mcs/class/System.Drawing/System.Drawing/gdipFunctions.cs

   1 //
   2 // System.Drawing.gdipFunctions.cs
   3 //
   4 // Authors:
   5 //      Alexandre Pigolkine (pigolkine@gmx.de)
   6 //      Jordi Mas i Hernandez (jordi@ximian.com)
   7 //      Sanjay Gupta (gsanjay@novell.com)
   8 //      Ravindra (rkumar@novell.com)
   9 //      Peter Dennis Bartok (pbartok@novell.com)
  10 //      Sebastien Pouliot  <sebastien@ximian.com>
  11 //
  12 // Copyright (C) 2004 - 2007 Novell, Inc (http://www.novell.com)
  13 //
  14 // Permission is hereby granted, free of charge, to any person obtaining
  15 // a copy of this software and associated documentation files (the
  16 // "Software"), to deal in the Software without restriction, including
  17 // without limitation the rights to use, copy, modify, merge, publish,
  18 // distribute, sublicense, and/or sell copies of the Software, and to
  19 // permit persons to whom the Software is furnished to do so, subject to
  20 // the following conditions:
  21 //
  22 // The above copyright notice and this permission notice shall be
  23 // included in all copies or substantial portions of the Software.
  24 //
  25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  29 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  30 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  31 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  32 //
  33
  34 using System.IO;
  35 using System.Runtime.InteropServices;
  36 using System.Text;
  37 using System.Drawing.Drawing2D;
  38 using System.Drawing.Imaging;
  39 using System.Drawing.Text;
  40 using System.Globalization;
  41 using System.Security;
  42 using System.Runtime.InteropServices.ComTypes;
  43
  44 namespace System.Drawing
  45 {
  46         /// <summary>
  47         /// GDI+ API Functions
  48         /// </summary>
  49         [SuppressUnmanagedCodeSecurity]
  50         internal static class GDIPlus {
  51                 public const int FACESIZE = 32;
  52                 public const int LANG_NEUTRAL = 0;
  53                 public static IntPtr Display = IntPtr.Zero;
  54                 public static bool UseX11Drawable = false;
  55                 public static bool UseCarbonDrawable = false;
  56                 public static bool UseCocoaDrawable = false;
  57
  58                 #region gdiplus.dll functions
  59
  60                 // startup / shutdown
  61                 [DllImport("gdiplus.dll")]
  62                 static internal extern Status GdiplusStartup(ref ulong token, ref GdiplusStartupInput input, ref GdiplusStartupOutput output);
  63                 [DllImport("gdiplus.dll")]
  64                 static internal extern void GdiplusShutdown(ref ulong token);
  65
  66                 internal static ulong GdiPlusToken = 0;
  67
  68                 static void ProcessExit (object sender, EventArgs e)
  69                 {
  70                         // Called all pending objects and claim any pending handle before
  71                         // shutting down
  72                         GC.Collect ();
  73                         GC.WaitForPendingFinalizers ();
  74 #if false
  75                         GdiPlusToken = 0;
  76
  77                         // This causes crashes in because this call occurs before all
  78                         // managed GDI+ objects are finalized. When they are finalized
  79                         // they call into a shutdown GDI+ and we crash.
  80                         GdiplusShutdown (ref GdiPlusToken);
  81
  82                         // This causes crashes in Mono libgdiplus because this call
  83                         // occurs before all managed GDI objects are finalized
  84                         // When they are finalized they use the closed display and
  85                         // crash
  86                         if (UseX11Drawable && Display != IntPtr.Zero) {
  87                                 XCloseDisplay (Display);
  88                         }
  89 #endif
  90                 }
  91
  92                 static GDIPlus ()
  93                 {
  94                         int platform = (int) Environment.OSVersion.Platform;
  95                         if ((platform == 4) || (platform == 6) || (platform == 128)) {
  96                                 if (Environment.GetEnvironmentVariable ("not_supported_MONO_MWF_USE_NEW_X11_BACKEND") != null || Environment.GetEnvironmentVariable ("MONO_MWF_MAC_FORCE_X11") != null) {
  97                                         UseX11Drawable = true;
  98                                 } else {
  99                                         IntPtr buf = Marshal.AllocHGlobal (8192);
 100                                         // This is kind of a hack but gets us sysname from uname (struct utsname *name) on
 101                                         // linux and darwin
 102                                         if (uname (buf) != 0) {
 103                                                 // WTH: We couldn't detect the OS; lets default to X11
 104                                                 UseX11Drawable = true;
 105                                         } else {
 106                                                 string os = Marshal.PtrToStringAnsi (buf);
 107                                                 if (os == "Darwin")
 108                                                         UseCarbonDrawable = true;
 109                                                 else
 110                                                         UseX11Drawable = true;
 111                                         }
 112                                         Marshal.FreeHGlobal (buf);
 113                                 }
 114                         }
 115
 116                         GdiplusStartupInput input = GdiplusStartupInput.MakeGdiplusStartupInput();
 117                         GdiplusStartupOutput output = GdiplusStartupOutput.MakeGdiplusStartupOutput();
 118                         try {
 119                                 GdiplusStartup (ref GdiPlusToken, ref input, ref output);
 120                         }
 121                         catch (TypeInitializationException) {
 122                                 Console.Error.WriteLine (
 123                                         "* ERROR: Can not initialize GDI+ library{0}{0}" +
 124                                         "Please check http://www.mono-project.com/Problem:GDIPlusInit for details",
 125                                         Environment.NewLine);
 126                         }
 127
 128                         // under MS 1.x this event is raised only for the default application domain
 129                         AppDomain.CurrentDomain.ProcessExit += new EventHandler (ProcessExit);
 130                 }
 131
 132                 static public bool RunningOnWindows ()
 133                 {
 134                         return !UseX11Drawable && !UseCarbonDrawable && !UseCocoaDrawable;
 135                 }
 136
 137                 static public bool RunningOnUnix ()
 138                 {
 139                         return UseX11Drawable || UseCarbonDrawable || UseCocoaDrawable;
 140                 }
 141
 142                 // Copies a Ptr to an array of Points and releases the memory
 143                 static public void FromUnManagedMemoryToPointI (IntPtr prt, Point [] pts)
 144                 {
 145                         int nPointSize = Marshal.SizeOf (pts[0]);
 146                         IntPtr pos = prt;
 147                         for (int i=0; i<pts.Length; i++, pos = new IntPtr (pos.ToInt64 () + nPointSize))
 148                                 pts[i] = (Point) Marshal.PtrToStructure (pos, typeof (Point));
 149
 150                         Marshal.FreeHGlobal (prt);
 151                 }
 152
 153                 // Copies a Ptr to an array of Points and releases the memory
 154                 static public void FromUnManagedMemoryToPoint (IntPtr prt, PointF [] pts)
 155                 {
 156                         int nPointSize = Marshal.SizeOf (pts[0]);
 157                         IntPtr pos = prt;
 158                         for (int i=0; i<pts.Length; i++, pos = new IntPtr (pos.ToInt64 () + nPointSize))
 159                                 pts[i] = (PointF) Marshal.PtrToStructure (pos, typeof (PointF));
 160
 161                         Marshal.FreeHGlobal (prt);
 162                 }
 163
 164                 // Copies an array of Points to unmanaged memory
 165                 static public IntPtr FromPointToUnManagedMemoryI (Point [] pts)
 166                 {
 167                         int nPointSize =  Marshal.SizeOf (pts[0]);
 168                         IntPtr dest = Marshal.AllocHGlobal (nPointSize * pts.Length);
 169                         IntPtr pos = dest;
 170                         for (int i=0; i<pts.Length; i++, pos = new IntPtr (pos.ToInt64 () + nPointSize))
 171                                 Marshal.StructureToPtr (pts[i], pos, false);
 172
 173                         return dest;
 174                 }
 175
 176                 // Copies a Ptr to an array of v and releases the memory
 177                 static public void FromUnManagedMemoryToRectangles (IntPtr prt, RectangleF [] pts)
 178                 {
 179                         int nPointSize = Marshal.SizeOf (pts[0]);
 180                         IntPtr pos = prt;
 181                         for (int i = 0; i < pts.Length; i++, pos = new IntPtr (pos.ToInt64 () + nPointSize))
 182                                 pts[i] = (RectangleF) Marshal.PtrToStructure (pos, typeof (RectangleF));
 183
 184                         Marshal.FreeHGlobal (prt);
 185                 }
 186
 187                 // Copies an array of Points to unmanaged memory
 188                 static public IntPtr FromPointToUnManagedMemory (PointF [] pts)
 189                 {
 190                         int nPointSize =  Marshal.SizeOf (pts[0]);
 191                         IntPtr dest = Marshal.AllocHGlobal (nPointSize * pts.Length);
 192                         IntPtr pos = dest;
 193                         for (int i=0; i<pts.Length; i++, pos = new IntPtr (pos.ToInt64 () + nPointSize))
 194                                 Marshal.StructureToPtr (pts[i], pos, false);
 195
 196                         return dest;
 197                 }
 198
 199                 // Converts a status into exception
 200                 // TODO: Add more status code mappings here
 201                 static internal void CheckStatus (Status status)
 202                 {
 203                         string msg;
 204                         switch (status) {
 205                         case Status.Ok:
 206                                 return;
 207                         case Status.GenericError:
 208                                 msg = Locale.GetText ("Generic Error [GDI+ status: {0}]", status);
 209                                 throw new Exception (msg);
 210                         case Status.InvalidParameter:
 211                                 msg = Locale.GetText ("A null reference or invalid value was found [GDI+ status: {0}]", status);
 212                                 throw new ArgumentException (msg);
 213                         case Status.OutOfMemory:
 214                                 msg = Locale.GetText ("Not enough memory to complete operation [GDI+ status: {0}]", status);
 215                                 throw new OutOfMemoryException (msg);
 216                         case Status.ObjectBusy:
 217                                 msg = Locale.GetText ("Object is busy and cannot state allow this operation [GDI+ status: {0}]", status);
 218                                 throw new MemberAccessException (msg);
 219                         case Status.InsufficientBuffer:
 220                                 msg = Locale.GetText ("Insufficient buffer provided to complete operation [GDI+ status: {0}]", status);
 221                                 throw new InternalBufferOverflowException (msg);
 222                         case Status.PropertyNotSupported:
 223                                 msg = Locale.GetText ("Property not supported [GDI+ status: {0}]", status);
 224                                 throw new NotSupportedException (msg);
 225                         case Status.FileNotFound:
 226                                 msg = Locale.GetText ("Requested file was not found [GDI+ status: {0}]", status);
 227                                 throw new FileNotFoundException (msg);
 228                         case Status.AccessDenied:
 229                                 msg = Locale.GetText ("Access to resource was denied [GDI+ status: {0}]", status);
 230                                 throw new UnauthorizedAccessException (msg);
 231                         case Status.UnknownImageFormat:
 232                                 msg = Locale.GetText ("Either the image format is unknown or you don't have the required libraries to decode this format [GDI+ status: {0}]", status);
 233                                 throw new NotSupportedException (msg);
 234                         case Status.NotImplemented:
 235                                 msg = Locale.GetText ("The requested feature is not implemented [GDI+ status: {0}]", status);
 236                                 throw new NotImplementedException (msg);
 237                         case Status.WrongState:
 238                                 msg = Locale.GetText ("Object is not in a state that can allow this operation [GDI+ status: {0}]", status);
 239                                 throw new ArgumentException (msg);
 240                         case Status.FontFamilyNotFound:
 241                                 msg = Locale.GetText ("The requested FontFamily could not be found [GDI+ status: {0}]", status);
 242                                 throw new ArgumentException (msg);
 243                         case Status.ValueOverflow:
 244                                 msg = Locale.GetText ("Argument is out of range [GDI+ status: {0}]", status);
 245                                 throw new OverflowException (msg);
 246                         case Status.Win32Error:
 247                                 msg = Locale.GetText ("The operation is invalid [GDI+ status: {0}]", status);
 248                                 throw new InvalidOperationException (msg);
 249                         default:
 250                                 msg = Locale.GetText ("Unknown Error [GDI+ status: {0}]", status);
 251                                 throw new Exception (msg);
 252                         }
 253                 }
 254
 255                 // Memory functions
 256                 [DllImport("gdiplus.dll")]
 257                 static internal extern IntPtr GdipAlloc (int size);
 258                 [DllImport("gdiplus.dll")]
 259                 static internal extern void GdipFree (IntPtr ptr);
 260
 261
 262                 // Brush functions
 263                 [DllImport("gdiplus.dll")]
 264                 static internal extern Status GdipCloneBrush (IntPtr brush, out IntPtr clonedBrush);
 265                 [DllImport("gdiplus.dll")]
 266                 static internal extern Status GdipDeleteBrush (IntPtr brush);
 267                 [DllImport("gdiplus.dll")]
 268                 static internal extern Status GdipGetBrushType (IntPtr brush, out BrushType type);
 269
 270
 271                 // Region functions
 272                 [DllImport("gdiplus.dll")]
 273                 static internal extern Status GdipCreateRegion (out IntPtr region);
 274
 275                 [DllImport("gdiplus.dll")]
 276                 static internal extern Status GdipCreateRegionRgnData (byte[] data, int size, out IntPtr region);
 277
 278                 [DllImport("gdiplus.dll")]
 279                 static internal extern Status GdipDeleteRegion (IntPtr region);
 280
 281                 [DllImport("gdiplus.dll")]
 282                 static internal extern Status GdipCloneRegion (IntPtr region, out IntPtr cloned);
 283
 284                 [DllImport("gdiplus.dll")]
 285                 static internal extern Status GdipCreateRegionRect (ref RectangleF rect, out IntPtr region);
 286
 287                 [DllImport("gdiplus.dll")]
 288                 static internal extern Status GdipCreateRegionRectI (ref Rectangle rect,  out IntPtr region);
 289
 290                 [DllImport("gdiplus.dll")]
 291                 static internal extern Status GdipCreateRegionPath (IntPtr path, out IntPtr region);
 292
 293                 [DllImport("gdiplus.dll")]
 294                 static internal extern Status GdipTranslateRegion (IntPtr region, float dx, float dy);
 295
 296                 [DllImport("gdiplus.dll")]
 297                 static internal extern Status GdipTranslateRegionI (IntPtr region, int dx, int dy);
 298
