on Win32
2746                 }
2747
2748                 internal override void SetMenu(IntPtr handle, Menu menu) {
2749                         // Trigger WM_NCCALC
2750                         Win32SetWindowPos(handle, IntPtr.Zero, 0, 0, 0, 0, SetWindowPosFlags.SWP_FRAMECHANGED | SetWindowPosFlags.SWP_NOMOVE | SetWindowPosFlags.SWP_NOSIZE);
2751                 }
2752
2753                 internal override Point GetMenuOrigin(IntPtr handle) {
2754                         Form form = Control.FromHandle (handle) as Form;
2755
2756                         if (form != null) {
2757                                 if (form.FormBorderStyle == FormBorderStyle.None)
2758                                         return Point.Empty;
2759
2760                                 int bordersize = (form.Width - form.ClientSize.Width) / 2;
2761
2762                                 if (form.FormBorderStyle == FormBorderStyle.FixedToolWindow || form.FormBorderStyle == FormBorderStyle.SizableToolWindow)
2763                                         return new Point (bordersize, bordersize + SystemInformation.ToolWindowCaptionHeight);
2764                                 else
2765                                         return new Point (bordersize, bordersize + SystemInformation.CaptionHeight);
2766                         }
2767
2768                         return new Point(SystemInformation.FrameBorderSize.Width, SystemInformation.FrameBorderSize.Height + ThemeEngine.Current.CaptionHeight);
2769                 }
2770
2771                 internal override void SetIcon(IntPtr hwnd, Icon icon) {
2772                         Win32SendMessage(hwnd, Msg.WM_SETICON, (IntPtr)1, icon == null ? IntPtr.Zero : icon.Handle);    // 1 = large icon (0 would be small)
2773                 }
2774
2775                 internal override void ClipboardClose(IntPtr handle) {
2776                         if (handle != clip_magic) {
2777                                 throw new ArgumentException("handle is not a valid clipboard handle");
2778                         }
2779                         Win32CloseClipboard();
2780                 }
2781
2782                 internal override int ClipboardGetID(IntPtr handle, string format) {
2783                         if (handle != clip_magic) {
2784                                 throw new ArgumentException("handle is not a valid clipboard handle");
2785                         }
2786                         if (format == "Text" ) return 1;
2787                         else if (format == "Bitmap" ) return 2;
2788                         else if (format == "MetaFilePict" ) return 3;
2789                         else if (format == "SymbolicLink" ) return 4;
2790                         else if (format == "DataInterchangeFormat" ) return 5;
2791                         else if (format == "Tiff" ) return 6;
2792                         else if (format == "OEMText" ) return 7;
2793                         else if (format == "DeviceIndependentBitmap" ) return 8;
2794                         else if (format == "Palette" ) return 9;
2795                         else if (format == "PenData" ) return 10;
2796                         else if (format == "RiffAudio" ) return 11;
2797                         else if (format == "WaveAudio" ) return 12;
2798                         else if (format == "UnicodeText" ) return 13;
2799                         else if (format == "EnhancedMetafile" ) return 14;
2800                         else if (format == "FileDrop" ) return 15;
2801                         else if (format == "Locale" ) return 16;
2802
2803                         return (int)Win32RegisterClipboardFormat(format);
2804                 }
2805
2806                 internal override IntPtr ClipboardOpen(bool primary_selection) {
2807                         // Win32 does not have primary selection
2808                         Win32OpenClipboard(FosterParent);
2809                         return clip_magic;
2810                 }
2811
2812                 internal override int[] ClipboardAvailableFormats(IntPtr handle) {
2813                         uint    format;
2814                         int[]   result;
2815                         int     count;
2816
2817                         if (handle != clip_magic) {
2818                                 return null;
2819                         }
2820
2821                         // Count first
2822                         count = 0;
2823                         format = 0;
2824                         do {
2825                                 format = Win32EnumClipboardFormats(format);
2826                                 if (format != 0) {
2827                                         count++;
2828                                 }
2829                         } while (format != 0);
2830
2831                         // Now assign
2832                         result = new int[count];
2833                         count = 0;
2834                         format = 0;
2835                         do {
2836                                 format = Win32EnumClipboardFormats(format);
2837                                 if (format != 0) {
2838                                         result[count++] = (int)format;
2839                                 }
2840                         } while (format != 0);
2841
2842                         return result;
2843                 }
2844
2845
2846                 internal override object ClipboardRetrieve(IntPtr handle, int type, XplatUI.ClipboardToObject converter) {
2847                         IntPtr  hmem;
2848                         IntPtr  data;
2849                         object  obj;
2850
2851                         if (handle != clip_magic) {
2852                                 throw new ArgumentException("handle is not a valid clipboard handle");
2853                         }
2854
2855                         hmem = Win32GetClipboardData((uint)type);
2856                         if (hmem == IntPtr.Zero) {
2857                                 return null;
2858                         }
2859
2860                         data = Win32GlobalLock(hmem);
2861                         if (data == IntPtr.Zero) {
2862                                 uint error = Win32GetLastError();
2863                                 Console.WriteLine("Error: {0}", error);
2864                                 return null;
2865                         }
2866
2867                         obj = null;
2868
2869                         if (type == DataFormats.GetFormat(DataFormats.Rtf).Id) {
2870                                 obj = AnsiToString(data);
2871                         } else switch ((ClipboardFormats)type) {
2872                                 case ClipboardFormats.CF_TEXT: {
2873                                         obj = AnsiToString(data);
2874                                         break;
2875                                 }
2876
2877                                 case ClipboardFormats.CF_DIB: {
2878                                         obj = DIBtoImage(data);
2879                                         break;
2880                                 }
2881
2882                                 case ClipboardFormats.CF_UNICODETEXT: {
2883                                         obj = UnicodeToString(data);
2884                                         break;
2885                                 }
2886
2887                                 default: {
2888                                         if (converter != null && !converter(type, data, out obj)) {
2889                                                 obj = null;
2890                                         }
2891                                         break;
2892                                 }
2893                         }
2894                         Win32GlobalUnlock(hmem);
2895
2896                         return obj;
2897
2898                 }
2899
2900                 internal override void ClipboardStore(IntPtr handle, object obj, int type, XplatUI.ObjectToClipboard converter) {
2901                         byte[]  data = null;
2902
2903                         if (handle != clip_magic) {
2904                                 throw new ArgumentException("handle is not a valid clipboard handle");
2905                         }
2906
2907                         if (obj == null) {
2908                                 // Just clear it
2909                                 if (!Win32EmptyClipboard())
2910                                         throw new ExternalException("Win32EmptyClipboard");
2911                                 return;
2912                         }
2913
2914                         if (type == -1) {
2915                                 if (obj is string) {
2916                                         type = (int)ClipboardFormats.CF_UNICODETEXT;
2917                                 } else if (obj is Image) {
2918                                         type = (int)ClipboardFormats.CF_DIB;
2919                                 }
2920                         }
2921
2922                         if (type == DataFormats.GetFormat(DataFormats.Rtf).Id) {
2923                                 data = StringToAnsi ((string)obj);
2924                         } else switch((ClipboardFormats)type) {
2925                                 case ClipboardFormats.CF_UNICODETEXT: {
2926                                         data = StringToUnicode ((string)obj);
2927                                         break;
2928                                 }
2929
2930                                 case ClipboardFormats.CF_TEXT: {
2931                                         data = StringToAnsi ((string)obj);
2932                                         break;
2933                                 }
2934
2935                                 case ClipboardFormats.CF_BITMAP:
2936                                 case ClipboardFormats.CF_DIB: {
2937                                         data = ImageToDIB ((Image)obj);
2938                                         type = (int)ClipboardFormats.CF_DIB;
2939                                         break;
2940                                 }
2941
2942                                 default: {
2943                                         if (converter != null && !converter(ref type, obj, out data)) {
2944                                                 data = null; // ensure that a failed conversion leaves null.