 299                 [DllImport("gdiplus.dll")]
 300                 static internal extern Status GdipIsVisibleRegionPoint (IntPtr region, float x, float y,
 301                         IntPtr graphics, out bool result);
 302
 303                 [DllImport("gdiplus.dll")]
 304                 static internal extern Status GdipIsVisibleRegionPointI (IntPtr region, int x, int y,
 305                         IntPtr graphics, out bool result);
 306
 307                 [DllImport("gdiplus.dll")]
 308                 static internal extern Status GdipIsVisibleRegionRect (IntPtr region, float x, float y, float width,
 309                         float height, IntPtr graphics, out bool result);
 310
 311                 [DllImport("gdiplus.dll")]
 312                 static internal extern Status  GdipIsVisibleRegionRectI (IntPtr region, int x, int y, int width,
 313                         int height, IntPtr graphics, out bool result);
 314
 315
 316                 [DllImport("gdiplus.dll")]
 317                 static internal extern Status GdipCombineRegionRect (IntPtr region, ref RectangleF rect,
 318                         CombineMode combineMode);
 319
 320                 [DllImport("gdiplus.dll")]
 321                 static internal extern Status GdipCombineRegionRectI (IntPtr region, ref Rectangle rect,
 322                         CombineMode combineMode);
 323
 324                 [DllImport("gdiplus.dll")]
 325                 static internal extern Status GdipCombineRegionPath (IntPtr region, IntPtr path, CombineMode combineMode);
 326
 327                 [DllImport("gdiplus.dll")]
 328                 static internal extern Status GdipGetRegionBounds (IntPtr region, IntPtr graphics, ref RectangleF rect);
 329
 330                 [DllImport("gdiplus.dll")]
 331                 static internal extern Status GdipSetInfinite (IntPtr region);
 332
 333                 [DllImport("gdiplus.dll")]
 334                 static internal extern Status GdipSetEmpty (IntPtr region);
 335
 336                 [DllImport("gdiplus.dll")]
 337                 static internal extern Status GdipIsEmptyRegion (IntPtr region, IntPtr graphics, out bool result);
 338
 339                 [DllImport("gdiplus.dll")]
 340                 static internal extern Status GdipIsInfiniteRegion (IntPtr region, IntPtr graphics, out bool result);
 341
 342                 [DllImport("gdiplus.dll")]
 343                 static internal extern Status GdipCombineRegionRegion (IntPtr region, IntPtr region2,
 344                         CombineMode combineMode);
 345
 346                 [DllImport("gdiplus.dll")]
 347                 static internal extern Status GdipIsEqualRegion (IntPtr region, IntPtr region2,
 348                            IntPtr graphics, out bool result);
 349
 350                 [DllImport("gdiplus.dll")]
 351                 static internal extern Status GdipGetRegionDataSize (IntPtr region, out int bufferSize);
 352
 353                 [DllImport("gdiplus.dll")]
 354                 static internal extern Status GdipGetRegionData (IntPtr region, byte[] buffer, int bufferSize,
 355                   out int sizeFilled);
 356
 357                 [DllImport("gdiplus.dll")]
 358                 static internal extern Status GdipGetRegionScansCount (IntPtr region, out int count, IntPtr matrix);
 359
 360                 [DllImport("gdiplus.dll")]
 361                 static internal extern Status GdipGetRegionScans (IntPtr region,  IntPtr rects, out int count,
 362                    IntPtr matrix);
 363
 364                 [DllImport("gdiplus.dll")]
 365                 static internal extern Status GdipTransformRegion(IntPtr region, IntPtr matrix);
 366
 367                 [DllImport("gdiplus.dll")]
 368                 static internal extern Status GdipFillRegion(IntPtr graphics, IntPtr brush, IntPtr region);
 369
 370                 [DllImport("gdiplus.dll")]
 371                 static internal extern Status GdipGetRegionHRgn (IntPtr region, IntPtr graphics, ref IntPtr hRgn);
 372
 373                 [DllImport("gdiplus.dll")]
 374                 static internal extern Status GdipCreateRegionHrgn (IntPtr hRgn, out IntPtr region);
 375
 376                 // Solid brush functions
 377                 [DllImport("gdiplus.dll")]
 378                 static internal extern Status GdipCreateSolidFill (int color, out IntPtr brush);
 379                 [DllImport("gdiplus.dll")]
 380                 static internal extern Status GdipGetSolidFillColor (IntPtr brush, out int color);
 381                 [DllImport("gdiplus.dll")]
 382                 static internal extern Status GdipSetSolidFillColor (IntPtr brush, int color);
 383
 384                 // Hatch Brush functions
 385                 [DllImport("gdiplus.dll")]
 386                 static internal extern Status GdipCreateHatchBrush (HatchStyle hatchstyle, int foreColor, int backColor, out IntPtr brush);
 387                 [DllImport("gdiplus.dll")]
 388                 static internal extern Status GdipGetHatchStyle (IntPtr brush, out HatchStyle hatchstyle);
 389                 [DllImport("gdiplus.dll")]
 390                 static internal extern Status GdipGetHatchForegroundColor (IntPtr brush, out int foreColor);
 391                 [DllImport("gdiplus.dll")]
 392                 static internal extern Status GdipGetHatchBackgroundColor (IntPtr brush, out int backColor);
 393
 394                 // Texture brush functions
 395                 [DllImport("gdiplus.dll")]
 396                 static internal extern Status GdipGetTextureImage (IntPtr texture, out IntPtr image);
 397                 [DllImport("gdiplus.dll")]
 398                 static internal extern Status GdipCreateTexture (IntPtr image, WrapMode wrapMode,  out IntPtr texture);
 399                 [DllImport("gdiplus.dll")]
 400                 static internal extern Status GdipCreateTextureIAI (IntPtr image, IntPtr imageAttributes, int x, int y, int width, int height, out IntPtr texture);
 401                 [DllImport("gdiplus.dll")]
 402                 static internal extern Status GdipCreateTextureIA (IntPtr image, IntPtr imageAttributes, float x, float y, float width, float height, out IntPtr texture);
 403                 [DllImport("gdiplus.dll")]
 404                 static internal extern Status GdipCreateTexture2I (IntPtr image, WrapMode wrapMode, int x, int y, int width, int height, out IntPtr texture);
 405                 [DllImport("gdiplus.dll")]
 406                 static internal extern Status GdipCreateTexture2 (IntPtr image, WrapMode wrapMode, float x, float y, float width, float height, out IntPtr texture);
 407                 [DllImport("gdiplus.dll")]
 408                 static internal extern Status GdipGetTextureTransform (IntPtr texture, IntPtr matrix);
 409                 [DllImport("gdiplus.dll")]
 410                 static internal extern Status GdipSetTextureTransform (IntPtr texture, IntPtr matrix);
 411                 [DllImport("gdiplus.dll")]
 412                 static internal extern Status GdipGetTextureWrapMode (IntPtr texture, out WrapMode wrapMode);
 413                 [DllImport("gdiplus.dll")]
 414                 static internal extern Status GdipSetTextureWrapMode (IntPtr texture, WrapMode wrapMode);
 415                 [DllImport("gdiplus.dll")]
 416                 static internal extern Status GdipMultiplyTextureTransform (IntPtr texture, IntPtr matrix, MatrixOrder order);
 417                 [DllImport("gdiplus.dll")]
 418                 static internal extern Status GdipResetTextureTransform (IntPtr texture);
 419                 [DllImport("gdiplus.dll")]
 420                 static internal extern Status GdipRotateTextureTransform (IntPtr texture, float angle, MatrixOrder order);
 421                 [DllImport("gdiplus.dll")]
 422                 static internal extern Status GdipScaleTextureTransform (IntPtr texture, float sx, float sy, MatrixOrder order);
 423                 [DllImport("gdiplus.dll")]
 424                 static internal extern Status GdipTranslateTextureTransform (IntPtr texture, float dx, float dy, MatrixOrder order);
 425
 426                 // PathGradientBrush functions
 427                 [DllImport("gdiplus.dll")]
 428                 static internal extern Status GdipCreatePathGradientFromPath (IntPtr path, out IntPtr brush);
 429                 [DllImport("gdiplus.dll")]
 430                 static internal extern Status GdipCreatePathGradientI (Point [] points, int count, WrapMode wrapMode, out IntPtr brush);
 431                 [DllImport("gdiplus.dll")]
 432                 static internal extern Status GdipCreatePathGradient (PointF [] points, int count, WrapMode wrapMode, out IntPtr brush);
 433                 [DllImport("gdiplus.dll")]
 434                 static internal extern Status GdipGetPathGradientBlendCount (IntPtr brush, out int count);
 435                 [DllImport("gdiplus.dll")]
 436                 static internal extern Status GdipGetPathGradientBlend (IntPtr brush, float [] blend, float [] positions, int count);
 437                 [DllImport("gdiplus.dll")]
 438                 static internal extern Status GdipSetPathGradientBlend (IntPtr brush, float [] blend, float [] positions, int count);
 439                 [DllImport("gdiplus.dll")]
 440                 static internal extern Status GdipGetPathGradientCenterColor (IntPtr brush, out int color);
 441                 [DllImport("gdiplus.dll")]
 442                 static internal extern Status GdipSetPathGradientCenterColor (IntPtr brush, int color);
 443                 [DllImport("gdiplus.dll")]
 444                 static internal extern Status GdipGetPathGradientCenterPoint (IntPtr brush, out PointF point);
 445                 [DllImport("gdiplus.dll")]
 446                 static internal extern Status GdipSetPathGradientCenterPoint (IntPtr brush, ref PointF point);
 447                 [DllImport("gdiplus.dll")]
 448                 static internal extern Status GdipGetPathGradientFocusScales (IntPtr brush, out float xScale, out float yScale);
 449                 [DllImport("gdiplus.dll")]
 450                 static internal extern Status GdipSetPathGradientFocusScales (IntPtr brush, float xScale, float yScale);
 451                 [DllImport("gdiplus.dll")]
 452                 static internal extern Status GdipGetPathGradientPresetBlendCount (IntPtr brush, out int count);
 453                 [DllImport("gdiplus.dll")]
 454                 static internal extern Status GdipGetPathGradientPresetBlend (IntPtr brush, int [] blend, float [] positions, int count);
 455                 [DllImport("gdiplus.dll")]
 456                 static internal extern Status GdipSetPathGradientPresetBlend (IntPtr brush, int [] blend, float [] positions, int count);
 457                 [DllImport("gdiplus.dll")]
 458                 static internal extern Status GdipGetPathGradientRect (IntPtr brush, out RectangleF rect);
 459                 [DllImport("gdiplus.dll")]
 460                 static internal extern Status GdipGetPathGradientSurroundColorCount (IntPtr brush, out int count);
 461                 [DllImport("gdiplus.dll")]
 462                 static internal extern Status GdipGetPathGradientSurroundColorsWithCount (IntPtr brush, int [] color, ref int count);
 463                 [DllImport("gdiplus.dll")]
 464                 static internal extern Status GdipSetPathGradientSurroundColorsWithCount (IntPtr brush, int [] color, ref int count);
 465                 [DllImport("gdiplus.dll")]
 466                 static internal extern Status GdipGetPathGradientTransform (IntPtr brush, IntPtr matrix);
 467                 [DllImport("gdiplus.dll")]
 468                 static internal extern Status GdipSetPathGradientTransform (IntPtr brush, IntPtr matrix);
 469                 [DllImport("gdiplus.dll")]
 470                 static internal extern Status GdipGetPathGradientWrapMode (IntPtr brush, out WrapMode wrapMode);
 471                 [DllImport("gdiplus.dll")]
 472                 static internal extern Status GdipSetPathGradientWrapMode (IntPtr brush, WrapMode wrapMode);
 473                 [DllImport("gdiplus.dll")]
 474                 static internal extern Status GdipSetPathGradientLinearBlend (IntPtr brush, float focus, float scale);
 475                 [DllImport("gdiplus.dll")]
 476                 static internal extern Status GdipSetPathGradientSigmaBlend (IntPtr brush, float focus, float scale);
 477                 [DllImport("gdiplus.dll")]
 478                 static internal extern Status GdipMultiplyPathGradientTransform (IntPtr texture, IntPtr matrix, MatrixOrder order);
 479                 [DllImport("gdiplus.dll")]
 480                 static internal extern Status GdipResetPathGradientTransform (IntPtr brush);
 481                 [DllImport("gdiplus.dll")]
 482                 static internal extern Status GdipRotatePathGradientTransform (IntPtr brush, float angle, MatrixOrder order);
 483                 [DllImport("gdiplus.dll")]
 484                 static internal extern Status GdipScalePathGradientTransform (IntPtr brush, float sx, float sy, MatrixOrder order);
 485                 [DllImport("gdiplus.dll")]
 486                 static internal extern Status GdipTranslatePathGradientTransform (IntPtr brush, float dx, float dy, MatrixOrder order);
 487
 488                 // LinearGradientBrush functions
 489                 [DllImport("gdiplus.dll")]
 490                 static internal extern Status GdipCreateLineBrushI (ref Point point1, ref Point point2, int color1, int color2, WrapMode wrapMode, out IntPtr brush);
 491                 [DllImport("gdiplus.dll")]
 492                 static internal extern Status GdipCreateLineBrush (ref PointF point1, ref PointF point2, int color1, int color2, WrapMode wrapMode, out IntPtr brush);
 493                 [DllImport("gdiplus.dll")]
 494                 static internal extern Status GdipCreateLineBrushFromRectI (ref Rectangle rect, int color1, int color2, LinearGradientMode linearGradientMode, WrapMode wrapMode, out IntPtr brush);
 495                 [DllImport("gdiplus.dll")]
 496                 static internal extern Status GdipCreateLineBrushFromRect (ref RectangleF rect, int color1, int color2, LinearGradientMode linearGradientMode, WrapMode wrapMode, out IntPtr brush);
 497                 [DllImport("gdiplus.dll")]
 498                 static internal extern Status GdipCreateLineBrushFromRectWithAngleI (ref Rectangle rect, int color1, int color2, float angle, bool isAngleScaleable, WrapMode wrapMode, out IntPtr brush);
 499                 [DllImport("gdiplus.dll")]
 500                 static internal extern Status GdipCreateLineBrushFromRectWithAngle (ref RectangleF rect, int color1, int color2, float angle, bool isAngleScaleable, WrapMode wrapMode, out IntPtr brush);
 501                 [DllImport("gdiplus.dll")]
 502                 static internal extern Status GdipGetLineBlendCount (IntPtr brush, out int count);
 503                 [DllImport("gdiplus.dll")]
 504                 static internal extern Status GdipSetLineBlend (IntPtr brush, float [] blend, float [] positions, int count);
 505                 [DllImport("gdiplus.dll")]
 506                 static internal extern Status GdipGetLineBlend (IntPtr brush, float [] blend, float [] positions, int count);
 507                 [DllImport("gdiplus.dll")]
 508                 static internal extern Status GdipSetLineGammaCorrection (IntPtr brush, bool useGammaCorrection);
 509                 [DllImport("gdiplus.dll")]
 510                 static internal extern Status GdipGetLineGammaCorrection (IntPtr brush, out bool useGammaCorrection);
 511                 [DllImport("gdiplus.dll")]
 512                 static internal extern Status GdipGetLinePresetBlendCount (IntPtr brush, out int count);
 513                 [DllImport("gdiplus.dll")]
 514                 static internal extern Status GdipSetLinePresetBlend (IntPtr brush, int [] blend, float [] positions, int count);
 515                 [DllImport("gdiplus.dll")]
 516                 static internal extern Status GdipGetLinePresetBlend (IntPtr brush, int [] blend, float [] positions, int count);
 517                 [DllImport("gdiplus.dll")]
 518                 static internal extern Status GdipSetLineColors (IntPtr brush, int color1, int color2);
 519                 [DllImport("gdiplus.dll")]
 520                 static internal extern Status GdipGetLineColors (IntPtr brush, int [] colors);
 521                 [DllImport("gdiplus.dll")]
 522                 static internal extern Status GdipGetLineRectI (IntPtr brush, out Rectangle rect);
 523                 [DllImport("gdiplus.dll")]
 524                 static internal extern Status GdipGetLineRect (IntPtr brush, out RectangleF rect);
 525                 [DllImport("gdiplus.dll")]
 526                 static internal extern Status GdipSetLineTransform (IntPtr brush, IntPtr matrix);
 527                 [DllImport("gdiplus.dll")]
 528                 static internal extern Status GdipGetLineTransform (IntPtr brush, IntPtr matrix);
 529                 [DllImport("gdiplus.dll")]
 530                 static internal extern Status GdipSetLineWrapMode (IntPtr brush, WrapMode wrapMode);
 531                 [DllImport("gdiplus.dll")]
 532                 static internal extern Status GdipGetLineWrapMode (IntPtr brush, out WrapMode wrapMode);
 533                 [DllImport("gdiplus.dll")]
 534                 static internal extern Status GdipSetLineLinearBlend (IntPtr brush, float focus, float scale);
 535                 [DllImport("gdiplus.dll")]
 536                 static internal extern Status GdipSetLineSigmaBlend (IntPtr brush, float focus, float scale);
 537                 [DllImport("gdiplus.dll")]
 538                 static internal extern Status GdipMultiplyLineTransform (IntPtr brush, IntPtr matrix, MatrixOrder order);
 539                 [DllImport("gdiplus.dll")]
 540                 static internal extern Status GdipResetLineTransform (IntPtr brush);
 541                 [DllImport("gdiplus.dll")]
 542                 static internal extern Status GdipRotateLineTransform (IntPtr brush, float angle, MatrixOrder order);
 543                 [DllImport("gdiplus.dll")]
 544                 static internal extern Status GdipScaleLineTransform (IntPtr brush, float sx, float sy, MatrixOrder order);
 545                 [DllImport("gdiplus.dll")]
 546                 static internal extern Status GdipTranslateLineTransform (IntPtr brush, float dx, float dy, MatrixOrder order);
 547
 548                 // Graphics functions
 549                 [DllImport("gdiplus.dll")]
 550                 static internal extern Status GdipCreateFromHDC(IntPtr hDC, out IntPtr graphics);
 551                 [DllImport("gdiplus.dll")]
 552                 static internal extern Status GdipDeleteGraphics(IntPtr graphics);
 553                 [DllImport("gdiplus.dll")]
 554                 static internal extern Status GdipRestoreGraphics(IntPtr graphics, uint graphicsState);
 555                 [DllImport("gdiplus.dll")]
 556                 static internal extern Status GdipSaveGraphics(IntPtr graphics, out uint state);
 557                 [DllImport("gdiplus.dll")]
 558                 static internal extern Status GdipMultiplyWorldTransform (IntPtr graphics, IntPtr matrix, MatrixOrder order);
 559
 560                 [DllImport("gdiplus.dll")]
 561                 static internal extern Status GdipRotateWorldTransform(IntPtr graphics, float angle, MatrixOrder order);
 562                 [DllImport("gdiplus.dll")]
 563                 static internal extern Status GdipTranslateWorldTransform(IntPtr graphics, float dx, float dy, MatrixOrder order);
 564                 [DllImport("gdiplus.dll")]
 565                 static internal extern Status GdipDrawArc (IntPtr graphics, IntPtr pen, float x, float y, float width, float height, float startAngle, float sweepAngle);
 566                 [DllImport("gdiplus.dll")]
 567                 static internal extern Status GdipDrawArcI (IntPtr graphics, IntPtr pen, int x, int y, int width, int height, float startAngle, float sweepAngle);
 568                 [DllImport("gdiplus.dll")]
 569                 static internal extern Status GdipDrawBezier (IntPtr graphics, IntPtr pen, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4);
 570                 [DllImport("gdiplus.dll")]
 571                 static internal extern Status GdipDrawBezierI (IntPtr graphics, IntPtr pen, int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4);
 572                 [DllImport("gdiplus.dll")]
 573                 static internal extern Status GdipDrawEllipseI (IntPtr graphics, IntPtr pen, int x, int y, int width, int height);
 574                 [DllImport("gdiplus.dll")]
 575                 static internal extern Status GdipDrawEllipse (IntPtr graphics, IntPtr pen, float x, float y, float width, float height);
 576                 [DllImport("gdiplus.dll")]
 577                 static internal extern Status GdipDrawLine (IntPtr graphics, IntPtr pen, float x1, float y1, float x2, float y2);
 578                 [DllImport("gdiplus.dll")]
 579                 static internal extern Status GdipDrawLineI (IntPtr graphics, IntPtr pen, int x1, int y1, int x2, int y2);
 580                 [DllImport ("gdiplus.dll")]
 581                 static internal extern Status GdipDrawLines (IntPtr graphics, IntPtr pen, PointF [] points, int count);
 582                 [DllImport ("gdiplus.dll")]
 583                 static internal extern Status GdipDrawLinesI (IntPtr graphics, IntPtr pen, Point [] points, int count);
 584                 [DllImport ("gdiplus.dll")]
 585                 static internal extern Status GdipDrawPath (IntPtr graphics, IntPtr pen, IntPtr path);
 586                 [DllImport ("gdiplus.dll")]
 587                 static internal extern Status GdipDrawPie (IntPtr graphics, IntPtr pen, float x, float y, float width, float height, float startAngle, float sweepAngle);
 588                 [DllImport ("gdiplus.dll")]
 589                 static internal extern Status GdipDrawPieI (IntPtr graphics, IntPtr pen, int x, int y, int width, int height, float startAngle, float sweepAngle);
 590                 [DllImport ("gdiplus.dll")]
 591                 static internal extern Status GdipDrawPolygon (IntPtr graphics, IntPtr pen, PointF [] points, int count);
 592                 [DllImport ("gdiplus.dll")]
 593                 static internal extern Status GdipDrawPolygonI (IntPtr graphics, IntPtr pen, Point [] points, int count);
 594                 [DllImport ("gdiplus.dll")]
 595                 static internal extern Status GdipDrawRectangle (IntPtr graphics, IntPtr pen, float x, float y, float width, float height);
 596                 [DllImport ("gdiplus.dll")]
 597                 static internal extern Status GdipDrawRectangleI (IntPtr graphics, IntPtr pen, int x, int y, int width, int height);
 598                 [DllImport ("gdiplus.dll")]
 599                 static internal extern Status GdipDrawRectangles (IntPtr graphics, IntPtr pen, RectangleF [] rects, int count);
 600                 [DllImport ("gdiplus.dll")]
 601                 static internal extern Status GdipDrawRectanglesI (IntPtr graphics, IntPtr pen, Rectangle [] rects, int count);
 602                 [DllImport("gdiplus.dll")]
 603                 static internal extern Status GdipFillEllipseI (IntPtr graphics, IntPtr pen, int x, int y, int width, int height);
 604                 [DllImport("gdiplus.dll")]
 605                 static internal extern Status GdipFillEllipse (IntPtr graphics, IntPtr pen, float x, float y, float width, float height);
 606                 [DllImport ("gdiplus.dll")]
 607                 static internal extern  Status GdipFillPolygon (IntPtr graphics, IntPtr brush, PointF [] points, int count, FillMode fillMode);
 608                 [DllImport ("gdiplus.dll")]
 609                 static internal extern  Status GdipFillPolygonI (IntPtr graphics, IntPtr brush, Point [] points, int count, FillMode fillMode);
 610                 [DllImport ("gdiplus.dll")]
 611                 static internal extern  Status GdipFillPolygon2 (IntPtr graphics, IntPtr brush, PointF [] points, int count);
 612                 [DllImport ("gdiplus.dll")]
 613                 static internal extern  Status GdipFillPolygon2I (IntPtr graphics, IntPtr brush, Point [] points, int count);
 614                 [DllImport("gdiplus.dll")]
 615                 static internal extern Status GdipFillRectangle (IntPtr graphics, IntPtr brush, float x1, float y1, float x2, float y2);
 616                 [DllImport("gdiplus.dll")]
 617                 static internal extern Status GdipFillRectangleI (IntPtr graphics, IntPtr brush, int x1, int y1, int x2, int y2);
 618                 [DllImport("gdiplus.dll")]
 619                 static internal extern Status GdipFillRectangles (IntPtr graphics, IntPtr brush, RectangleF [] rects, int count);
 620                 [DllImport("gdiplus.dll")]
 621                 static internal extern Status GdipFillRectanglesI (IntPtr graphics, IntPtr brush, Rectangle [] rects, int count);
 622                 [DllImport("gdiplus.dll", CharSet=CharSet.Unicode)]
 623                 static internal extern Status GdipDrawString (IntPtr graphics, string text, int len, IntPtr font, ref RectangleF rc, IntPtr format, IntPtr brush);
 624                 [DllImport("gdiplus.dll")]
 625                 static internal extern Status GdipGetDC (IntPtr graphics, out IntPtr hdc);
 626                 [DllImport("gdiplus.dll")]
 627                 static internal extern Status GdipReleaseDC (IntPtr graphics, IntPtr hdc);
 628                 [DllImport("gdiplus.dll")]
 629                 static internal extern Status GdipDrawImageRectI (IntPtr graphics, IntPtr image, int x, int y, int width, int height);
 630                 [DllImport ("gdiplus.dll")]
 631                 static internal extern Status GdipGetRenderingOrigin (IntPtr graphics, out int x, out int y);
 632                 [DllImport ("gdiplus.dll")]
 633                 static internal extern Status GdipSetRenderingOrigin (IntPtr graphics, int x, int y);
 634                 [DllImport("gdiplus.dll")]
 635                 internal static extern Status GdipCloneBitmapArea (float x, float y, float width, float height, PixelFormat format, IntPtr original, out IntPtr bitmap);
 636                 [DllImport("gdiplus.dll")]
 637                 internal static extern Status GdipCloneBitmapAreaI (int x, int y, int width, int height, PixelFormat format, IntPtr original, out IntPtr bitmap);
 638                 [DllImport("gdiplus.dll")]
 639                 internal static extern Status GdipResetWorldTransform (IntPtr graphics);
 640                 [DllImport("gdiplus.dll")]
 641                 internal static extern Status GdipSetWorldTransform (IntPtr graphics, IntPtr matrix);
 642                 [DllImport("gdiplus.dll")]
 643                 internal static extern Status GdipGetWorldTransform (IntPtr graphics, IntPtr matrix);
 644                 [DllImport("gdiplus.dll")]
 645                 internal static extern Status GdipScaleWorldTransform (IntPtr graphics, float sx, float sy, MatrixOrder order);
 646                 [DllImport("gdiplus.dll")]
 647                 internal static extern Status GdipGraphicsClear(IntPtr graphics, int argb);
 648                 [DllImport("gdiplus.dll")]
 649                 internal static extern Status GdipDrawClosedCurve(IntPtr graphics, IntPtr pen, PointF [] points, int count);
 650                 [DllImport("gdiplus.dll")]
 651                 internal static extern Status GdipDrawClosedCurveI(IntPtr graphics, IntPtr pen, Point [] points, int count);
 652                 [DllImport("gdiplus.dll")]
 653                 internal static extern Status GdipDrawClosedCurve2(IntPtr graphics, IntPtr pen, PointF [] points, int count, float tension);
 654                 [DllImport("gdiplus.dll")]
 655                 internal static extern Status GdipDrawClosedCurve2I(IntPtr graphics, IntPtr pen, Point [] points, int count, float tension);
 656                 [DllImport("gdiplus.dll")]
 657                 internal static extern Status GdipDrawCurve(IntPtr graphics, IntPtr pen, PointF [] points, int count);
 658                 [DllImport("gdiplus.dll")]
 659                 internal static extern Status GdipDrawCurveI(IntPtr graphics, IntPtr pen, Point [] points, int count);
 660                 [DllImport("gdiplus.dll")]
 661                 internal static extern Status GdipDrawCurve2(IntPtr graphics, IntPtr pen, PointF [] points, int count, float tension);
 662                 [DllImport("gdiplus.dll")]
 663                 internal static extern Status GdipDrawCurve2I(IntPtr graphics, IntPtr pen, Point [] points, int count, float tension);
 664                 [DllImport("gdiplus.dll")]
 665                 internal static extern Status GdipDrawCurve3(IntPtr graphics, IntPtr pen, PointF [] points, int count, int offset, int numberOfSegments, float tension);
 666                 [DllImport("gdiplus.dll")]
 667                 internal static extern Status GdipDrawCurve3I(IntPtr graphics, IntPtr pen, Point [] points, int count, int offset, int numberOfSegments, float tension);
 668                 [DllImport("gdiplus.dll")]
 669                 internal static extern Status GdipSetClipRect(IntPtr graphics, float x, float y, float width, float height, CombineMode combineMode);
 670                 [DllImport("gdiplus.dll")]
 671                 internal static extern Status GdipSetClipRectI(IntPtr graphics, int x, int y, int width, int height, CombineMode combineMode);
 672                 [DllImport("gdiplus.dll")]
 673                 internal static extern Status GdipSetClipPath(IntPtr graphics, IntPtr path, CombineMode combineMode);
 674                 [DllImport("gdiplus.dll")]
 675                 internal static extern Status GdipSetClipRegion(IntPtr graphics, IntPtr region, CombineMode combineMode);
 676                 [DllImport("gdiplus.dll")]
 677                 internal static extern Status GdipSetClipGraphics(IntPtr graphics, IntPtr srcgraphics, CombineMode combineMode);
 678                 [DllImport("gdiplus.dll")]
 679                 internal static extern Status GdipResetClip(IntPtr graphics);
 680                 [DllImport("gdiplus.dll")]
 681                 internal static extern Status GdipEndContainer(IntPtr graphics, uint state);
 682                 [DllImport("gdiplus.dll")]
 683                 internal static extern Status GdipGetClip (IntPtr graphics, IntPtr region);
 684
 685                 [DllImport("gdiplus.dll")]
 686                 internal static extern Status GdipFillClosedCurve(IntPtr graphics, IntPtr brush, PointF [] points, int count);
 687
 688                 [DllImport("gdiplus.dll")]
 689                 internal static extern Status GdipFillClosedCurveI(IntPtr graphics, IntPtr brush, Point [] points, int count);
 690
 691                 [DllImport("gdiplus.dll")]
 692                 internal static extern Status GdipFillClosedCurve2(IntPtr graphics, IntPtr brush,
 693                                           PointF [] points, int count, float tension, FillMode fillMode);
 694
 695                 [DllImport("gdiplus.dll")]
 696                 internal static extern Status GdipFillClosedCurve2I(IntPtr graphics, IntPtr brush,
 697                               Point [] points, int count, float tension, FillMode fillMode);
 698
 699                 [DllImport("gdiplus.dll")]
 700                 internal static extern Status GdipFillPie(IntPtr graphics, IntPtr brush, float x, float y,
 701                 float width, float height, float startAngle, float sweepAngle);
 702
 703                 [DllImport("gdiplus.dll")]
 704                 internal static extern Status GdipFillPieI(IntPtr graphics, IntPtr brush, int x, int y,
 705              int width, int height, float startAngle, float sweepAngle);
 706
 707                 [DllImport("gdiplus.dll")]
 708                 internal static extern Status GdipFillPath(IntPtr graphics, IntPtr brush, IntPtr path);
 709
 710                 [DllImport("gdiplus.dll")]
 711                 internal static extern Status GdipGetNearestColor(IntPtr graphics,  out int argb);
 712
 713                 [DllImport("gdiplus.dll")]
 714                 internal static extern Status GdipIsVisiblePoint(IntPtr graphics, float x, float y, out bool result);
 715
 716                 [DllImport("gdiplus.dll")]
 717                 internal static extern Status GdipIsVisiblePointI(IntPtr graphics, int x, int y, out bool result);
 718
 719                 [DllImport("gdiplus.dll")]
 720                 internal static extern Status GdipIsVisibleRect(IntPtr graphics, float x, float y,
 721                            float width, float height, out bool result);
 722
 723                 [DllImport("gdiplus.dll")]
 724                 internal static extern Status GdipIsVisibleRectI(IntPtr graphics, int x, int y,
 725                            int width, int height, out bool result);
 726
 727                 [DllImport("gdiplus.dll")]
 728                 internal static extern Status GdipTransformPoints(IntPtr graphics, CoordinateSpace destSpace,
 729                              CoordinateSpace srcSpace, IntPtr points,  int count);
 730
 731                 [DllImport("gdiplus.dll")]
 732                 internal static extern Status GdipTransformPointsI(IntPtr graphics, CoordinateSpace destSpace,
 733                              CoordinateSpace srcSpace, IntPtr points, int count);
 734
 735         [DllImport("gdiplus.dll")]
 736                 internal static extern Status GdipTranslateClip(IntPtr graphics, float dx, float dy);