2945                                         }
2946                                         break;
2947                                 }
2948                         }
2949                         if (data != null) {
2950                                 SetClipboardData ((uint)type, data);
2951                         }
2952                 }
2953
2954                 internal static byte[] StringToUnicode (string text)
2955                 {
2956                         return Encoding.Unicode.GetBytes (text + "\0");
2957                 }
2958
2959                 internal static byte[] StringToAnsi (string text)
2960                 {
2961                         // FIXME, follow the behaviour of the previous code using UTF-8,
2962                         // but this should be 'ANSI' on Windows, i.e. the current code page.
2963                         // Does Encoding.Default work on Windows?
2964                         return Encoding.UTF8.GetBytes (text + "\0");
2965                 }
2966
2967                 private void SetClipboardData (uint type, byte[] data)
2968                 {
2969                         if (data.Length == 0)
2970                                 // Shouldn't call Win32SetClipboard with NULL, as, from MSDN:
2971                                 // "This parameter can be NULL, indicating that the window provides data
2972                                 //  in the specified clipboard format (renders the format) upon request."
2973                                 // and I don't think we support that...
2974                                 // Note this is unrelated to the fact that passing a null obj to
2975                                 // ClipboardStore is actually a request to empty the clipboard!
2976                                 return;
2977                         IntPtr hmem = CopyToMoveableMemory (data);
2978                         if (hmem == IntPtr.Zero)
2979                                 // As above, should not call with null.
2980                                 // (Not that CopyToMoveableMemory should ever return null!)
2981                                 throw new ExternalException ("CopyToMoveableMemory failed.");
2982                         if (Win32SetClipboardData (type, hmem) == IntPtr.Zero)
2983                                 throw new ExternalException ("Win32SetClipboardData");
2984                 }
2985
2986                 /// <summary>
2987                 /// Creates a memory block with GlobalAlloc(GMEM_MOVEABLE), copies the data
2988                 /// into it, and returns the handle to the memory.
2989                 /// </summary>
2990                 /// -
2991                 /// <param name="data">The data.  Must not be null or zero-length &#x2014;
2992                 /// see the exception notes.</param>
2993                 /// -
2994                 /// <returns>The *handle* to the allocated GMEM_MOVEABLE block.</returns>
2995                 /// -
2996                 /// <exception cref="T:System.ArgumentException">The data was null or zero
2997                 /// length.  This is disallowed since a zero length allocation can't be made
2998                 /// </exception>
2999                 /// <exception cref="T:System.ComponentModel.Win32Exception">The allocation,
3000                 /// or locking (handle->pointer) failed.
3001                 /// Either out of memory or the handle table is full (256 max currently).
3002                 /// Note Win32Exception is a subclass of ExternalException so this is OK in
3003                 /// the documented Clipboard interface.
3004                 /// </exception>
3005                 internal static IntPtr CopyToMoveableMemory (byte[] data)
3006                 {
3007                         if (data == null || data.Length == 0)
3008                                 // detect this before GlobalAlloc does.
3009                                 throw new ArgumentException ("Can't create a zero length memory block.");
3010
3011                         IntPtr hmem = Win32GlobalAlloc (GAllocFlags.GMEM_MOVEABLE | GAllocFlags.GMEM_DDESHARE, data.Length);
3012                         if (hmem == IntPtr.Zero)
3013                                 throw new Win32Exception ();
3014                         IntPtr hmem_ptr = Win32GlobalLock (hmem);
3015                         if (hmem_ptr == IntPtr.Zero) // If the allocation was valid this shouldn't occur.
3016                                 throw new Win32Exception ();
3017                         Marshal.Copy (data, 0, hmem_ptr, data.Length);
3018                         Win32GlobalUnlock (hmem);
3019                         return hmem;
3020                 }
3021
3022
3023                 internal override void SetAllowDrop(IntPtr hwnd, bool allowed) {
3024                         if (allowed) {
3025                                 Win32DnD.RegisterDropTarget(hwnd);
3026                         } else {
3027                                 Win32DnD.UnregisterDropTarget(hwnd);
3028                         }
3029                 }
3030
3031                 internal override DragDropEffects StartDrag(IntPtr hwnd, object data, DragDropEffects allowedEffects) {
3032                         return Win32DnD.StartDrag(hwnd, data, allowedEffects);
3033                 }
3034
3035                 // XXX this doesn't work at all for FrameStyle.Dashed - it draws like Thick, and in the Thick case
3036                 // the corners are drawn incorrectly.
3037                 internal override void DrawReversibleFrame (Rectangle rectangle, Color backColor, FrameStyle style) {
3038                         IntPtr          hdc;
3039                         IntPtr          pen;
3040                         IntPtr          oldpen;
3041                         COLORREF        clrRef = new COLORREF();
3042
3043                         // If we want the standard hatch pattern we would
3044                         // need to create a brush
3045
3046                         clrRef.R = backColor.R;
3047                         clrRef.G = backColor.G;
3048                         clrRef.B = backColor.B;
3049
3050                         // Grab a pen
3051                         pen = Win32CreatePen (style == FrameStyle.Thick ? PenStyle.PS_SOLID : PenStyle.PS_DASH,
3052                                               style == FrameStyle.Thick ? 4 : 2, ref clrRef);
3053
3054                         hdc = Win32GetDC(IntPtr.Zero);
3055                         Win32SetROP2(hdc, ROP2DrawMode.R2_NOT);
3056                         oldpen = Win32SelectObject(hdc, pen);
3057
3058                         Win32MoveToEx(hdc, rectangle.Left, rectangle.Top, IntPtr.Zero);
3059                         if ((rectangle.Width > 0) && (rectangle.Height > 0)) {
3060                                 Win32LineTo(hdc, rectangle.Right, rectangle.Top);
3061                                 Win32LineTo(hdc, rectangle.Right, rectangle.Bottom);
3062                                 Win32LineTo(hdc, rectangle.Left, rectangle.Bottom);
3063                                 Win32LineTo(hdc, rectangle.Left, rectangle.Top);
3064                         } else {
3065                                 if (rectangle.Width > 0) {
3066                                         Win32LineTo(hdc, rectangle.Right, rectangle.Top);
3067                                 } else {
3068                                         Win32LineTo(hdc, rectangle.Left, rectangle.Bottom);
3069                                 }
3070                         }
3071
3072                         Win32SelectObject(hdc, oldpen);
3073                         Win32DeleteObject(pen);
3074
3075                         Win32ReleaseDC(IntPtr.Zero, hdc);
3076                 }
3077
3078                 internal override void DrawReversibleLine(Point start, Point end, Color backColor) {
3079                         IntPtr          hdc;
3080                         IntPtr          pen;
3081                         IntPtr          oldpen;
3082                         POINT           pt;
3083                         COLORREF        clrRef = new COLORREF();
3084
3085                         pt = new POINT();
3086                         pt.x = 0;
3087                         pt.y = 0;
3088                         Win32ClientToScreen(IntPtr.Zero, ref pt);
3089
3090                         // If we want the standard hatch pattern we would
3091                         // need to create a brush
3092
3093                         clrRef.R = backColor.R;
3094                         clrRef.G = backColor.G;
3095                         clrRef.B = backColor.B;
3096
3097                         // Grab a pen
3098                         pen = Win32CreatePen(PenStyle.PS_SOLID, 1, ref clrRef);
3099
3100                         hdc = Win32GetDC(IntPtr.Zero);
3101                         Win32SetROP2(hdc, ROP2DrawMode.R2_NOT);
3102                         oldpen = Win32SelectObject(hdc, pen);
3103
3104                         Win32MoveToEx(hdc, pt.x + start.X, pt.y + start.Y, IntPtr.Zero);
3105                         Win32LineTo(hdc, pt.x + end.X, pt.y + end.Y);
3106
3107                         Win32SelectObject(hdc, oldpen);
3108                         Win32DeleteObject(pen);
3109
3110                         Win32ReleaseDC(IntPtr.Zero, hdc);
3111                 }
3112
3113                 internal override void FillReversibleRectangle (Rectangle rectangle, Color backColor)
3114                 {
3115                         RECT    rect;
3116
3117                         rect = new RECT();
3118                         rect.left = rectangle.Left;
3119                         rect.top = rectangle.Top;
3120                         rect.right = rectangle.Right;
3121                         rect.bottom = rectangle.Bottom;
3122
3123                         IntPtr          hdc;
3124                         IntPtr          brush;
3125                         IntPtr          oldbrush;
3126                         COLORREF        clrRef = new COLORREF();
3127
3128                         clrRef.R = backColor.R;
3129                         clrRef.G = backColor.G;
3130                         clrRef.B = backColor.B;
3131
3132                         // Grab a brush
3133                         brush = Win32CreateSolidBrush (clrRef);
3134
3135                         hdc = Win32GetDC(IntPtr.Zero);
3136                         oldbrush = Win32SelectObject(hdc, brush);
3137
3138                         Win32PatBlt (hdc, rectangle.Left, rectangle.Top, rectangle.Width, rectangle.Height, PatBltRop.DSTINVERT);
3139
3140                         Win32SelectObject(hdc, oldbrush);
3141                         Win32DeleteObject(brush);
3142
3143                         Win32ReleaseDC(IntPtr.Zero, hdc);
3144                 }
3145
3146                 internal override void DrawReversibleRectangle(IntPtr handle, Rectangle rect, int line_width) {
3147                         IntPtr          hdc;
3148                         IntPtr          pen;
3149                         IntPtr          oldpen;
3150                         POINT           pt;
3151
3152                         pt = new POINT();
3153                         pt.x = 0;
3154                         pt.y = 0;
3155                         Win32ClientToScreen(handle, ref pt);
3156
3157                         // If we want the standard hatch pattern we would
3158                         // need to create a brush
3159
3160                         // Grab a pen
3161                         pen = Win32CreatePen(PenStyle.PS_SOLID, line_width, IntPtr.Zero);
3162
3163                         hdc = Win32GetDC(IntPtr.Zero);
3164                         Win32SetROP2(hdc, ROP2DrawMode.R2_NOT);
3165                         oldpen = Win32SelectObject(hdc, pen);
3166
3167                         Control c = Control.FromHandle (handle);
3168                         if (c != null) {
3169                                 RECT window_rect;
3170                                 Win32GetWindowRect (c.Handle, out window_rect);
3171                                 Region r = new Region (new Rectangle(window_rect.left, window_rect.top, window_rect.right - window_rect.left, window_rect.bottom - window_rect.top));
3172                                 Win32ExtSelectClipRgn(hdc, r.GetHrgn (Graphics.FromHdc (hdc)), (int) ClipCombineMode.RGN_AND);
3173                         }
3174
3175                         Win32MoveToEx(hdc, pt.x + rect.Left, pt.y + rect.Top, IntPtr.Zero);
3176                         if ((rect.Width > 0) && (rect.Height > 0)) {
3177                                 Win32LineTo(hdc, pt.x + rect.Right, pt.y + rect.Top);
3178                                 Win32LineTo(hdc, pt.x + rect.Right, pt.y + rect.Bottom);
3179                                 Win32LineTo(hdc, pt.x + rect.Left, pt.y + rect.Bottom);
3180                                 Win32LineTo(hdc, pt.x + rect.Left, pt.y + rect.Top);
3181                         } else {
3182                                 if (rect.Width > 0) {
3183                                         Win32LineTo(hdc, pt.x + rect.Right, pt.y + rect.Top);
3184                                 } else {
3185                                         Win32LineTo(hdc, pt.x + rect.Left, pt.y + rect.Bottom);
3186                                 }
3187                         }
3188
3189                         Win32SelectObject(hdc, oldpen);
3190                         Win32DeleteObject(pen);
3191                         if (c != null)
3192                                 Win32ExtSelectClipRgn(hdc, IntPtr.Zero, (int) ClipCombineMode.RGN_COPY);
3193
3194                         Win32ReleaseDC(IntPtr.Zero, hdc);
3195                 }
3196
3197                 internal override SizeF GetAutoScaleSize(Font font) {
3198                         Graphics        g;
3199                         float           width;
3200                         string          magic_string = "The quick brown fox jumped over the lazy dog.";
3201                         double          magic_number = 44.549996948242189;
3202
3203                         g = Graphics.FromHwnd(FosterParent);
3204
3205                         width = (float) (g.MeasureString (magic_string, font).Width / magic_number);
3206                         return new SizeF(width, font.Height);
3207                 }
3208
3209                 internal override IntPtr SendMessage (IntPtr hwnd, Msg message, IntPtr wParam, IntPtr lParam) {
3210                         return Win32SendMessage(hwnd, message, wParam, lParam);
3211                 }
3212
3213                 internal override bool PostMessage (IntPtr hwnd, Msg message, IntPtr wParam, IntPtr lParam) {
3214                         return Win32PostMessage(hwnd, message, wParam, lParam);
3215                 }
3216
3217                 internal override int SendInput (IntPtr hwnd, Queue keys) {
3218                         INPUT[] inputs = new INPUT[keys.Count];
3219                         const Int32 INPUT_KEYBOARD = 1;
3220                         uint returns = 0;
3221                         int i = 0;
3222                         while (keys.Count > 0) {
3223                                 MSG msg = (MSG)keys.Dequeue();
3224
3225
3226                                 inputs[i].ki.wScan = 0;
3227                                 inputs[i].ki.time = 0;
3228                                 inputs[i].ki.dwFlags = (Int32)(msg.message == Msg.WM_KEYUP ? InputFlags.KEYEVENTF_KEYUP : 0);
3229                                 inputs[i].ki.wVk = (short)msg.wParam.ToInt32();
3230                                 inputs[i].type = INPUT_KEYBOARD;
3231                                 i++;
3232                         }
3233                         returns = Win32SendInput((UInt32)inputs.Length, inputs, Marshal.SizeOf(typeof(INPUT)));
3234
3235                         return (int) returns;
3236                 }
3237
3238                 internal override int KeyboardSpeed {
3239                         get {
3240                                 int speed = 0;
3241                                 Win32SystemParametersInfo(SPIAction.SPI_GETKEYBOARDSPEED, 0, ref speed, 0);
3242                                 //
3243                                 // Return values range from 0 to 31 which map to 2.5 to 30 repetitions per second.