 737                 [DllImport("gdiplus.dll")]
 738                 internal static extern Status GdipTranslateClipI(IntPtr graphics, int dx, int dy);
 739                 [DllImport("gdiplus.dll")]
 740                 internal static extern Status GdipGetClipBounds(IntPtr graphics, out RectangleF rect);
 741                 [DllImport("gdiplus.dll")]
 742                 internal static extern Status GdipSetCompositingMode(IntPtr graphics, CompositingMode compositingMode);
 743                 [DllImport("gdiplus.dll")]
 744                 internal static extern Status GdipGetCompositingMode(IntPtr graphics, out CompositingMode compositingMode);
 745                 [DllImport("gdiplus.dll")]
 746                 internal static extern Status GdipSetCompositingQuality(IntPtr graphics, CompositingQuality compositingQuality);
 747                 [DllImport("gdiplus.dll")]
 748                 internal static extern Status GdipGetCompositingQuality(IntPtr graphics, out CompositingQuality compositingQuality);
 749                 [DllImport("gdiplus.dll")]
 750                 internal static extern Status GdipSetInterpolationMode(IntPtr graphics, InterpolationMode interpolationMode);
 751                 [DllImport("gdiplus.dll")]
 752                 internal static extern Status GdipGetInterpolationMode(IntPtr graphics, out InterpolationMode interpolationMode);
 753                 [DllImport("gdiplus.dll")]
 754                 internal static extern Status GdipGetDpiX(IntPtr graphics, out float dpi);
 755                 [DllImport("gdiplus.dll")]
 756                 internal static extern Status GdipGetDpiY(IntPtr graphics, out float dpi);
 757                 [DllImport("gdiplus.dll")]
 758                 internal static extern Status GdipIsClipEmpty(IntPtr graphics, out bool result);
 759                 [DllImport("gdiplus.dll")]
 760                 internal static extern Status GdipIsVisibleClipEmpty(IntPtr graphics, out bool result);
 761                 [DllImport("gdiplus.dll")]
 762                 internal static extern Status GdipGetPageUnit(IntPtr graphics, out GraphicsUnit unit);
 763                 [DllImport("gdiplus.dll")]
 764                 internal static extern Status GdipGetPageScale(IntPtr graphics, out float scale);
 765                 [DllImport("gdiplus.dll")]
 766                 internal static extern Status GdipSetPageUnit(IntPtr graphics, GraphicsUnit unit);
 767                 [DllImport("gdiplus.dll")]
 768                 internal static extern Status GdipSetPageScale(IntPtr graphics, float scale);
 769                 [DllImport("gdiplus.dll")]
 770                 internal static extern Status GdipSetPixelOffsetMode(IntPtr graphics, PixelOffsetMode pixelOffsetMode);
 771                 [DllImport("gdiplus.dll")]
 772                 internal static extern Status GdipGetPixelOffsetMode(IntPtr graphics, out PixelOffsetMode pixelOffsetMode);
 773                 [DllImport("gdiplus.dll")]
 774                 internal static extern Status GdipSetSmoothingMode(IntPtr graphics, SmoothingMode smoothingMode);
 775                 [DllImport("gdiplus.dll")]
 776                 internal static extern Status GdipGetSmoothingMode(IntPtr graphics, out SmoothingMode smoothingMode);
 777                 [DllImport("gdiplus.dll")]
 778                 internal static extern Status GdipSetTextContrast(IntPtr graphics, int contrast);
 779                 [DllImport("gdiplus.dll")]
 780                 internal static extern Status GdipGetTextContrast(IntPtr graphics, out int contrast);
 781                 [DllImport("gdiplus.dll")]
 782                 internal static extern Status GdipSetTextRenderingHint(IntPtr graphics, TextRenderingHint mode);
 783                 [DllImport("gdiplus.dll")]
 784                 internal static extern Status GdipGetTextRenderingHint(IntPtr graphics, out TextRenderingHint mode);
 785                 [DllImport("gdiplus.dll")]
 786                 internal static extern Status GdipGetVisibleClipBounds(IntPtr graphics, out RectangleF rect);
 787
 788                 [DllImport("gdiplus.dll")]
 789                 internal static extern Status GdipFlush(IntPtr graphics, FlushIntention intention);
 790
 791                 [DllImport("gdiplus.dll", CharSet=CharSet.Unicode)]
 792                 internal static extern Status GdipAddPathString (IntPtr path, string s, int lenght, IntPtr family, int style, float emSize, ref RectangleF layoutRect, IntPtr format);
 793                 [DllImport("gdiplus.dll", CharSet=CharSet.Unicode)]
 794                 internal static extern Status GdipAddPathStringI (IntPtr path, string s, int lenght, IntPtr family, int style, float emSize, ref Rectangle layoutRect, IntPtr format);
 795
 796
 797                 // Pen functions
 798                 [DllImport("gdiplus.dll")]
 799                 internal static extern Status GdipCreatePen1 (int argb, float width, GraphicsUnit unit, out IntPtr pen);
 800                 [DllImport("gdiplus.dll")]
 801                 internal static extern Status GdipCreatePen2 (IntPtr brush, float width, GraphicsUnit unit, out IntPtr pen);
 802                 [DllImport("gdiplus.dll")]
 803                 internal static extern Status GdipClonePen (IntPtr pen, out IntPtr clonepen);
 804                 [DllImport("gdiplus.dll")]
 805                 internal static extern Status GdipDeletePen(IntPtr pen);
 806                 [DllImport("gdiplus.dll")]
 807                 internal static extern Status GdipSetPenBrushFill (IntPtr pen, IntPtr brush);
 808                 [DllImport("gdiplus.dll")]
 809                 internal static extern Status GdipGetPenBrushFill (IntPtr pen, out IntPtr brush);
 810                 [DllImport("gdiplus.dll")]
 811                 internal static extern Status GdipGetPenFillType (IntPtr pen, out PenType type);
 812                 [DllImport("gdiplus.dll")]
 813                 internal static extern Status GdipSetPenColor (IntPtr pen, int color);
 814                 [DllImport("gdiplus.dll")]
 815                 internal static extern Status GdipGetPenColor (IntPtr pen, out int color);
 816                 [DllImport("gdiplus.dll")]
 817                 internal static extern Status GdipSetPenCompoundArray (IntPtr pen, float[] dash, int count);
 818                 [DllImport("gdiplus.dll")]
 819                 internal static extern Status GdipGetPenCompoundArray (IntPtr pen, float[] dash, int count);
 820                 [DllImport("gdiplus.dll")]
 821                 internal static extern Status GdipGetPenCompoundCount (IntPtr pen, out int count);
 822                 [DllImport("gdiplus.dll")]
 823                 internal static extern Status GdipSetPenDashCap197819 (IntPtr pen, DashCap dashCap);
 824                 [DllImport("gdiplus.dll")]
 825                 internal static extern Status GdipGetPenDashCap197819 (IntPtr pen, out DashCap dashCap);
 826                 [DllImport("gdiplus.dll")]
 827                 internal static extern Status GdipSetPenDashStyle (IntPtr pen, DashStyle dashStyle);
 828                 [DllImport("gdiplus.dll")]
 829                 internal static extern Status GdipGetPenDashStyle (IntPtr pen, out DashStyle dashStyle);
 830                 [DllImport("gdiplus.dll")]
 831                 internal static extern Status GdipSetPenDashOffset (IntPtr pen, float offset);
 832                 [DllImport("gdiplus.dll")]
 833                 internal static extern Status GdipGetPenDashOffset (IntPtr pen, out float offset);
 834                 [DllImport("gdiplus.dll")]
 835                 internal static extern Status GdipGetPenDashCount (IntPtr pen, out int count);
 836                 [DllImport("gdiplus.dll")]
 837                 internal static extern Status GdipSetPenDashArray (IntPtr pen, float[] dash, int count);
 838                 [DllImport("gdiplus.dll")]
 839                 internal static extern Status GdipGetPenDashArray (IntPtr pen, float[] dash, int count);
 840                 [DllImport("gdiplus.dll")]
 841                 internal static extern Status GdipSetPenMiterLimit (IntPtr pen, float miterLimit);
 842                 [DllImport("gdiplus.dll")]
 843                 internal static extern Status GdipGetPenMiterLimit (IntPtr pen, out float miterLimit);
 844                 [DllImport("gdiplus.dll")]
 845                 internal static extern Status GdipSetPenLineJoin (IntPtr pen, LineJoin lineJoin);
 846                 [DllImport("gdiplus.dll")]
 847                 internal static extern Status GdipGetPenLineJoin (IntPtr pen, out LineJoin lineJoin);
 848                 [DllImport("gdiplus.dll")]
 849                 internal static extern Status GdipSetPenLineCap197819 (IntPtr pen, LineCap startCap, LineCap endCap, DashCap dashCap);
 850                 [DllImport("gdiplus.dll")]
 851                 internal static extern Status GdipSetPenMode (IntPtr pen, PenAlignment alignment);
 852                 [DllImport("gdiplus.dll")]
 853                 internal static extern Status GdipGetPenMode (IntPtr pen, out PenAlignment alignment);
 854                 [DllImport("gdiplus.dll")]
 855                 internal static extern Status GdipSetPenStartCap (IntPtr pen, LineCap startCap);
 856                 [DllImport("gdiplus.dll")]
 857                 internal static extern Status GdipGetPenStartCap (IntPtr pen, out LineCap startCap);
 858                 [DllImport("gdiplus.dll")]
 859                 internal static extern Status GdipSetPenEndCap (IntPtr pen, LineCap endCap);
 860                 [DllImport("gdiplus.dll")]
 861                 internal static extern Status GdipGetPenEndCap (IntPtr pen, out LineCap endCap);
 862                 [DllImport("gdiplus.dll")]
 863                 internal static extern Status GdipSetPenCustomStartCap (IntPtr pen, IntPtr customCap);
 864                 [DllImport("gdiplus.dll")]
 865                 internal static extern Status GdipGetPenCustomStartCap (IntPtr pen, out IntPtr customCap);
 866                 [DllImport("gdiplus.dll")]
 867                 internal static extern Status GdipSetPenCustomEndCap (IntPtr pen, IntPtr customCap);
 868                 [DllImport("gdiplus.dll")]
 869                 internal static extern Status GdipGetPenCustomEndCap (IntPtr pen, out IntPtr customCap);
 870                 [DllImport("gdiplus.dll")]
 871                 internal static extern Status GdipSetPenTransform (IntPtr pen, IntPtr matrix);
 872                 [DllImport("gdiplus.dll")]
 873                 internal static extern Status GdipGetPenTransform (IntPtr pen, IntPtr matrix);
 874                 [DllImport("gdiplus.dll")]
 875                 internal static extern Status GdipSetPenWidth (IntPtr pen, float width);
 876                 [DllImport("gdiplus.dll")]
 877                 internal static extern Status GdipGetPenWidth (IntPtr pen, out float width);
 878                 [DllImport("gdiplus.dll")]
 879                 internal static extern Status GdipResetPenTransform (IntPtr pen);
 880                 [DllImport("gdiplus.dll")]
 881                 internal static extern Status GdipMultiplyPenTransform (IntPtr pen, IntPtr matrix, MatrixOrder order);
 882                 [DllImport("gdiplus.dll")]
 883                 internal static extern Status GdipRotatePenTransform (IntPtr pen, float angle, MatrixOrder order);
 884                 [DllImport("gdiplus.dll")]
 885                 internal static extern Status GdipScalePenTransform (IntPtr pen, float sx, float sy, MatrixOrder order);
 886                 [DllImport("gdiplus.dll")]
 887                 internal static extern Status GdipTranslatePenTransform (IntPtr pen, float dx, float dy, MatrixOrder order);
 888
 889                 // CustomLineCap functions
 890                 [DllImport("gdiplus.dll")]
 891                 internal static extern Status GdipCreateCustomLineCap (IntPtr fillPath, IntPtr strokePath, LineCap baseCap, float baseInset, out IntPtr customCap);
 892                 [DllImport("gdiplus.dll")]
 893                 internal static extern Status GdipDeleteCustomLineCap (IntPtr customCap);
 894                 [DllImport("gdiplus.dll")]
 895                 internal static extern Status GdipCloneCustomLineCap (IntPtr customCap, out IntPtr clonedCap);
 896                 [DllImport("gdiplus.dll")]
 897                 internal static extern Status GdipSetCustomLineCapStrokeCaps (IntPtr customCap, LineCap startCap, LineCap endCap);
 898                 [DllImport("gdiplus.dll")]
 899                 internal static extern Status GdipGetCustomLineCapStrokeCaps (IntPtr customCap, out LineCap startCap, out LineCap endCap);
 900                 [DllImport("gdiplus.dll")]
 901                 internal static extern Status GdipSetCustomLineCapStrokeJoin (IntPtr customCap, LineJoin lineJoin);
 902                 [DllImport("gdiplus.dll")]
 903                 internal static extern Status GdipGetCustomLineCapStrokeJoin (IntPtr customCap, out LineJoin lineJoin);
 904                 [DllImport("gdiplus.dll")]
 905                 internal static extern Status GdipSetCustomLineCapBaseCap (IntPtr customCap, LineCap baseCap);
 906                 [DllImport("gdiplus.dll")]
 907                 internal static extern Status GdipGetCustomLineCapBaseCap (IntPtr customCap, out LineCap baseCap);
 908                 [DllImport("gdiplus.dll")]
 909                 internal static extern Status GdipSetCustomLineCapBaseInset (IntPtr customCap, float inset);
 910                 [DllImport("gdiplus.dll")]
 911                 internal static extern Status GdipGetCustomLineCapBaseInset (IntPtr customCap, out float inset);
 912                 [DllImport("gdiplus.dll")]
 913                 internal static extern Status GdipSetCustomLineCapWidthScale (IntPtr customCap, float widthScale);
 914                 [DllImport("gdiplus.dll")]
 915                 internal static extern Status GdipGetCustomLineCapWidthScale (IntPtr customCap, out float widthScale);
 916
 917                 // AdjustableArrowCap functions
 918                 [DllImport("gdiplus.dll")]
 919                 internal static extern Status GdipCreateAdjustableArrowCap (float height, float width, bool isFilled, out IntPtr arrowCap);
 920                 [DllImport("gdiplus.dll")]
 921                 internal static extern Status GdipSetAdjustableArrowCapHeight (IntPtr arrowCap, float height);
 922                 [DllImport("gdiplus.dll")]
 923                 internal static extern Status GdipGetAdjustableArrowCapHeight (IntPtr arrowCap, out float height);
 924                 [DllImport("gdiplus.dll")]
 925                 internal static extern Status GdipSetAdjustableArrowCapWidth (IntPtr arrowCap, float width);
 926                 [DllImport("gdiplus.dll")]
 927                 internal static extern Status GdipGetAdjustableArrowCapWidth (IntPtr arrowCap, out float width);
 928                 [DllImport("gdiplus.dll")]
 929                 internal static extern Status GdipSetAdjustableArrowCapMiddleInset (IntPtr arrowCap, float middleInset);
 930                 [DllImport("gdiplus.dll")]
 931                 internal static extern Status GdipGetAdjustableArrowCapMiddleInset (IntPtr arrowCap, out float middleInset);
 932                 [DllImport("gdiplus.dll")]
 933                 internal static extern Status GdipSetAdjustableArrowCapFillState (IntPtr arrowCap, bool isFilled);
 934                 [DllImport("gdiplus.dll")]
 935                 internal static extern Status GdipGetAdjustableArrowCapFillState (IntPtr arrowCap, out bool isFilled);
 936
 937
 938                 [DllImport("gdiplus.dll")]
 939                 internal static extern Status GdipCreateFromHWND (IntPtr hwnd, out IntPtr graphics);
 940
 941                 [DllImport("gdiplus.dll", CharSet=CharSet.Unicode)]
 942                 internal unsafe static extern Status GdipMeasureString(IntPtr graphics, string str, int length,
 943                         IntPtr font, ref RectangleF layoutRect, IntPtr stringFormat, out RectangleF boundingBox,
 944                         int *codepointsFitted, int *linesFilled);
 945
 946                 [DllImport("gdiplus.dll", CharSet=CharSet.Unicode)]
 947                 internal static extern Status GdipMeasureCharacterRanges (IntPtr graphics, string str, int length, IntPtr font,
 948                         ref RectangleF layoutRect, IntPtr stringFormat, int regcount, out IntPtr regions);
 949
 950                 [DllImport("gdiplus.dll")]
 951                 internal static extern Status GdipSetStringFormatMeasurableCharacterRanges (IntPtr native,
 952                         int cnt, CharacterRange [] range);
 953
 954                 [DllImport("gdiplus.dll")]
 955                 internal static extern Status GdipGetStringFormatMeasurableCharacterRangeCount (IntPtr native,
 956                         out int cnt);
 957
 958                 // Bitmap functions