3244                                 //
3245                                 return speed;
3246                         }
3247                 }
3248
3249                 internal override int KeyboardDelay {
3250                         get {
3251                                 int delay = 1;
3252                                 Win32SystemParametersInfo(SPIAction.SPI_GETKEYBOARDDELAY, 0, ref delay, 0);
3253                                 //
3254                                 // Return values must range from 0 to 4, 0 meaning 250ms,
3255                                 // and 4 meaning 1000 ms.
3256                                 //
3257                                 return delay;
3258                         }
3259                 }
3260
3261                 private class WinBuffer
3262                 {
3263                         public IntPtr hdc;
3264                         public IntPtr bitmap;
3265
3266                         public WinBuffer (IntPtr hdc, IntPtr bitmap)
3267                         {
3268                                 this.hdc = hdc;
3269                                 this.bitmap = bitmap;
3270                         }
3271                 }
3272
3273                 internal override void CreateOffscreenDrawable (IntPtr handle, int width, int height, out object offscreen_drawable)
3274                 {
3275                         Graphics destG = Graphics.FromHwnd (handle);
3276                         IntPtr destHdc = destG.GetHdc ();
3277
3278                         IntPtr srcHdc = Win32CreateCompatibleDC (destHdc);
3279                         IntPtr srcBmp = Win32CreateCompatibleBitmap (destHdc, width, height);
3280                         Win32SelectObject (srcHdc, srcBmp);
3281
3282                         offscreen_drawable = new WinBuffer (srcHdc, srcBmp);
3283
3284                         destG.ReleaseHdc (destHdc);
3285                 }
3286
3287                 internal override Graphics GetOffscreenGraphics (object offscreen_drawable)
3288                 {
3289                         return Graphics.FromHdc (((WinBuffer)offscreen_drawable).hdc);
3290                 }
3291
3292                 internal override void BlitFromOffscreen (IntPtr dest_handle, Graphics dest_dc, object offscreen_drawable, Graphics offscreen_dc, Rectangle r)
3293                 {
3294                         WinBuffer wb = (WinBuffer)offscreen_drawable;
3295
3296                         IntPtr destHdc = dest_dc.GetHdc ();
3297                         Win32BitBlt (destHdc, r.Left, r.Top, r.Width, r.Height, wb.hdc, r.Left, r.Top, TernaryRasterOperations.SRCCOPY);
3298                         dest_dc.ReleaseHdc (destHdc);
3299                 }
3300
3301                 internal override void DestroyOffscreenDrawable (object offscreen_drawable)
3302                 {
3303                         WinBuffer wb = (WinBuffer)offscreen_drawable;
3304
3305                         Win32DeleteObject (wb.bitmap);
3306                         Win32DeleteDC (wb.hdc);
3307                 }
3308
3309                 internal override void SetForegroundWindow (IntPtr handle)
3310                 {
3311                         Win32SetForegroundWindow(handle);
3312                 }
3313
3314                 internal override event EventHandler Idle;
3315                 #endregion      // Public Static Methods
3316
3317                 #region Win32 Imports
3318                 [DllImport ("kernel32.dll", EntryPoint="GetLastError", CallingConvention=CallingConvention.StdCall)]
3319                 private extern static uint Win32GetLastError();
3320
3321                 [DllImport ("user32.dll", EntryPoint="CreateWindowExW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3322                 internal extern static IntPtr Win32CreateWindow(WindowExStyles dwExStyle, string lpClassName, string lpWindowName, WindowStyles dwStyle, int x, int y, int nWidth, int nHeight, IntPtr hWndParent, IntPtr hMenu, IntPtr hInstance, IntPtr lParam);
3323
3324                 [DllImport ("user32.dll", EntryPoint="DestroyWindow", CallingConvention=CallingConvention.StdCall)]
3325                 internal extern static bool Win32DestroyWindow(IntPtr hWnd);
3326
3327                 [DllImport ("user32.dll", EntryPoint="PeekMessageW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3328                 internal extern static bool Win32PeekMessage(ref MSG msg, IntPtr hWnd, int wFilterMin, int wFilterMax, uint flags);
3329
3330                 [DllImport ("user32.dll", EntryPoint="GetMessageW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3331                 internal extern static bool Win32GetMessage(ref MSG msg, IntPtr hWnd, int wFilterMin, int wFilterMax);
3332
3333                 [DllImport ("user32.dll", EntryPoint="TranslateMessage", CallingConvention=CallingConvention.StdCall)]
3334                 internal extern static bool Win32TranslateMessage(ref MSG msg);
3335
3336                 [DllImport ("user32.dll", EntryPoint="DispatchMessageW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3337                 internal extern static IntPtr Win32DispatchMessage(ref MSG msg);
3338
3339                 [DllImport ("user32.dll", EntryPoint="MoveWindow", CallingConvention=CallingConvention.StdCall)]
3340                 internal extern static bool Win32MoveWindow(IntPtr hWnd, int x, int y, int width, int height, bool repaint);
3341
3342                 [DllImport ("user32.dll", EntryPoint="SetWindowPos", CallingConvention=CallingConvention.StdCall)]
3343                 internal extern static bool Win32SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int cx, int cy, SetWindowPosFlags Flags);
3344
3345                 [DllImport ("user32.dll", EntryPoint="SetWindowPos", CallingConvention=CallingConvention.StdCall)]
3346                 internal extern static bool Win32SetWindowPos(IntPtr hWnd, SetWindowPosZOrder pos, int x, int y, int cx, int cy, SetWindowPosFlags Flags);
3347
3348                 [DllImport ("user32.dll", EntryPoint="SetWindowTextW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3349                 internal extern static bool Win32SetWindowText(IntPtr hWnd, string lpString);
3350
3351                 [DllImport ("user32.dll", EntryPoint="GetWindowTextW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3352                 internal extern static bool Win32GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
3353
3354                 [DllImport ("user32.dll", EntryPoint="SetParent", CallingConvention=CallingConvention.StdCall)]