 959                 [DllImport("gdiplus.dll")]
 960                 internal static extern Status GdipCreateBitmapFromScan0 (int width, int height, int stride, PixelFormat format, IntPtr scan0, out IntPtr bmp);
 961
 962                 [DllImport("gdiplus.dll")]
 963                 internal static extern Status GdipCreateBitmapFromGraphics (int width, int height, IntPtr target, out IntPtr bitmap);
 964
 965                 [DllImport("gdiplus.dll")]
 966                 internal static extern Status GdipBitmapLockBits (IntPtr bmp, ref Rectangle rc, ImageLockMode flags, PixelFormat format, [In, Out] BitmapData bmpData);
 967
 968                 [DllImport("gdiplus.dll")]
 969                 internal static extern Status GdipBitmapSetResolution(IntPtr bmp, float xdpi, float ydpi);
 970
 971                 [DllImport("gdiplus.dll")]
 972                 internal static extern Status GdipBitmapUnlockBits (IntPtr bmp, [In,Out] BitmapData bmpData);
 973
 974                 [DllImport("gdiplus.dll")]
 975                 internal static extern Status GdipBitmapGetPixel (IntPtr bmp, int x, int y, out int argb);
 976
 977                 [DllImport("gdiplus.dll")]
 978                 internal static extern Status GdipBitmapSetPixel (IntPtr bmp, int x, int y, int argb);
 979
 980                 // Image functions
 981                 [DllImport("gdiplus.dll", CharSet=CharSet.Auto)]
 982                 internal static extern Status GdipLoadImageFromFile ( [MarshalAs(UnmanagedType.LPWStr)] string filename, out IntPtr image );
 983
 984 #if !TEST
 985                 // Stream functions for Win32 (original Win32 ones)
 986                 [DllImport("gdiplus.dll", ExactSpelling=true, CharSet=CharSet.Unicode)]
 987                 internal static extern Status GdipLoadImageFromStream([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef=typeof(ComIStreamMarshaler))] IStream stream, out IntPtr image);
 988
 989                 [DllImport("gdiplus.dll", ExactSpelling=true, CharSet=CharSet.Unicode)]
 990                 internal static extern Status GdipSaveImageToStream(HandleRef image, [MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef=typeof(ComIStreamMarshaler))] IStream stream, [In()] ref Guid clsidEncoder, HandleRef encoderParams);
 991 #endif
 992
 993                 [DllImport("gdiplus.dll")]
 994                 internal static extern Status GdipCloneImage(IntPtr image, out IntPtr imageclone);
 995
 996                 [DllImport("gdiplus.dll", CharSet=CharSet.Auto)]
 997                 internal static extern Status GdipLoadImageFromFileICM ( [MarshalAs(UnmanagedType.LPWStr)] string filename, out IntPtr image );
 998
 999                 [DllImport("gdiplus.dll")]
1000                 internal static extern Status GdipCreateBitmapFromHBITMAP ( IntPtr hBitMap, IntPtr gdiPalette, out IntPtr image );
1001
1002                 [DllImport("gdiplus.dll")]
1003                 internal static extern Status GdipDisposeImage ( IntPtr image );
1004
1005                 [DllImport("gdiplus.dll")]
1006                 internal static extern Status GdipGetImageFlags(IntPtr image, out int flag);
1007
1008                 [DllImport ("gdiplus.dll")]
1009                 internal static extern Status GdipGetImageType (IntPtr image, out ImageType type);
1010
1011                 [DllImport("gdiplus.dll")]
1012                 internal static extern Status GdipImageGetFrameDimensionsCount ( IntPtr image, out uint count );
1013
1014                 [DllImport("gdiplus.dll")]
1015                 internal static extern Status GdipImageGetFrameDimensionsList ( IntPtr image, [Out] Guid [] dimensionIDs, uint count );
1016
1017                 [DllImport("gdiplus.dll")]
1018                 internal static extern Status GdipGetImageHeight (IntPtr image, out uint height);
1019
1020                 [DllImport("gdiplus.dll")]
1021                 internal static extern Status GdipGetImageHorizontalResolution ( IntPtr image, out float resolution );
1022
1023                 [DllImport("gdiplus.dll")]
1024                 internal static extern Status GdipGetImagePaletteSize ( IntPtr image, out int size );
1025
1026                 [DllImport("gdiplus.dll")]
1027                 internal static extern Status GdipGetImagePalette (IntPtr image, IntPtr palette, int size);
1028
1029                 [DllImport("gdiplus.dll")]
1030                 internal static extern Status GdipSetImagePalette (IntPtr image, IntPtr palette);
1031
1032                 [DllImport("gdiplus.dll")]
1033                 internal static extern Status GdipGetImageDimension ( IntPtr image, out float width, out float height );
1034
1035                 [DllImport("gdiplus.dll")]
1036                 internal static extern Status GdipGetImagePixelFormat ( IntPtr image, out PixelFormat format );
1037
1038                 [DllImport("gdiplus.dll")]
1039                 internal static extern Status GdipGetPropertyCount (IntPtr image, out uint propNumbers);
1040
1041                 [DllImport("gdiplus.dll")]
1042                 internal static extern Status GdipGetPropertyIdList (IntPtr image, uint propNumbers, [Out] int [] list);
1043
1044                 [DllImport("gdiplus.dll")]
1045                 internal static extern Status GdipGetPropertySize (IntPtr image, out int bufferSize, out int propNumbers);
1046
1047                 [DllImport("gdiplus.dll")]
1048                 internal static extern Status GdipGetAllPropertyItems (IntPtr image, int bufferSize, int propNumbers, IntPtr items);
1049
1050                 [DllImport("gdiplus.dll")]
1051                 internal static extern Status GdipGetImageRawFormat ( IntPtr image, out Guid format );
1052
1053                 [DllImport("gdiplus.dll")]
1054                 internal static extern Status GdipGetImageVerticalResolution ( IntPtr image, out float resolution );
1055
1056                 [DllImport("gdiplus.dll")]
1057                 internal static extern Status GdipGetImageWidth (IntPtr image, out uint width);
1058
1059                 [DllImport("gdiplus.dll")]
1060                 internal static extern Status GdipGetImageBounds ( IntPtr image, out RectangleF source, ref GraphicsUnit unit );
1061
1062                 [DllImport("gdiplus.dll")]
1063                 internal static extern Status GdipGetEncoderParameterListSize ( IntPtr image, ref Guid encoder, out uint size );
1064
1065                 [DllImport("gdiplus.dll")]
1066                 internal static extern Status GdipGetEncoderParameterList ( IntPtr image, ref Guid encoder, uint size, IntPtr buffer );
1067
1068                 [DllImport("gdiplus.dll")]
1069                 internal static extern Status GdipImageGetFrameCount (IntPtr image, ref Guid guidDimension, out uint count );
1070
1071                 [DllImport("gdiplus.dll")]
1072                 internal static extern Status GdipImageSelectActiveFrame (IntPtr image, ref Guid guidDimension, int frameIndex);
1073
1074                 [DllImport("gdiplus.dll")]
1075                 internal static extern Status GdipGetPropertyItemSize (IntPtr image, int propertyID, out int propertySize);
1076
1077                 [DllImport("gdiplus.dll")]
1078                 internal static extern Status GdipGetPropertyItem (IntPtr image, int propertyID, int propertySize, IntPtr buffer);
1079
1080                 [DllImport("gdiplus.dll")]
1081                 internal static extern Status GdipRemovePropertyItem (IntPtr image, int propertyId);
1082
1083                 [DllImport("gdiplus.dll")]
1084                 internal unsafe static extern Status GdipSetPropertyItem (IntPtr image, GdipPropertyItem *propertyItem);
1085
1086                 [DllImport("gdiplus.dll")]
1087                 internal static extern Status GdipGetImageThumbnail ( IntPtr image, uint width, uint height, out IntPtr thumbImage, IntPtr callback, IntPtr callBackData );
1088
1089                 [DllImport("gdiplus.dll")]
1090                 internal static extern Status GdipImageRotateFlip ( IntPtr image, RotateFlipType rotateFlipType );
1091
1092                 [DllImport("gdiplus.dll", CharSet=CharSet.Unicode)]
1093                 internal static extern Status GdipSaveImageToFile (IntPtr image, string filename,  ref Guid encoderClsID, IntPtr encoderParameters);
1094
1095                 [DllImport("gdiplus.dll")]
1096                 internal static extern Status GdipSaveAdd ( IntPtr image, IntPtr encoderParameters );
1097
1098                 [DllImport("gdiplus.dll")]
1099                 internal static extern Status GdipSaveAddImage (IntPtr image, IntPtr imagenew, IntPtr encoderParameters);
1100
1101                 [DllImport("gdiplus.dll")]
1102                 internal static extern Status GdipDrawImageI (IntPtr graphics, IntPtr image, int x, int y);
1103                 [DllImport("gdiplus.dll")]
1104                 internal static extern Status GdipGetImageGraphicsContext (IntPtr image, out IntPtr graphics);
1105                 [DllImport("gdiplus.dll")]
1106                 internal static extern Status GdipDrawImage (IntPtr graphics, IntPtr image, float x, float y);
1107
1108                 [DllImport("gdiplus.dll")]
1109                 internal static extern Status GdipBeginContainer (IntPtr graphics, ref RectangleF dstrect, ref RectangleF srcrect, GraphicsUnit unit, out uint state);
1110                 [DllImport("gdiplus.dll")]
1111                 internal static extern Status GdipBeginContainerI (IntPtr graphics, ref Rectangle dstrect, ref Rectangle srcrect, GraphicsUnit unit, out uint state);
1112                 [DllImport("gdiplus.dll")]
1113                 internal static extern Status GdipBeginContainer2 (IntPtr graphics, out uint state);
1114
1115                 [DllImport("gdiplus.dll")]
1116                 internal static extern Status GdipDrawImagePoints (IntPtr graphics, IntPtr image, PointF [] destPoints, int count);
1117
1118
1119                 [DllImport("gdiplus.dll")]
1120                 internal static extern Status GdipDrawImagePointsI (IntPtr graphics, IntPtr image,  Point [] destPoints, int count);
1121
1122                 [DllImport("gdiplus.dll")]
1123                 internal static extern Status GdipDrawImageRectRectI (IntPtr graphics, IntPtr image,
1124                                 int dstx, int dsty, int dstwidth, int dstheight,
1125                                 int srcx, int srcy, int srcwidth, int srcheight,
1126                                 GraphicsUnit srcUnit, IntPtr imageattr, Graphics.DrawImageAbort callback, IntPtr callbackData);
1127
1128                 [DllImport("gdiplus.dll")]
1129                 internal static extern Status GdipDrawImageRectRect (IntPtr graphics, IntPtr image,
1130                                 float dstx, float dsty, float dstwidth, float dstheight,
1131                                 float srcx, float srcy, float srcwidth, float srcheight,
1132                                 GraphicsUnit srcUnit, IntPtr imageattr, Graphics.DrawImageAbort callback, IntPtr callbackData);
1133
1134                 [DllImport("gdiplus.dll")]
1135                 internal static extern Status GdipDrawImagePointsRectI (IntPtr graphics, IntPtr image,
1136                          Point [] destPoints, int count, int srcx, int srcy, int srcwidth, int srcheight,
1137                          GraphicsUnit srcUnit, IntPtr imageattr, Graphics.DrawImageAbort callback, IntPtr callbackData);
1138
1139                 [DllImport("gdiplus.dll")]
1140                 internal static extern Status GdipDrawImagePointsRect (IntPtr graphics, IntPtr image,
1141                          PointF [] destPoints, int count, float srcx, float srcy, float srcwidth, float srcheight,
1142                          GraphicsUnit srcUnit, IntPtr imageattr, Graphics.DrawImageAbort callback, IntPtr callbackData);
1143
1144                 [DllImport("gdiplus.dll")]
1145                 internal static extern Status GdipDrawImageRect(IntPtr graphics, IntPtr image, float x, float y, float width, float height);
1146                 [DllImport("gdiplus.dll")]
1147                 internal static extern Status GdipDrawImagePointRect(IntPtr graphics, IntPtr image, float x,
1148                                 float y, float srcx, float srcy, float srcwidth, float srcheight, GraphicsUnit srcUnit);
1149
1150                 [DllImport("gdiplus.dll")]
1151                 internal static extern Status GdipDrawImagePointRectI(IntPtr graphics, IntPtr image, int x,
1152                                 int y, int srcx, int srcy, int srcwidth,
1153                                 int srcheight, GraphicsUnit srcUnit);
1154
1155                 [DllImport("gdiplus.dll")]
1156                 internal static extern Status GdipCreateStringFormat(StringFormatFlags formatAttributes,  int language, out IntPtr native);
1157
1158                 [DllImport("gdiplus.dll")]
1159                 internal static extern Status GdipCreateHBITMAPFromBitmap (IntPtr bmp, out IntPtr HandleBmp, int clrbackground);
1160
1161                 [DllImport("gdiplus.dll", CharSet=CharSet.Auto)]
1162                 internal static extern Status GdipCreateBitmapFromFile ([MarshalAs (UnmanagedType.LPWStr)] string filename, out IntPtr bitmap);
1163
1164                 [DllImport("gdiplus.dll", CharSet=CharSet.Auto)]
1165                 internal static extern Status GdipCreateBitmapFromFileICM ([MarshalAs (UnmanagedType.LPWStr)] string filename, out IntPtr bitmap);
1166
1167                 [DllImport("gdiplus.dll")]
1168                 internal static extern Status GdipCreateHICONFromBitmap (IntPtr bmp, out IntPtr HandleIcon);
1169
1170                 [DllImport("gdiplus.dll")]
1171                 internal static extern Status GdipCreateBitmapFromHICON (IntPtr  hicon,  out IntPtr bitmap);
1172
1173                 [DllImport("gdiplus.dll")]
1174                 internal static extern Status GdipCreateBitmapFromResource (IntPtr hInstance,
1175                                 string lpBitmapName, out IntPtr bitmap);
1176
1177                 // Matrix functions
1178                 [DllImport ("gdiplus.dll")]
1179                 internal static extern Status GdipCreateMatrix (out IntPtr matrix);
1180                 [DllImport ("gdiplus.dll")]
1181                 internal static extern Status GdipCreateMatrix2 (float m11, float m12, float m21, float m22, float dx, float dy, out IntPtr matrix);
1182                 [DllImport ("gdiplus.dll")]
1183                 internal static extern Status GdipCreateMatrix3 (ref RectangleF rect, PointF [] dstplg, out IntPtr matrix);
1184                 [DllImport ("gdiplus.dll")]
1185                 internal static extern Status GdipCreateMatrix3I (ref Rectangle rect, Point [] dstplg, out IntPtr matrix);
1186                 [DllImport ("gdiplus.dll")]
1187                 internal static extern Status GdipDeleteMatrix (IntPtr matrix);
1188
1189                 [DllImport ("gdiplus.dll")]
1190                 internal static extern Status GdipCloneMatrix (IntPtr matrix, out IntPtr cloneMatrix);
1191                 [DllImport ("gdiplus.dll")]
1192                 internal static extern Status GdipSetMatrixElements (IntPtr matrix, float m11, float m12, float m21, float m22, float dx, float dy);
1193                 [DllImport ("gdiplus.dll")]
1194                 internal static extern Status GdipGetMatrixElements (IntPtr matrix, IntPtr matrixOut);
1195                 [DllImport ("gdiplus.dll")]
1196                 internal static extern Status GdipMultiplyMatrix (IntPtr matrix, IntPtr matrix2, MatrixOrder order);
1197                 [DllImport ("gdiplus.dll")]
1198                 internal static extern Status GdipTranslateMatrix (IntPtr matrix, float offsetX, float offsetY, MatrixOrder order);
1199                 [DllImport ("gdiplus.dll")]
1200                 internal static extern Status GdipScaleMatrix (IntPtr matrix, float scaleX, float scaleY, MatrixOrder order);
1201                 [DllImport ("gdiplus.dll")]
1202                 internal static extern Status GdipRotateMatrix (IntPtr matrix, float angle, MatrixOrder order);
1203
1204                 [DllImport ("gdiplus.dll")]
1205                 internal static extern Status GdipShearMatrix (IntPtr matrix, float shearX, float shearY, MatrixOrder order);
1206
1207                 [DllImport ("gdiplus.dll")]
1208                 internal static extern Status GdipInvertMatrix (IntPtr matrix);
1209                 [DllImport ("gdiplus.dll")]
1210                 internal static extern Status GdipTransformMatrixPoints (IntPtr matrix, PointF [] pts, int count);
1211                 [DllImport ("gdiplus.dll")]
1212                 internal static extern Status GdipTransformMatrixPointsI (IntPtr matrix, Point [] pts, int count);
1213                 [DllImport ("gdiplus.dll")]
1214                 internal static extern Status GdipVectorTransformMatrixPoints (IntPtr matrix, PointF [] pts, int count);