3355                 internal extern static IntPtr Win32SetParent(IntPtr hWnd, IntPtr hParent);
3356
3357                 [DllImport ("user32.dll", EntryPoint="RegisterClassW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3358                 private extern static bool Win32RegisterClass(ref WNDCLASS wndClass);
3359
3360                 [DllImport ("user32.dll", EntryPoint="LoadCursorW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3361                 private extern static IntPtr Win32LoadCursor(IntPtr hInstance, LoadCursorType type);
3362
3363                 [DllImport ("user32.dll", EntryPoint="ShowCursor", CallingConvention=CallingConvention.StdCall)]
3364                 private extern static IntPtr Win32ShowCursor(bool bShow);
3365
3366                 [DllImport ("user32.dll", EntryPoint="SetCursor", CallingConvention=CallingConvention.StdCall)]
3367                 private extern static IntPtr Win32SetCursor(IntPtr hCursor);
3368
3369                 [DllImport ("user32.dll", EntryPoint="CreateCursor", CallingConvention=CallingConvention.StdCall)]
3370                 private extern static IntPtr Win32CreateCursor(IntPtr hInstance, int xHotSpot, int yHotSpot, int nWidth, int nHeight, Byte[] pvANDPlane, Byte[] pvORPlane);
3371
3372                 [DllImport ("user32.dll", EntryPoint="DestroyCursor", CallingConvention=CallingConvention.StdCall)]
3373                 private extern static bool Win32DestroyCursor(IntPtr hCursor);
3374
3375                 [DllImport ("user32.dll", EntryPoint = "DrawIcon", CallingConvention = CallingConvention.StdCall)]
3376                 private extern static bool Win32DrawIcon (IntPtr hDC, int X, int Y, IntPtr hIcon);
3377
3378                 [DllImport ("user32.dll", EntryPoint="DefWindowProcW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3379                 private extern static IntPtr Win32DefWindowProc(IntPtr hWnd, Msg Msg, IntPtr wParam, IntPtr lParam);
3380
3381                 //[DllImport ("user32.dll", EntryPoint="DefDlgProcW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3382                 //private extern static IntPtr Win32DefDlgProc(IntPtr hWnd, Msg Msg, IntPtr wParam, IntPtr lParam);
3383
3384                 [DllImport ("user32.dll", EntryPoint="PostQuitMessage", CallingConvention=CallingConvention.StdCall)]
3385                 private extern static IntPtr Win32PostQuitMessage(int nExitCode);
3386
3387                 [DllImport ("user32.dll", EntryPoint="UpdateWindow", CallingConvention=CallingConvention.StdCall)]
3388                 private extern static IntPtr Win32UpdateWindow(IntPtr hWnd);
3389
3390                 [DllImport ("user32.dll", EntryPoint="GetUpdateRect", CallingConvention=CallingConvention.StdCall)]
3391                 private extern static bool Win32GetUpdateRect(IntPtr hWnd, ref RECT rect, bool erase);
3392
3393                 [DllImport ("user32.dll", EntryPoint="BeginPaint", CallingConvention=CallingConvention.StdCall)]
3394                 private extern static IntPtr Win32BeginPaint(IntPtr hWnd, ref PAINTSTRUCT ps);
3395
3396                 [DllImport ("user32.dll", EntryPoint = "ValidateRect", CallingConvention = CallingConvention.StdCall)]
3397                 private extern static IntPtr Win32ValidateRect (IntPtr hWnd, ref RECT rect);
3398
3399                 [DllImport ("user32.dll", EntryPoint="EndPaint", CallingConvention=CallingConvention.StdCall)]
3400                 private extern static bool Win32EndPaint(IntPtr hWnd, ref PAINTSTRUCT ps);
3401
3402                 [DllImport ("user32.dll", EntryPoint="GetDC", CallingConvention=CallingConvention.StdCall)]
3403                 private extern static IntPtr Win32GetDC(IntPtr hWnd);
3404
3405                 [DllImport ("user32.dll", EntryPoint="GetWindowDC", CallingConvention=CallingConvention.StdCall)]
3406                 private extern static IntPtr Win32GetWindowDC(IntPtr hWnd);
3407
3408                 //[DllImport ("user32.dll", EntryPoint="GetDCEx", CallingConvention=CallingConvention.StdCall)]
3409                 //private extern static IntPtr Win32GetDCEx(IntPtr hWnd, IntPtr hRgn, DCExFlags flags);
3410
3411                 [DllImport ("user32.dll", EntryPoint="ReleaseDC", CallingConvention=CallingConvention.StdCall)]
3412                 private extern static IntPtr Win32ReleaseDC(IntPtr hWnd, IntPtr hDC);
3413
3414                 [DllImport ("user32.dll", EntryPoint="MessageBoxW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3415                 private extern static IntPtr Win32MessageBox(IntPtr hParent, string pText, string pCaption, uint uType);
3416
3417                 [DllImport ("user32.dll", EntryPoint="InvalidateRect", CallingConvention=CallingConvention.StdCall)]
3418                 private extern static IntPtr Win32InvalidateRect(IntPtr hWnd, ref RECT lpRect, bool bErase);
3419
3420                 //[DllImport ("user32.dll", EntryPoint="InvalidateRect", CallingConvention=CallingConvention.StdCall)]
3421                 //private extern static IntPtr Win32InvalidateRect(IntPtr hWnd, IntPtr lpRect, bool bErase);
3422
3423                 [DllImport ("user32.dll", EntryPoint="SetCapture", CallingConvention=CallingConvention.StdCall)]
3424                 private extern static IntPtr Win32SetCapture(IntPtr hWnd);
3425
3426                 [DllImport ("user32.dll", EntryPoint="ReleaseCapture", CallingConvention=CallingConvention.StdCall)]
3427                 private extern static IntPtr Win32ReleaseCapture();
3428
3429                 [DllImport ("user32.dll", EntryPoint="GetWindowRect", CallingConvention=CallingConvention.StdCall)]
3430                 private extern static IntPtr Win32GetWindowRect(IntPtr hWnd, out RECT rect);
3431
3432                 [DllImport ("user32.dll", EntryPoint="GetClientRect", CallingConvention=CallingConvention.StdCall)]
3433                 private extern static IntPtr Win32GetClientRect(IntPtr hWnd, out RECT rect);
3434
3435                 [DllImport ("user32.dll", EntryPoint="ScreenToClient", CallingConvention=CallingConvention.StdCall)]
3436                 private extern static bool Win32ScreenToClient(IntPtr hWnd, ref POINT pt);
3437
3438                 [DllImport ("user32.dll", EntryPoint="ClientToScreen", CallingConvention=CallingConvention.StdCall)]
3439                 private extern static bool Win32ClientToScreen(IntPtr hWnd, ref POINT pt);
3440
3441                 // This function returns the parent OR THE OWNER!
3442                 // Use GetAncestor to only get the parent.