1215                 [DllImport ("gdiplus.dll")]
1216                 internal static extern Status GdipVectorTransformMatrixPointsI (IntPtr matrix, Point [] pts, int count);
1217                 [DllImport ("gdiplus.dll")]
1218                 internal static extern Status GdipIsMatrixInvertible (IntPtr matrix, out bool result);
1219
1220                 [DllImport ("gdiplus.dll")]
1221                 internal static extern Status GdipIsMatrixIdentity (IntPtr matrix, out bool result);
1222                 [DllImport ("gdiplus.dll")]
1223                 internal static extern Status GdipIsMatrixEqual (IntPtr matrix, IntPtr matrix2, out bool result);
1224
1225                 // GraphicsPath functions
1226                 [DllImport ("gdiplus.dll")]
1227                 internal static extern Status GdipCreatePath (FillMode brushMode, out IntPtr path);
1228                 [DllImport ("gdiplus.dll")]
1229                 internal static extern Status GdipCreatePath2 (PointF [] points, byte [] types, int count, FillMode brushMode, out IntPtr path);
1230                 [DllImport ("gdiplus.dll")]
1231                 internal static extern Status GdipCreatePath2I (Point [] points, byte [] types, int count, FillMode brushMode, out IntPtr path);
1232                 [DllImport ("gdiplus.dll")]
1233                 internal static extern Status GdipClonePath (IntPtr path, out IntPtr clonePath);
1234                 [DllImport ("gdiplus.dll")]
1235                 internal static extern Status GdipDeletePath (IntPtr path);
1236                 [DllImport ("gdiplus.dll")]
1237                 internal static extern Status GdipResetPath (IntPtr path);
1238                 [DllImport ("gdiplus.dll")]
1239                 internal static extern Status GdipGetPointCount (IntPtr path, out int count);
1240                 [DllImport ("gdiplus.dll")]
1241                 internal static extern Status GdipGetPathTypes (IntPtr path, [Out] byte [] types, int count);
1242                 [DllImport ("gdiplus.dll")]
1243                 internal static extern Status GdipGetPathPoints (IntPtr path, [Out] PointF [] points, int count);
1244                 [DllImport ("gdiplus.dll")]
1245                 internal static extern Status GdipGetPathPointsI (IntPtr path, [Out] Point [] points, int count);
1246                 [DllImport ("gdiplus.dll")]
1247                 internal static extern Status GdipGetPathFillMode (IntPtr path, out FillMode fillMode);
1248                 [DllImport ("gdiplus.dll")]
1249                 internal static extern Status GdipSetPathFillMode (IntPtr path, FillMode fillMode);
1250                 [DllImport ("gdiplus.dll")]
1251                 internal static extern Status GdipStartPathFigure (IntPtr path);
1252                 [DllImport ("gdiplus.dll")]
1253                 internal static extern Status GdipClosePathFigure (IntPtr path);
1254                 [DllImport ("gdiplus.dll")]
1255                 internal static extern Status GdipClosePathFigures (IntPtr path);
1256                 [DllImport ("gdiplus.dll")]
1257                 internal static extern Status GdipSetPathMarker (IntPtr path);
1258                 [DllImport ("gdiplus.dll")]
1259                 internal static extern Status GdipClearPathMarkers (IntPtr path);
1260                 [DllImport ("gdiplus.dll")]
1261                 internal static extern Status GdipReversePath (IntPtr path);
1262                 [DllImport ("gdiplus.dll")]
1263                 internal static extern Status GdipGetPathLastPoint (IntPtr path, out PointF lastPoint);
1264                 [DllImport ("gdiplus.dll")]
1265                 internal static extern Status GdipAddPathLine (IntPtr path, float x1, float y1, float x2, float y2);
1266                 [DllImport ("gdiplus.dll")]
1267                 internal static extern Status GdipAddPathLine2 (IntPtr path, PointF[] points, int count);
1268                 [DllImport ("gdiplus.dll")]
1269                 internal static extern Status GdipAddPathLine2I (IntPtr path, Point[] points, int count);
1270                 [DllImport ("gdiplus.dll")]
1271                 internal static extern Status GdipAddPathArc (IntPtr path, float x, float y, float width, float height, float startAngle, float sweepAngle);
1272                 [DllImport ("gdiplus.dll")]
1273                 internal static extern Status GdipAddPathBezier (IntPtr path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4);
1274                 [DllImport ("gdiplus.dll")]
1275                 internal static extern Status GdipAddPathBeziers (IntPtr path, PointF [] points, int count);
1276                 [DllImport ("gdiplus.dll")]
1277                 internal static extern Status GdipAddPathCurve (IntPtr path, PointF [] points, int count);
1278                 [DllImport ("gdiplus.dll")]
1279                 internal static extern Status GdipAddPathCurveI (IntPtr path, Point [] points, int count);
1280                 [DllImport ("gdiplus.dll")]
1281                 internal static extern Status GdipAddPathCurve2 (IntPtr path, PointF [] points, int count, float tension);
1282                 [DllImport ("gdiplus.dll")]
1283                 internal static extern Status GdipAddPathCurve2I (IntPtr path, Point [] points, int count, float tension);
1284                 [DllImport ("gdiplus.dll")]
1285                 internal static extern Status GdipAddPathCurve3 (IntPtr path, PointF [] points, int count, int offset, int numberOfSegments, float tension);
1286                 [DllImport ("gdiplus.dll")]
1287                 internal static extern Status GdipAddPathCurve3I (IntPtr path, Point [] points, int count, int offset, int numberOfSegments, float tension);
1288                 [DllImport ("gdiplus.dll")]
1289                 internal static extern Status GdipAddPathClosedCurve (IntPtr path, PointF [] points, int count);
1290                 [DllImport ("gdiplus.dll")]
1291                 internal static extern Status GdipAddPathClosedCurveI (IntPtr path, Point [] points, int count);
1292                 [DllImport ("gdiplus.dll")]
1293                 internal static extern Status GdipAddPathClosedCurve2 (IntPtr path, PointF [] points, int count, float tension);
1294                 [DllImport ("gdiplus.dll")]
1295                 internal static extern Status GdipAddPathClosedCurve2I (IntPtr path, Point [] points, int count, float tension);
1296                 [DllImport ("gdiplus.dll")]
1297                 internal static extern Status GdipAddPathRectangle (IntPtr path, float x, float y, float width, float height);
1298                 [DllImport ("gdiplus.dll")]
1299                 internal static extern Status GdipAddPathRectangles (IntPtr path, RectangleF [] rects, int count);
1300                 [DllImport ("gdiplus.dll")]
1301                 internal static extern Status GdipAddPathEllipse (IntPtr path, float x, float y, float width, float height);
1302                 [DllImport ("gdiplus.dll")]
1303                 internal static extern Status GdipAddPathEllipseI (IntPtr path, int x, int y, int width, int height);
1304                 [DllImport ("gdiplus.dll")]
1305                 internal static extern Status GdipAddPathPie (IntPtr path, float x, float y, float width, float height, float startAngle, float sweepAngle);
1306                 [DllImport ("gdiplus.dll")]
1307                 internal static extern Status GdipAddPathPieI (IntPtr path, int x, int y, int width, int height, float startAngle, float sweepAngle);
1308                 [DllImport ("gdiplus.dll")]
1309                 internal static extern Status GdipAddPathPolygon (IntPtr path, PointF [] points, int count);
1310                 [DllImport ("gdiplus.dll")]
1311                 internal static extern Status GdipAddPathPath (IntPtr path, IntPtr addingPath, bool connect);
1312                 [DllImport ("gdiplus.dll")]
1313                 internal static extern Status GdipAddPathLineI (IntPtr path, int x1, int y1, int x2, int y2);
1314                 [DllImport ("gdiplus.dll")]
1315                 internal static extern Status GdipAddPathArcI (IntPtr path, int x, int y, int width, int height, float startAngle, float sweepAngle);
1316
1317                 [DllImport ("gdiplus.dll")]
1318                 internal static extern Status GdipAddPathBezierI (IntPtr path, int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4);
1319                 [DllImport ("gdiplus.dll")]
1320                 internal static extern Status GdipAddPathBeziersI (IntPtr path, Point [] points, int count);
1321
1322                 [DllImport ("gdiplus.dll")]
1323                 internal static extern Status GdipAddPathPolygonI (IntPtr path, Point [] points, int count);
1324                 [DllImport ("gdiplus.dll")]
1325                 internal static extern Status GdipAddPathRectangleI (IntPtr path, int x, int y, int width, int height);
1326                 [DllImport ("gdiplus.dll")]
1327                 internal static extern Status GdipAddPathRectanglesI (IntPtr path, Rectangle [] rects, int count);
1328                 [DllImport ("gdiplus.dll")]
1329                 internal static extern Status GdipFlattenPath (IntPtr path, IntPtr matrix, float floatness);
1330                 [DllImport ("gdiplus.dll")]
1331                 internal static extern Status GdipTransformPath (IntPtr path, IntPtr matrix);
1332                 [DllImport ("gdiplus.dll")]
1333                 internal static extern Status GdipWarpPath (IntPtr path, IntPtr matrix,
1334                                                             PointF [] points, int count,
1335                                                             float srcx, float srcy, float srcwidth, float srcheight,
1336                                                             WarpMode mode, float flatness);
1337                 [DllImport ("gdiplus.dll")]
1338                 internal static extern Status GdipWidenPath (IntPtr path, IntPtr pen, IntPtr matrix, float flatness);
1339                 [DllImport ("gdiplus.dll")]
1340                 internal static extern Status GdipGetPathWorldBounds (IntPtr path, out RectangleF bounds, IntPtr matrix, IntPtr pen);
1341                 [DllImport ("gdiplus.dll")]
1342                 internal static extern Status GdipGetPathWorldBoundsI (IntPtr path, out Rectangle bounds, IntPtr matrix, IntPtr pen);
1343                 [DllImport ("gdiplus.dll")]
1344                 internal static extern Status GdipIsVisiblePathPoint (IntPtr path, float x, float y, IntPtr graphics, out bool result);
1345                 [DllImport ("gdiplus.dll")]
1346                 internal static extern Status GdipIsVisiblePathPointI (IntPtr path, int x, int y, IntPtr graphics, out bool result);
1347                 [DllImport ("gdiplus.dll")]
1348                 internal static extern Status GdipIsOutlineVisiblePathPoint (IntPtr path, float x, float y, IntPtr pen, IntPtr graphics, out bool result);
1349                 [DllImport ("gdiplus.dll")]
1350                 internal static extern Status GdipIsOutlineVisiblePathPointI (IntPtr path, int x, int y, IntPtr pen, IntPtr graphics, out bool result);
1351
1352                 // GraphicsPathIterator
1353                 [DllImport("gdiplus.dll")]
1354                 internal static extern Status GdipCreatePathIter (out IntPtr iterator, IntPtr path);
1355                 [DllImport("gdiplus.dll")]
1356                 internal static extern Status GdipPathIterGetCount (IntPtr iterator, out int count);
1357                 [DllImport("gdiplus.dll")]
1358                 internal static extern Status GdipPathIterGetSubpathCount (IntPtr iterator, out int count);
1359                 [DllImport("gdiplus.dll")]
1360                 internal static extern Status GdipDeletePathIter (IntPtr iterator);
1361                 [DllImport("gdiplus.dll")]
1362                 internal static extern Status GdipPathIterCopyData (IntPtr iterator, out int resultCount, PointF [] points, byte [] types, int startIndex, int endIndex);
1363                 [DllImport("gdiplus.dll")]
1364                 internal static extern Status GdipPathIterEnumerate (IntPtr iterator, out int resultCount, PointF [] points, byte [] types, int count);
1365                 [DllImport("gdiplus.dll")]
1366                 internal static extern Status GdipPathIterHasCurve (IntPtr iterator, out bool curve);
1367                 [DllImport("gdiplus.dll")]
1368                 internal static extern Status GdipPathIterNextMarkerPath (IntPtr iterator, out int resultCount, IntPtr path);
1369                 [DllImport("gdiplus.dll")]
1370                 internal static extern Status GdipPathIterNextMarker (IntPtr iterator, out int resultCount, out int startIndex, out int endIndex);
1371                 [DllImport("gdiplus.dll")]
1372                 internal static extern Status GdipPathIterNextPathType (IntPtr iterator, out int resultCount, out byte pathType, out int startIndex, out int endIndex);
1373                 [DllImport("gdiplus.dll")]
1374                 internal static extern Status GdipPathIterNextSubpathPath (IntPtr iterator, out int resultCount, IntPtr path, out bool isClosed);
1375                 [DllImport("gdiplus.dll")]
1376                 internal static extern Status GdipPathIterNextSubpath (IntPtr iterator, out int resultCount, out int startIndex, out int endIndex, out bool isClosed);
1377                 [DllImport("gdiplus.dll")]
1378                 internal static extern Status GdipPathIterRewind (IntPtr iterator);
1379
1380                 // ImageAttributes
1381                 [DllImport ("gdiplus.dll")]
1382                 internal static extern Status GdipCreateImageAttributes (out IntPtr imageattr);
1383
1384                 [DllImport ("gdiplus.dll")]
1385                 internal static extern Status GdipSetImageAttributesColorKeys (IntPtr imageattr,
1386                                 ColorAdjustType type, bool enableFlag, int colorLow, int colorHigh);
1387
1388                 [DllImport ("gdiplus.dll")]
1389                 internal static extern Status GdipDisposeImageAttributes (IntPtr imageattr);
1390
1391                 [DllImport ("gdiplus.dll")]
1392                 internal static extern Status GdipSetImageAttributesColorMatrix (IntPtr imageattr,
1393                                 ColorAdjustType type, bool enableFlag, IntPtr colorMatrix,
1394                                 IntPtr grayMatrix,  ColorMatrixFlag flags);
1395
1396                 [DllImport ("gdiplus.dll")]
1397                 internal static extern Status GdipSetImageAttributesGamma (IntPtr imageattr,
1398                         ColorAdjustType type, bool enableFlag,
1399                                                                                                                                                         float gamma);
1400
1401                 [DllImport ("gdiplus.dll")]
1402                 internal static extern Status GdipSetImageAttributesNoOp (IntPtr imageattr,
1403                         ColorAdjustType type, bool enableFlag);
1404
1405                 [DllImport ("gdiplus.dll")]
1406                 internal static extern Status GdipSetImageAttributesOutputChannel (IntPtr imageattr,
1407                         ColorAdjustType type, bool enableFlag,  ColorChannelFlag channelFlags);
1408
1409                 [DllImport ("gdiplus.dll", CharSet=CharSet.Auto)]
1410                 internal static extern Status GdipSetImageAttributesOutputChannelColorProfile (IntPtr imageattr,
1411                         ColorAdjustType type, bool enableFlag, [MarshalAs (UnmanagedType.LPWStr)] string profileName);
1412
1413                 [DllImport ("gdiplus.dll")]
1414                 internal static extern Status GdipSetImageAttributesRemapTable (IntPtr imageattr,
1415                         ColorAdjustType type, bool enableFlag,  uint mapSize, IntPtr colorMap);
1416
1417                 [DllImport ("gdiplus.dll")]
1418                 internal static extern Status GdipSetImageAttributesThreshold (IntPtr imageattr,
1419                         ColorAdjustType type, bool enableFlag, float thresHold);
1420
1421                 [DllImport ("gdiplus.dll")]
1422                 internal static extern Status GdipCloneImageAttributes(IntPtr imageattr, out IntPtr cloneImageattr);
1423
1424                 [DllImport ("gdiplus.dll")]
1425                 internal static extern Status GdipGetImageAttributesAdjustedPalette (IntPtr imageattr, IntPtr colorPalette,
1426                         ColorAdjustType colorAdjustType);
1427
1428                 [DllImport ("gdiplus.dll")]
1429                 internal static extern Status GdipSetImageAttributesWrapMode(IntPtr imageattr,  WrapMode wrap,
1430                         int argb, bool clamp);
1431
1432
1433                 // Font
1434                 [DllImport("gdiplus.dll")]
1435                 internal static extern Status GdipCreateFont (IntPtr fontFamily, float emSize, FontStyle style, GraphicsUnit  unit,  out IntPtr font);
1436                 [DllImport("gdiplus.dll")]
1437                 internal static extern Status GdipDeleteFont (IntPtr font);
1438                 [DllImport("gdiplus.dll", CharSet=CharSet.Auto)]
1439                 internal static extern Status GdipGetLogFont(IntPtr font, IntPtr graphics, [MarshalAs(UnmanagedType.AsAny), Out] object logfontA);
1440
1441                 [DllImport("gdiplus.dll")]
1442                 internal static extern Status GdipCreateFontFromDC(IntPtr hdc, out IntPtr font);
1443                 [DllImport("gdiplus.dll", SetLastError=true, CharSet=CharSet.Auto)]
1444                 internal static extern Status GdipCreateFontFromLogfont(IntPtr hdc, ref LOGFONT lf, out IntPtr ptr);
1445
1446                 // These are our private functions, they exists in our own libgdiplus library, this way we
1447                 // avoid relying on wine in System.Drawing
1448                 [DllImport("gdiplus.dll", CharSet=CharSet.Ansi)]
1449                 internal static extern Status GdipCreateFontFromHfont(IntPtr hdc, out IntPtr font, ref LOGFONT lf);
1450
1451                 // This is win32/gdi, not gdiplus, but it's easier to keep in here, also see above comment
1452                 [DllImport("gdi32.dll", CallingConvention=CallingConvention.StdCall, CharSet = CharSet.Auto)]
1453                 internal static extern IntPtr CreateFontIndirect (ref LOGFONT logfont);
1454                 [DllImport("user32.dll", EntryPoint="GetDC", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
1455                 internal static extern IntPtr GetDC(IntPtr hwnd);
1456                 [DllImport("user32.dll", EntryPoint="ReleaseDC", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
1457                 internal static extern int ReleaseDC (IntPtr hWnd, IntPtr hDC);
1458                 [DllImport("gdi32.dll", EntryPoint="SelectObject", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
1459                 internal static extern IntPtr SelectObject(IntPtr hdc, IntPtr obj);
1460                 [DllImport("user32.dll", SetLastError=true)]
1461                 internal static extern bool GetIconInfo (IntPtr hIcon, out IconInfo iconinfo);
1462                 [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall, SetLastError=true)]
1463                 internal static extern IntPtr CreateIconIndirect ([In] ref IconInfo piconinfo);
1464                 [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall, SetLastError=true)]
1465                 internal static extern bool DestroyIcon (IntPtr hIcon);
1466                 [DllImport("gdi32.dll")]
1467                 internal static extern bool DeleteObject (IntPtr hObject);
1468                 [DllImport("user32.dll")]
1469                 internal static extern IntPtr GetDesktopWindow ();
1470
1471                 [DllImport("gdi32.dll", SetLastError=true)]
1472                 public static extern int BitBlt(IntPtr hdcDest, int nXDest, int nYDest,
1473                         int nWidth, int nHeight, IntPtr hdcSrc, int nXSrc, int nYSrc, int dwRop);
1474
1475                 [DllImport ("user32.dll", EntryPoint = "GetSysColor", CallingConvention = CallingConvention.StdCall)]
1476                 public static extern uint Win32GetSysColor (GetSysColorIndex index);
1477
1478
1479                 // Some special X11 stuff
1480                 [DllImport("libX11", EntryPoint="XOpenDisplay")]
1481                 internal extern static IntPtr XOpenDisplay(IntPtr display);
1482
1483                 [DllImport("libX11", EntryPoint="XCloseDisplay")]
1484                 internal extern static int XCloseDisplay(IntPtr display);
1485
1486                 [DllImport ("libX11", EntryPoint="XRootWindow")]
1487                 internal extern static IntPtr XRootWindow(IntPtr display, int screen);
1488
1489                 [DllImport ("libX11", EntryPoint="XDefaultScreen")]
1490                 internal extern static int XDefaultScreen(IntPtr display);
1491
1492                 [DllImport ("libX11", EntryPoint="XDefaultDepth")]
1493                 internal extern static uint XDefaultDepth(IntPtr display, int screen);
1494
1495                 [DllImport ("libX11", EntryPoint="XGetImage")]
1496                 internal extern static IntPtr XGetImage(IntPtr display, IntPtr drawable, int src_x, int src_y, int width, int height, int pane, int format);
1497
1498                 [DllImport ("libX11", EntryPoint="XGetPixel")]
1499                 internal extern static int XGetPixel(IntPtr image, int x, int y);
1500
1501                 [DllImport ("libX11", EntryPoint="XDestroyImage")]
1502                 internal extern static int XDestroyImage(IntPtr image);
1503
1504                 [DllImport ("libX11", EntryPoint="XDefaultVisual")]
1505                 internal extern static IntPtr XDefaultVisual(IntPtr display, int screen);
1506
1507                 [DllImport ("libX11", EntryPoint="XGetVisualInfo")]
1508                 internal extern static IntPtr XGetVisualInfo (IntPtr display, int vinfo_mask, ref XVisualInfo vinfo_template, ref int nitems);
1509
1510                 [DllImport ("libX11", EntryPoint="XVisualIDFromVisual")]
1511                 internal extern static IntPtr XVisualIDFromVisual (IntPtr visual);
1512
1513                 [DllImport ("libX11", EntryPoint="XFree")]
1514                 internal extern static void XFree (IntPtr data);
1515
1516                 // FontCollection
1517                 [DllImport ("gdiplus.dll")]
1518                 internal static extern Status GdipGetFontCollectionFamilyCount (IntPtr collection, out int found);
1519
1520                 [DllImport ("gdiplus.dll")]
1521                 internal static extern Status GdipGetFontCollectionFamilyList (IntPtr collection, int getCount, IntPtr[] dest, out int retCount);
1522                 //internal static extern Status GdipGetFontCollectionFamilyList( IntPtr collection, int getCount, [Out] FontFamily [] familyList, out int retCount );
1523
1524                 [DllImport ("gdiplus.dll")]
1525                 internal static extern Status GdipNewInstalledFontCollection (out IntPtr collection);
1526
1527                 [DllImport ("gdiplus.dll")]
1528                 internal static extern Status GdipNewPrivateFontCollection (out IntPtr collection);
1529
1530                 [DllImport ("gdiplus.dll")]
1531                 internal static extern Status GdipDeletePrivateFontCollection (ref IntPtr collection);
1532
1533                 [DllImport ("gdiplus.dll", CharSet=CharSet.Auto)]
1534                 internal static extern Status GdipPrivateAddFontFile (IntPtr collection,
1535                                 [MarshalAs (UnmanagedType.LPWStr)] string fileName );
1536
1537                 [DllImport ("gdiplus.dll")]
1538                 internal static extern Status GdipPrivateAddMemoryFont (IntPtr collection, IntPtr mem, int length);
1539
1540                 //FontFamily
1541                 [DllImport ("gdiplus.dll", CharSet=CharSet.Auto)]
1542                 internal static extern Status GdipCreateFontFamilyFromName (
1543                         [MarshalAs(UnmanagedType.LPWStr)] string fName, IntPtr collection, out IntPtr fontFamily);
1544
1545                 [DllImport ("gdiplus.dll", CharSet=CharSet.Unicode)]
1546                 internal static extern Status GdipGetFamilyName(IntPtr family, StringBuilder name, int language);
1547
1548                 [DllImport ("gdiplus.dll")]
1549                 internal static extern Status GdipGetGenericFontFamilySansSerif (out IntPtr fontFamily);
1550
1551                 [DllImport ("gdiplus.dll")]
1552                 internal static extern Status GdipGetGenericFontFamilySerif (out IntPtr fontFamily);
1553
1554                 [DllImport ("gdiplus.dll")]
1555                 internal static extern Status GdipGetGenericFontFamilyMonospace (out IntPtr fontFamily);
1556
1557                 [DllImport ("gdiplus.dll")]
1558                 internal static extern Status GdipGetCellAscent (IntPtr fontFamily, int style, out short ascent);
1559
1560                 [DllImport ("gdiplus.dll")]
1561                 internal static extern Status GdipGetCellDescent (IntPtr fontFamily, int style, out short descent);
1562
1563                 [DllImport ("gdiplus.dll")]
1564                 internal static extern Status GdipGetLineSpacing (IntPtr fontFamily, int style, out short spacing);
1565
1566                 [DllImport ("gdiplus.dll")]
1567                 internal static extern Status GdipGetEmHeight (IntPtr fontFamily, int style, out short emHeight);
1568
1569                 [DllImport ("gdiplus.dll")]
1570                 internal static extern Status GdipIsStyleAvailable (IntPtr fontFamily, int style, out bool styleAvailable);
1571
1572                 [DllImport ("gdiplus.dll")]
1573                 internal static extern Status GdipDeleteFontFamily (IntPtr fontFamily);
1574
1575                 [DllImport ("gdiplus.dll")]
1576                 internal static extern Status GdipGetFontSize (IntPtr font, out float size);
1577
1578                 [DllImport ("gdiplus.dll")]
1579                 internal static extern Status GdipGetFontHeight (IntPtr font, IntPtr graphics, out float height);
1580
1581                 [DllImport ("gdiplus.dll")]
1582                 internal static extern Status GdipGetFontHeightGivenDPI (IntPtr font, float dpi, out float height);
1583
1584                 [DllImport ("gdiplus.dll")]
1585                 internal static extern Status GdipCloneFontFamily (IntPtr fontFamily, out IntPtr clone);
1586
1587
1588                 // String Format
1589                 [DllImport ("gdiplus.dll")]
1590                 internal static extern Status GdipCreateStringFormat(int formatAttributes, int language, out IntPtr  format);
1591                 [DllImport ("gdiplus.dll")]
1592                 internal static extern Status GdipStringFormatGetGenericDefault(out IntPtr format);
1593                 [DllImport ("gdiplus.dll")]
1594                 internal static extern Status GdipStringFormatGetGenericTypographic(out IntPtr format);
1595                 [DllImport ("gdiplus.dll")]
1596                 internal static extern Status GdipDeleteStringFormat(IntPtr format);
1597                 [DllImport ("gdiplus.dll")]
1598                 internal static extern Status GdipCloneStringFormat(IntPtr srcformat, out IntPtr format);
1599                 [DllImport ("gdiplus.dll")]
1600                 internal static extern Status GdipSetStringFormatFlags(IntPtr format, StringFormatFlags flags);
1601                 [DllImport ("gdiplus.dll")]
1602                 internal static extern Status GdipGetStringFormatFlags(IntPtr format, out StringFormatFlags flags);
1603                 [DllImport ("gdiplus.dll")]
1604                 internal static extern Status GdipSetStringFormatAlign(IntPtr format, StringAlignment align);
1605                 [DllImport ("gdiplus.dll")]
1606                 internal static extern Status GdipGetStringFormatAlign(IntPtr format, out StringAlignment align);
1607                 [DllImport ("gdiplus.dll")]
1608                 internal static extern Status GdipSetStringFormatLineAlign(IntPtr format, StringAlignment align);
1609                 [DllImport ("gdiplus.dll")]
1610                 internal static extern Status GdipGetStringFormatLineAlign(IntPtr format, out StringAlignment align);
1611                 [DllImport ("gdiplus.dll")]
1612                 internal static extern Status GdipSetStringFormatTrimming(IntPtr format, StringTrimming trimming);
1613                 [DllImport ("gdiplus.dll")]
1614                 internal static extern Status GdipGetStringFormatTrimming(IntPtr format, out StringTrimming trimming);
1615                 [DllImport ("gdiplus.dll")]
1616                 internal static extern Status GdipSetStringFormatHotkeyPrefix(IntPtr format, HotkeyPrefix hotkeyPrefix);
1617                 [DllImport ("gdiplus.dll")]
1618                 internal static extern Status GdipGetStringFormatHotkeyPrefix(IntPtr format, out HotkeyPrefix hotkeyPrefix);
1619                 [DllImport ("gdiplus.dll")]
1620                 internal static extern Status GdipSetStringFormatTabStops(IntPtr format, float firstTabOffset, int count, float [] tabStops);
1621                 [DllImport ("gdiplus.dll")]
1622                 internal static extern Status GdipGetStringFormatDigitSubstitution(IntPtr format, int language, out StringDigitSubstitute substitute);
1623                 [DllImport ("gdiplus.dll")]
1624                 internal static extern Status GdipSetStringFormatDigitSubstitution(IntPtr format, int language, StringDigitSubstitute substitute);
1625                 [DllImport ("gdiplus.dll")]
1626                 internal static extern Status GdipGetStringFormatTabStopCount(IntPtr format, out int count);
1627                 [DllImport ("gdiplus.dll")]
1628                 internal static extern Status GdipGetStringFormatTabStops(IntPtr format, int count, out float firstTabOffset, [In, Out] float [] tabStops);
1629
1630                 // metafile
1631                 [DllImport ("gdiplus.dll", CharSet = CharSet.Auto)]
1632                 internal static extern Status GdipCreateMetafileFromFile ([MarshalAs (UnmanagedType.LPWStr)] string filename, out IntPtr metafile);
1633                 [DllImport ("gdiplus.dll")]
1634                 internal static extern Status GdipCreateMetafileFromEmf (IntPtr hEmf, bool deleteEmf, out IntPtr metafile);
1635                 [DllImport ("gdiplus.dll")]
1636                 internal static extern Status GdipCreateMetafileFromWmf (IntPtr hWmf, bool deleteWmf, WmfPlaceableFileHeader wmfPlaceableFileHeader, out IntPtr metafile);
1637                 [DllImport ("gdiplus.dll", CharSet = CharSet.Auto)]
1638                 internal static extern Status GdipGetMetafileHeaderFromFile ([MarshalAs (UnmanagedType.LPWStr)] string filename, IntPtr header);
1639                 [DllImport ("gdiplus.dll")]
1640                 internal static extern Status GdipGetMetafileHeaderFromMetafile (IntPtr metafile, IntPtr header);
1641                 [DllImport ("gdiplus.dll")]
1642                 internal static extern Status GdipGetMetafileHeaderFromEmf (IntPtr hEmf, IntPtr header);
1643                 [DllImport ("gdiplus.dll")]
1644                 internal static extern Status GdipGetMetafileHeaderFromWmf (IntPtr hWmf, IntPtr wmfPlaceableFileHeader, IntPtr header);
1645                 [DllImport ("gdiplus.dll")]
1646                 internal static extern Status GdipGetHemfFromMetafile (IntPtr metafile, out IntPtr hEmf);
1647                 [DllImport ("gdiplus.dll")]
1648                 internal static extern Status GdipGetMetafileDownLevelRasterizationLimit (IntPtr metafile, ref uint metafileRasterizationLimitDpi);
1649                 [DllImport ("gdiplus.dll")]
1650                 internal static extern Status GdipSetMetafileDownLevelRasterizationLimit (IntPtr metafile, uint metafileRasterizationLimitDpi);
1651                 [DllImport ("gdiplus.dll")]
1652                 internal static extern Status GdipPlayMetafileRecord (IntPtr metafile, EmfPlusRecordType recordType, int flags, int dataSize, byte[] data);
1653
1654                 [DllImport ("gdiplus.dll")]
1655                 internal static extern Status GdipRecordMetafile (IntPtr hdc, EmfType type, ref RectangleF frameRect,
1656                         MetafileFrameUnit frameUnit, [MarshalAs (UnmanagedType.LPWStr)] string description, out IntPtr metafile);
1657                 [DllImport ("gdiplus.dll")]
1658                 internal static extern Status GdipRecordMetafileI (IntPtr hdc, EmfType type, ref Rectangle frameRect,
1659                         MetafileFrameUnit frameUnit, [MarshalAs (UnmanagedType.LPWStr)] string description, out IntPtr metafile);
1660                 [DllImport ("gdiplus.dll")]
1661                 internal static extern Status GdipRecordMetafileFileName ([MarshalAs (UnmanagedType.LPWStr)] string filename, IntPtr hdc, EmfType type,
1662                         ref RectangleF frameRect, MetafileFrameUnit frameUnit, [MarshalAs (UnmanagedType.LPWStr)] string description, out IntPtr metafile);
1663                 [DllImport ("gdiplus.dll")]
1664                 internal static extern Status GdipRecordMetafileFileNameI ([MarshalAs (UnmanagedType.LPWStr)] string filename, IntPtr hdc, EmfType type,
1665                         ref Rectangle frameRect, MetafileFrameUnit frameUnit, [MarshalAs (UnmanagedType.LPWStr)] string description, out IntPtr metafile);
1666 #if !TEST
1667                 [DllImport("gdiplus.dll", ExactSpelling=true, CharSet=CharSet.Unicode)]
1668                 internal static extern Status GdipCreateMetafileFromStream([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef=typeof(ComIStreamMarshaler))] IStream stream, out IntPtr metafile);