3443                 [DllImport ("user32.dll", EntryPoint="GetParent", CallingConvention=CallingConvention.StdCall)]
3444                 private extern static IntPtr Win32GetParent(IntPtr hWnd);
3445
3446                 [DllImport ("user32.dll", EntryPoint = "GetAncestor", CallingConvention = CallingConvention.StdCall)]
3447                 private extern static IntPtr Win32GetAncestor (IntPtr hWnd, AncestorType flags);
3448
3449                 [DllImport ("user32.dll", EntryPoint="SetActiveWindow", CallingConvention=CallingConvention.StdCall)]
3450                 private extern static IntPtr Win32SetActiveWindow(IntPtr hWnd);
3451
3452                 [DllImport ("user32.dll", EntryPoint="AdjustWindowRectEx", CallingConvention=CallingConvention.StdCall)]
3453                 private extern static bool Win32AdjustWindowRectEx(ref RECT lpRect, int dwStyle, bool bMenu, int dwExStyle);
3454
3455                 [DllImport ("user32.dll", EntryPoint="GetCursorPos", CallingConvention=CallingConvention.StdCall)]
3456                 private extern static bool Win32GetCursorPos(out POINT lpPoint);
3457
3458                 [DllImport ("user32.dll", EntryPoint="SetCursorPos", CallingConvention=CallingConvention.StdCall)]
3459                 private extern static bool Win32SetCursorPos(int x, int y);
3460
3461                 //[DllImport ("user32.dll", EntryPoint="GetWindowPlacement", CallingConvention=CallingConvention.StdCall)]
3462                 //private extern static bool Win32GetWindowPlacement(IntPtr hWnd, ref WINDOWPLACEMENT lpwndpl);
3463
3464                 [DllImport ("user32.dll", EntryPoint="TrackMouseEvent", CallingConvention=CallingConvention.StdCall)]
3465                 private extern static bool Win32TrackMouseEvent(ref TRACKMOUSEEVENT tme);
3466
3467                 //[DllImport ("gdi32.dll", EntryPoint="CreateBrushIndirect", CallingConvention=CallingConvention.StdCall)]
3468                 //private extern static IntPtr Win32CreateBrushIndirect(ref LOGBRUSH lb);
3469
3470                 [DllImport ("gdi32.dll", EntryPoint="CreateSolidBrush", CallingConvention=CallingConvention.StdCall)]
3471                 private extern static IntPtr Win32CreateSolidBrush(COLORREF clrRef);
3472
3473                 [DllImport ("gdi32.dll", EntryPoint="PatBlt", CallingConvention=CallingConvention.StdCall)]
3474                 private extern static int Win32PatBlt(IntPtr hdc, int nXLeft, int nYLeft, int nWidth, int nHeight, PatBltRop dwRop);
3475
3476                 [DllImport ("user32.dll", EntryPoint="SetWindowLong", CallingConvention=CallingConvention.StdCall)]
3477                 private extern static uint Win32SetWindowLong(IntPtr hwnd, WindowLong index, uint value);
3478
3479                 [DllImport ("user32.dll", EntryPoint="GetWindowLong", CallingConvention=CallingConvention.StdCall)]
3480                 private extern static uint Win32GetWindowLong(IntPtr hwnd, WindowLong index);
3481
3482                 [DllImport ("user32.dll", EntryPoint="SetLayeredWindowAttributes", CallingConvention=CallingConvention.StdCall)]
3483                 private extern static uint Win32SetLayeredWindowAttributes (IntPtr hwnd, COLORREF crKey, byte bAlpha, LayeredWindowAttributes dwFlags);
3484
3485                 [DllImport ("user32.dll", EntryPoint="GetLayeredWindowAttributes", CallingConvention=CallingConvention.StdCall)]
3486                 private extern static uint Win32GetLayeredWindowAttributes (IntPtr hwnd, out COLORREF pcrKey, out byte pbAlpha, out LayeredWindowAttributes pwdFlags);
3487
3488                 [DllImport ("gdi32.dll", EntryPoint="DeleteObject", CallingConvention=CallingConvention.StdCall)]
3489                 public extern static bool Win32DeleteObject(IntPtr o);
3490
3491                 [DllImport ("user32.dll", EntryPoint="GetKeyState", CallingConvention=CallingConvention.StdCall)]
3492                 private extern static short Win32GetKeyState(VirtualKeys nVirtKey);
3493
3494                 [DllImport ("user32.dll", EntryPoint="GetDesktopWindow", CallingConvention=CallingConvention.StdCall)]
3495                 private extern static IntPtr Win32GetDesktopWindow();
3496
3497                 [DllImport ("user32.dll", EntryPoint="SetTimer", CallingConvention=CallingConvention.StdCall)]
3498                 private extern static IntPtr Win32SetTimer(IntPtr hwnd, int nIDEvent, uint uElapse, IntPtr timerProc);
3499
3500                 [DllImport ("user32.dll", EntryPoint="KillTimer", CallingConvention=CallingConvention.StdCall)]
3501                 private extern static IntPtr Win32KillTimer(IntPtr hwnd, int nIDEvent);
3502
3503                 [DllImport ("user32.dll", EntryPoint="ShowWindow", CallingConvention=CallingConvention.StdCall)]
3504                 private extern static IntPtr Win32ShowWindow(IntPtr hwnd, WindowPlacementFlags nCmdShow);
3505
3506                 [DllImport ("user32.dll", EntryPoint="EnableWindow", CallingConvention=CallingConvention.StdCall)]
3507                 private extern static IntPtr Win32EnableWindow(IntPtr hwnd, bool Enabled);
3508
3509                 [DllImport ("user32.dll", EntryPoint="SetFocus", CallingConvention=CallingConvention.StdCall)]
3510                 internal extern static IntPtr Win32SetFocus(IntPtr hwnd);
3511
3512                 [DllImport ("user32.dll", EntryPoint="GetFocus", CallingConvention=CallingConvention.StdCall)]
3513                 internal extern static IntPtr Win32GetFocus();
3514
3515                 [DllImport ("user32.dll", EntryPoint="CreateCaret", CallingConvention=CallingConvention.StdCall)]
3516                 internal extern static bool Win32CreateCaret(IntPtr hwnd, IntPtr hBitmap, int nWidth, int nHeight);
3517
3518                 [DllImport ("user32.dll", EntryPoint="DestroyCaret", CallingConvention=CallingConvention.StdCall)]
3519                 private  extern static bool Win32DestroyCaret();
3520
3521                 [DllImport ("user32.dll", EntryPoint="ShowCaret", CallingConvention=CallingConvention.StdCall)]
3522                 private  extern static bool Win32ShowCaret(IntPtr hwnd);
3523
3524                 [DllImport ("user32.dll", EntryPoint="HideCaret", CallingConvention=CallingConvention.StdCall)]
3525                 private  extern static bool Win32HideCaret(IntPtr hwnd);
3526
3527                 [DllImport ("user32.dll", EntryPoint="SetCaretPos", CallingConvention=CallingConvention.StdCall)]
3528                 private  extern static bool Win32SetCaretPos(int X, int Y);
3529
3530                 //[DllImport ("user32.dll", EntryPoint="GetCaretBlinkTime", CallingConvention=CallingConvention.StdCall)]
3531                 //private  extern static uint Win32GetCaretBlinkTime();
3532
3533                 [DllImport ("gdi32.dll", EntryPoint="GetTextMetricsW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3534                 internal extern static bool Win32GetTextMetrics(IntPtr hdc, ref TEXTMETRIC tm);
3535
3536                 [DllImport ("gdi32.dll", EntryPoint="SelectObject", CallingConvention=CallingConvention.StdCall)]
3537                 internal extern static IntPtr Win32SelectObject(IntPtr hdc, IntPtr hgdiobject);
3538
3539                 //[DllImport ("user32.dll", EntryPoint="ScrollWindowEx", CallingConvention=CallingConvention.StdCall)]
3540                 //private extern static bool Win32ScrollWindowEx(IntPtr hwnd, int dx, int dy, ref RECT prcScroll, ref RECT prcClip, IntPtr hrgnUpdate, out RECT prcUpdate, ScrollWindowExFlags flags);
3541
3542                 //[DllImport ("user32.dll", EntryPoint="ScrollWindowEx", CallingConvention=CallingConvention.StdCall)]
3543                 //private extern static bool Win32ScrollWindowEx(IntPtr hwnd, int dx, int dy, IntPtr prcScroll, ref RECT prcClip, IntPtr hrgnUpdate, out RECT prcUpdate, ScrollWindowExFlags flags);
3544
3545                 //[DllImport ("user32.dll", EntryPoint="ScrollWindowEx", CallingConvention=CallingConvention.StdCall)]
3546                 //private extern static bool Win32ScrollWindowEx(IntPtr hwnd, int dx, int dy, ref RECT prcScroll, IntPtr prcClip, IntPtr hrgnUpdate, out RECT prcUpdate, ScrollWindowExFlags flags);
3547
3548                 [DllImport ("user32.dll", EntryPoint="ScrollWindowEx", CallingConvention=CallingConvention.StdCall)]
3549                 private extern static bool Win32ScrollWindowEx(IntPtr hwnd, int dx, int dy, IntPtr prcScroll, ref RECT prcClip, IntPtr hrgnUpdate, IntPtr prcUpdate, ScrollWindowExFlags flags);
3550
3551                 //[DllImport ("user32.dll", EntryPoint="ScrollWindowEx", CallingConvention=CallingConvention.StdCall)]
3552                 //private extern static bool Win32ScrollWindowEx(IntPtr hwnd, int dx, int dy, ref RECT prcScroll, IntPtr prcClip, IntPtr hrgnUpdate, IntPtr prcUpdate, ScrollWindowExFlags flags);
3553
3554                 //[DllImport ("user32.dll", EntryPoint="ScrollWindowEx", CallingConvention=CallingConvention.StdCall)]
3555                 //private extern static bool Win32ScrollWindowEx(IntPtr hwnd, int dx, int dy, ref RECT prcScroll, ref RECT prcClip, IntPtr hrgnUpdate, IntPtr prcUpdate, ScrollWindowExFlags flags);
3556
3557                 [DllImport ("user32.dll", EntryPoint="ScrollWindowEx", CallingConvention=CallingConvention.StdCall)]
3558                 private extern static bool Win32ScrollWindowEx(IntPtr hwnd, int dx, int dy, IntPtr prcScroll, IntPtr prcClip, IntPtr hrgnUpdate, IntPtr prcUpdate, ScrollWindowExFlags flags);
3559
3560                 [DllImport ("user32.dll", EntryPoint="GetActiveWindow", CallingConvention=CallingConvention.StdCall)]
3561                 private extern static IntPtr Win32GetActiveWindow();
3562
3563                 [DllImport ("user32.dll", EntryPoint="GetSystemMetrics", CallingConvention=CallingConvention.StdCall)]
3564                 private extern static int Win32GetSystemMetrics(SystemMetrics nIndex);
3565
3566                 [DllImport ("shell32.dll", EntryPoint="Shell_NotifyIconW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3567                 private extern static bool Win32Shell_NotifyIcon(NotifyIconMessage dwMessage, ref NOTIFYICONDATA lpData);
3568
3569                 [DllImport ("gdi32.dll", EntryPoint="CreateRectRgn", CallingConvention=CallingConvention.StdCall)]
3570                 internal extern static IntPtr Win32CreateRectRgn(int nLeftRect, int nTopRect, int nRightRect, int nBottomRect);
3571
3572                 [DllImport ("user32.dll", EntryPoint="IsWindowEnabled", CallingConvention=CallingConvention.StdCall)]
3573                 private extern static bool IsWindowEnabled(IntPtr hwnd);
3574
3575                 [DllImport ("user32.dll", EntryPoint="IsWindowVisible", CallingConvention=CallingConvention.StdCall)]
3576                 private extern static bool IsWindowVisible(IntPtr hwnd);
3577
3578                 //[DllImport ("user32.dll", EntryPoint="SetClassLong", CallingConvention=CallingConvention.StdCall)]
3579                 //private extern static bool Win32SetClassLong(IntPtr hwnd, ClassLong nIndex, IntPtr dwNewLong);
3580
3581                 [DllImport ("user32.dll", EntryPoint="SendMessageW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3582                 private extern static IntPtr Win32SendMessage(IntPtr hwnd, Msg msg, IntPtr wParam, IntPtr lParam);
3583
3584                 [DllImport ("user32.dll", EntryPoint="PostMessageW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3585                 private extern static bool Win32PostMessage(IntPtr hwnd, Msg msg, IntPtr wParam, IntPtr lParam);
3586
3587                 [DllImport ("user32.dll", EntryPoint="SendInput", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3588                 private extern static UInt32 Win32SendInput(UInt32 nInputs, [MarshalAs(UnmanagedType.LPArray)] INPUT[] inputs, Int32 cbSize);
3589
3590                 [DllImport ("user32.dll", EntryPoint="SystemParametersInfoW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3591                 private extern static bool Win32SystemParametersInfo(SPIAction uiAction, uint uiParam, ref RECT rect, uint fWinIni);
3592
3593                 //[DllImport ("user32.dll", EntryPoint="SystemParametersInfoW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3594                 //private extern static bool Win32SystemParametersInfo(SPIAction uiAction, uint uiParam, ref uint value, uint fWinIni);
3595
3596                 [DllImport ("user32.dll", EntryPoint = "SystemParametersInfoW", CharSet = CharSet.Unicode, CallingConvention = CallingConvention.StdCall)]
3597                 private extern static bool Win32SystemParametersInfo (SPIAction uiAction, uint uiParam, ref int value, uint fWinIni);
3598
3599                 [DllImport ("user32.dll", EntryPoint = "SystemParametersInfoW", CharSet = CharSet.Unicode, CallingConvention = CallingConvention.StdCall)]
3600                 private extern static bool Win32SystemParametersInfo (SPIAction uiAction, uint uiParam, ref bool value, uint fWinIni);
3601
3602                 [DllImport ("user32.dll", EntryPoint = "SystemParametersInfoW", CharSet = CharSet.Unicode, CallingConvention = CallingConvention.StdCall)]
3603                 private extern static bool Win32SystemParametersInfo (SPIAction uiAction, uint uiParam, ref ANIMATIONINFO value, uint fWinIni);
3604
3605                 [DllImport ("user32.dll", EntryPoint="OpenClipboard", CallingConvention=CallingConvention.StdCall)]
3606                 private extern static bool Win32OpenClipboard(IntPtr hwnd);
3607
3608                 [DllImport ("user32.dll", EntryPoint="EmptyClipboard", CallingConvention=CallingConvention.StdCall)]
3609                 private extern static bool Win32EmptyClipboard();
3610
3611                 [DllImport ("user32.dll", EntryPoint="RegisterClipboardFormatW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
3612                 private extern static uint Win32RegisterClipboardFormat(string format);
3613
3614                 [DllImport ("user32.dll", EntryPoint="CloseClipboard", CallingConvention=CallingConvention.StdCall)]
3615                 private extern static bool Win32CloseClipboard();
3616
3617                 [DllImport ("user32.dll", EntryPoint="EnumClipboardFormats", CallingConvention=CallingConvention.StdCall)]
3618                 private extern static uint Win32EnumClipboardFormats(uint format);
3619
3620                 [DllImport ("user32.dll", EntryPoint="GetClipboardData", CallingConvention=CallingConvention.StdCall)]
3621                 private extern static IntPtr Win32GetClipboardData(uint format);
3622
3623                 [DllImport ("user32.dll", EntryPoint="SetClipboardData", CallingConvention=CallingConvention.StdCall)]
3624                 private extern static IntPtr Win32SetClipboardData(uint format, IntPtr handle);
3625
3626                 [DllImport ("kernel32.dll", EntryPoint="GlobalAlloc", CallingConvention=CallingConvention.StdCall)]
3627                 internal extern static IntPtr Win32GlobalAlloc(GAllocFlags Flags, int dwBytes);
3628
3629                 [DllImport ("kernel32.dll", EntryPoint="CopyMemory", CallingConvention=CallingConvention.StdCall)]
3630                 internal extern static void Win32CopyMemory(IntPtr Destination, IntPtr Source, int length);
3631
3632                 [DllImport ("kernel32.dll", EntryPoint="GlobalFree", CallingConvention=CallingConvention.StdCall)]
3633                 internal extern static IntPtr Win32GlobalFree(IntPtr hMem);
3634
3635                 [DllImport ("kernel32.dll", EntryPoint="GlobalSize", CallingConvention=CallingConvention.StdCall)]
3636                 internal extern static uint Win32GlobalSize(IntPtr hMem);
3637
3638                 [DllImport ("kernel32.dll", EntryPoint="GlobalLock", CallingConvention=CallingConvention.StdCall)]
3639                 internal extern static IntPtr Win32GlobalLock(IntPtr hMem);
3640
3641                 [DllImport ("kernel32.dll", EntryPoint="GlobalUnlock", CallingConvention=CallingConvention.StdCall)]
3642                 internal extern static IntPtr Win32GlobalUnlock(IntPtr hMem);
3643
3644                 [DllImport ("gdi32.dll", EntryPoint="SetROP2", CallingConvention=CallingConvention.StdCall)]
3645                 internal extern static int Win32SetROP2(IntPtr hdc, ROP2DrawMode fnDrawMode);
3646
3647                 [DllImport ("gdi32.dll", EntryPoint="MoveToEx", CallingConvention=CallingConvention.StdCall)]
3648                 internal extern static bool Win32MoveToEx(IntPtr hdc, int x, int y, ref POINT lpPoint);
3649
3650                 [DllImport ("gdi32.dll", EntryPoint="MoveToEx", CallingConvention=CallingConvention.StdCall)]
3651                 internal extern static bool Win32MoveToEx(IntPtr hdc, int x, int y, IntPtr lpPoint);
3652
3653                 [DllImport ("gdi32.dll", EntryPoint="LineTo", CallingConvention=CallingConvention.StdCall)]
3654                 internal extern static bool Win32LineTo(IntPtr hdc, int x, int y);
3655
3656                 [DllImport ("gdi32.dll", EntryPoint="CreatePen", CallingConvention=CallingConvention.StdCall)]
3657                 internal extern static IntPtr Win32CreatePen(PenStyle fnPenStyle, int nWidth, ref COLORREF color);
3658
3659                 [DllImport ("gdi32.dll", EntryPoint="CreatePen", CallingConvention=CallingConvention.StdCall)]
3660                 internal extern static IntPtr Win32CreatePen(PenStyle fnPenStyle, int nWidth, IntPtr color);
3661
3662                 [DllImport ("gdi32.dll", EntryPoint="GetStockObject", CallingConvention=CallingConvention.StdCall)]
3663                 internal extern static IntPtr Win32GetStockObject(StockObject fnObject);
3664
3665                 [DllImport ("gdi32.dll", EntryPoint="CreateHatchBrush", CallingConvention=CallingConvention.StdCall)]
3666                 internal extern static IntPtr Win32CreateHatchBrush(HatchStyle fnStyle, IntPtr color);
3667
3668                 [DllImport ("gdi32.dll", EntryPoint="CreateHatchBrush", CallingConvention=CallingConvention.StdCall)]
3669                 internal extern static IntPtr Win32CreateHatchBrush(HatchStyle fnStyle, ref COLORREF color);
3670
3671                 [DllImport("gdi32.dll", EntryPoint = "ExcludeClipRect", CallingConvention = CallingConvention.StdCall)]
3672                 internal extern static int Win32ExcludeClipRect (IntPtr hdc, int left, int top,  int right, int bottom);
3673
3674                 [DllImport ("gdi32.dll", EntryPoint="ExtSelectClipRgn", CallingConvention=CallingConvention.StdCall)]
3675                 internal extern static int Win32ExtSelectClipRgn(IntPtr hdc, IntPtr hrgn, int mode);
3676
3677                 [DllImport ("winmm.dll", EntryPoint="PlaySoundW", CallingConvention=CallingConvention.StdCall, CharSet=CharSet.Unicode)]
3678                 internal extern static IntPtr Win32PlaySound(string pszSound, IntPtr hmod, SndFlags fdwSound);
3679
3680                 [DllImport ("user32.dll", EntryPoint="GetDoubleClickTime", CallingConvention=CallingConvention.StdCall, CharSet=CharSet.Unicode)]
3681                 private extern static int Win32GetDoubleClickTime ();
3682
3683                 [DllImport ("user32.dll", EntryPoint="SetWindowRgn", CallingConvention=CallingConvention.StdCall, CharSet=CharSet.Unicode)]
3684                 internal extern static int Win32SetWindowRgn(IntPtr hWnd, IntPtr hRgn, bool redraw);
3685
3686                 [DllImport ("user32.dll", EntryPoint="GetWindowRgn", CallingConvention=CallingConvention.StdCall, CharSet=CharSet.Unicode)]
3687                 internal extern static IntPtr Win32GetWindowRgn(IntPtr hWnd, IntPtr hRgn);
3688
3689                 [DllImport ("user32.dll", EntryPoint="ClipCursor", CallingConvention=CallingConvention.StdCall)]
3690                 internal extern static bool Win32ClipCursor (ref RECT lpRect);
3691
3692                 [DllImport ("user32.dll", EntryPoint="GetClipCursor", CallingConvention=CallingConvention.StdCall)]
3693                 internal extern static bool Win32GetClipCursor (out RECT lpRect);
3694
3695                 [DllImport ("gdi32.dll", EntryPoint="BitBlt", CallingConvention=CallingConvention.StdCall)]
3696                 internal static extern bool Win32BitBlt (IntPtr hObject, int nXDest, int nYDest, int nWidth,
3697                    int nHeight, IntPtr hObjSource, int nXSrc, int nYSrc, TernaryRasterOperations dwRop);
3698
3699                 [DllImport ("gdi32.dll", EntryPoint="CreateCompatibleDC", CallingConvention=CallingConvention.StdCall, ExactSpelling = true, SetLastError = true)]
3700                 internal static extern IntPtr Win32CreateCompatibleDC (IntPtr hdc);
3701
3702                 [DllImport ("gdi32.dll", EntryPoint="DeleteDC", CallingConvention=CallingConvention.StdCall, ExactSpelling = true, SetLastError = true)]
3703                 internal static extern bool Win32DeleteDC (IntPtr hdc);
3704
3705                 [DllImport ("gdi32.dll", EntryPoint="CreateCompatibleBitmap", CallingConvention=CallingConvention.StdCall)]
3706                 internal static extern IntPtr Win32CreateCompatibleBitmap (IntPtr hdc, int nWidth, int nHeight);
3707
3708                 [DllImport ("kernel32.dll", EntryPoint = "GetSystemPowerStatus", CallingConvention = CallingConvention.StdCall)]
3709                 internal static extern Boolean Win32GetSystemPowerStatus (SYSTEMPOWERSTATUS sps);
3710
3711                 [DllImport ("user32.dll", EntryPoint = "GetIconInfo", CallingConvention = CallingConvention.StdCall)]
3712                 internal static extern bool Win32GetIconInfo (IntPtr hIcon, out ICONINFO piconinfo);
3713
3714                 [DllImport ("user32.dll", EntryPoint="SetForegroundWindow", CallingConvention=CallingConvention.StdCall)]
3715                 extern static bool Win32SetForegroundWindow(IntPtr hWnd);
3716                 #endregion
3717         }
3718 }