1669                 [DllImport("gdiplus.dll", ExactSpelling=true, CharSet=CharSet.Unicode)]
1670                 internal static extern Status GdipGetMetafileHeaderFromStream([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef=typeof(ComIStreamMarshaler))] IStream stream, IntPtr header);
1671
1672                 [DllImport ("gdiplus.dll")]
1673                 internal static extern Status GdipRecordMetafileStream ([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef=typeof(ComIStreamMarshaler))] IStream stream, IntPtr hdc,
1674                         EmfType type, ref RectangleF frameRect, MetafileFrameUnit frameUnit, [MarshalAs (UnmanagedType.LPWStr)] string description, out IntPtr metafile);
1675                 [DllImport ("gdiplus.dll")]
1676                 internal static extern Status GdipRecordMetafileStreamI ([MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef=typeof(ComIStreamMarshaler))] IStream stream, IntPtr hdc,
1677                         EmfType type, ref Rectangle frameRect, MetafileFrameUnit frameUnit, [MarshalAs (UnmanagedType.LPWStr)] string description, out IntPtr metafile);
1678 #endif
1679                 //ImageCodecInfo functions
1680                 [DllImport("gdiplus.dll")]
1681                 static internal extern Status GdipGetImageDecodersSize (out int decoderNums, out int arraySize);
1682                 [DllImport("gdiplus.dll")]
1683                 static internal extern Status GdipGetImageDecoders (int decoderNums, int arraySize, IntPtr decoders);
1684                 [DllImport("gdiplus.dll")]
1685                 static internal extern Status GdipGetImageEncodersSize (out int encoderNums, out int arraySize);
1686                 [DllImport("gdiplus.dll")]
1687                 static internal extern Status GdipGetImageEncoders (int encoderNums, int arraySize, IntPtr encoders);
1688
1689                 //
1690                 // These are stuff that is unix-only
1691                 //
1692                 public delegate int StreamGetHeaderDelegate(IntPtr buf, int bufsz);
1693                 public delegate int StreamGetBytesDelegate (IntPtr buf, int bufsz, bool peek);
1694                 public delegate long StreamSeekDelegate (int offset, int whence);
1695                 public delegate int StreamPutBytesDelegate (IntPtr buf, int bufsz);
1696                 public delegate void StreamCloseDelegate ();
1697                 public delegate long StreamSizeDelegate ();
1698
1699                 internal sealed class GdiPlusStreamHelper {
1700                         public Stream stream;
1701
1702                         private StreamGetHeaderDelegate sghd = null;
1703                         private StreamGetBytesDelegate sgbd = null;
1704                         private StreamSeekDelegate skd = null;
1705                         private StreamPutBytesDelegate spbd = null;
1706                         private StreamCloseDelegate scd = null;
1707                         private StreamSizeDelegate ssd = null;
1708                         private byte[]  start_buf;
1709                         private int     start_buf_pos;
1710                         private int     start_buf_len;
1711                         private byte[]  managedBuf;
1712                         private const int default_bufsize = 4096;
1713
1714                         public GdiPlusStreamHelper (Stream s, bool seekToOrigin)
1715                         {
1716                                 managedBuf = new byte [default_bufsize];
1717
1718                                 stream = s;
1719                                 if (stream != null && stream.CanSeek && seekToOrigin) {
1720                                         stream.Seek (0, SeekOrigin.Begin);
1721                                 }
1722                         }
1723
1724                         public int StreamGetHeaderImpl (IntPtr buf, int bufsz)  {
1725                                 int     bytesRead;
1726
1727                                 start_buf = new byte[bufsz];
1728
1729                                 try {
1730                                         bytesRead = stream.Read (start_buf, 0, bufsz);
1731                                 } catch (IOException) {
1732                                         return -1;
1733                                 }
1734
1735                                 if (bytesRead > 0 && buf != IntPtr.Zero) {
1736                                         Marshal.Copy (start_buf, 0, (IntPtr) (buf.ToInt64()), bytesRead);
1737                                 }
1738
1739                                 start_buf_pos = 0;
1740                                 start_buf_len = bytesRead;
1741
1742                                 return bytesRead;
1743                         }
1744
1745                         public StreamGetHeaderDelegate GetHeaderDelegate {
1746                                 get {
1747                                         if (stream != null && stream.CanRead) {
1748                                                 if (sghd == null) {
1749                                                         sghd = new StreamGetHeaderDelegate (StreamGetHeaderImpl);
1750                                                 }
1751                                                 return sghd;
1752                                         }
1753                                         return null;
1754                                 }
1755                         }
1756
1757                         public int StreamGetBytesImpl (IntPtr buf, int bufsz, bool peek)
1758                         {
1759                                 if (buf == IntPtr.Zero && peek) {
1760                                         return -1;
1761                                 }
1762
1763                                 if (bufsz > managedBuf.Length)
1764                                         managedBuf = new byte[bufsz];
1765                                 int bytesRead = 0;
1766                                 long streamPosition = 0;
1767
1768                                 if (bufsz > 0) {
1769                                         if (stream.CanSeek) {
1770                                                 streamPosition = stream.Position;
1771                                         }
1772                                         if (start_buf_len > 0) {
1773                                                 if (start_buf_len > bufsz) {
1774                                                         Array.Copy(start_buf, start_buf_pos, managedBuf, 0, bufsz);
1775                                                         start_buf_pos += bufsz;
1776                                                         start_buf_len -= bufsz;
1777                                                         bytesRead = bufsz;
1778                                                         bufsz = 0;
1779                                                 } else {
1780                                                         // this is easy
1781                                                         Array.Copy(start_buf, start_buf_pos, managedBuf, 0, start_buf_len);
1782                                                         bufsz -= start_buf_len;
1783                                                         bytesRead = start_buf_len;
1784                                                         start_buf_len = 0;
1785                                                 }
1786                                         }
1787
1788                                         if (bufsz > 0) {
1789                                                 try {
1790                                                         bytesRead += stream.Read (managedBuf, bytesRead, bufsz);
1791                                                 } catch (IOException) {
1792                                                         return -1;
1793                                                 }
1794                                         }
1795
1796                                         if (bytesRead > 0 && buf != IntPtr.Zero) {
1797                                                 Marshal.Copy (managedBuf, 0, (IntPtr) (buf.ToInt64()), bytesRead);
1798                                         }
1799
1800                                         if (!stream.CanSeek && (bufsz == 10) && peek) {
1801                                                 // Special 'hack' to support peeking of the type for gdi+ on non-seekable streams
1802                                         }
1803
1804                                         if (peek) {
1805                                                 if (stream.CanSeek) {
1806                                                         // If we are peeking bytes, then go back to original position before peeking
1807                                                         stream.Seek (streamPosition, SeekOrigin.Begin);
1808                                                 } else {
1809                                                         throw new NotSupportedException();
1810                                                 }
1811                                         }
1812                                 }
1813
1814                                 return bytesRead;
1815                         }
1816
1817                         public StreamGetBytesDelegate GetBytesDelegate {
1818                                 get {
1819                                         if (stream != null && stream.CanRead) {
1820                                                 if (sgbd == null) {
1821                                                         sgbd = new StreamGetBytesDelegate (StreamGetBytesImpl);
1822                                                 }
1823                                                 return sgbd;
1824                                         }
1825                                         return null;
1826                                 }
1827                         }
1828
1829                         public long StreamSeekImpl (int offset, int whence)
1830                         {
1831                                 // Make sure we have a valid 'whence'.
1832                                 if ((whence < 0) || (whence > 2))
1833                                         return -1;
1834
1835                                 // Invalidate the start_buf if we're actually going to call a Seek method.
1836                                 start_buf_pos += start_buf_len;
1837                                 start_buf_len = 0;
1838
1839                                 SeekOrigin origin;
1840
1841                                 // Translate 'whence' into a SeekOrigin enum member.
1842                                 switch (whence)
1843                                 {
1844                                         case 0: origin = SeekOrigin.Begin;   break;
1845                                         case 1: origin = SeekOrigin.Current; break;
1846                                         case 2: origin = SeekOrigin.End;     break;
1847
1848                                         // The following line is redundant but necessary to avoid a
1849                                         // "Use of unassigned local variable" error without actually
1850                                         // initializing 'origin' to a dummy value.
1851                                         default: return -1;
1852                                 }
1853
1854                                 // Do the actual seek operation and return its result.
1855                                 return stream.Seek ((long) offset, origin);
1856                         }
1857
1858                         public StreamSeekDelegate SeekDelegate {
1859                                 get {
1860                                         if (stream != null && stream.CanSeek) {
1861                                                 if (skd == null) {
1862                                                         skd = new StreamSeekDelegate (StreamSeekImpl);
1863                                                 }
1864                                                 return skd;
1865                                         }
1866                                         return null;
1867                                 }
1868                         }
1869
1870                         public int StreamPutBytesImpl (IntPtr buf, int bufsz)
1871                         {
1872                                 if (bufsz > managedBuf.Length)
1873                                         managedBuf = new byte[bufsz];
1874                                 Marshal.Copy (buf, managedBuf, 0, bufsz);
1875                                 stream.Write (managedBuf, 0, bufsz);
1876                                 return bufsz;
1877                         }
1878
1879                         public StreamPutBytesDelegate PutBytesDelegate {
1880                                 get {
1881                                         if (stream != null && stream.CanWrite) {
1882                                                 if (spbd == null) {
1883                                                         spbd = new StreamPutBytesDelegate (StreamPutBytesImpl);
1884                                                 }
1885                                                 return spbd;
1886                                         }
1887                                         return null;
1888                                 }
1889                         }
1890
1891                         public void StreamCloseImpl ()
1892                         {
1893                                 stream.Close ();
1894                         }
1895
1896                         public StreamCloseDelegate CloseDelegate {
1897                                 get {
1898                                         if (stream != null) {
1899                                                 if (scd == null) {
1900                                                         scd = new StreamCloseDelegate (StreamCloseImpl);
1901                                                 }
1902                                                 return scd;
1903                                         }
1904                                         return null;
1905                                 }
1906                         }
1907
1908                         public long StreamSizeImpl ()
1909                         {
1910                                 try {
1911                                         return stream.Length;
1912                                 } catch {
1913                                         return -1;
1914                                 }
1915                         }
1916
1917                         public StreamSizeDelegate SizeDelegate {
1918                                 get {
1919                                         if (stream != null) {
1920                                                 if (ssd == null) {
1921                                                         ssd = new StreamSizeDelegate (StreamSizeImpl);
1922                                                 }
1923                                                 return ssd;
1924                                         }
1925                                         return null;
1926                                 }
1927                         }
1928
1929                 }
1930
1931                 /* Mac only function calls */
1932                 [DllImport("gdiplus.dll")]
1933                 internal static extern Status GdipCreateFromContext_macosx (IntPtr cgref, int width, int height, out IntPtr graphics);
1934
1935                 /* Linux only function calls*/
1936                 [DllImport("gdiplus.dll")]
1937                 internal static extern Status GdipSetVisibleClip_linux (IntPtr graphics, ref Rectangle rect);
1938
1939                 [DllImport("gdiplus.dll")]
1940                 internal static extern Status GdipCreateFromXDrawable_linux (IntPtr drawable, IntPtr display, out IntPtr graphics);
1941
1942                 // Stream functions for non-Win32 (libgdiplus specific)
1943                 [DllImport("gdiplus.dll")]
1944                 static internal extern Status GdipLoadImageFromDelegate_linux (StreamGetHeaderDelegate getHeader,
1945                         StreamGetBytesDelegate getBytes, StreamPutBytesDelegate putBytes, StreamSeekDelegate doSeek,
1946                         StreamCloseDelegate close, StreamSizeDelegate size, out IntPtr image);
1947
1948                 [DllImport("gdiplus.dll")]
1949                 static internal extern Status GdipSaveImageToDelegate_linux (IntPtr image, StreamGetBytesDelegate getBytes,
1950                         StreamPutBytesDelegate putBytes, StreamSeekDelegate doSeek, StreamCloseDelegate close,
1951                         StreamSizeDelegate size, ref Guid encoderClsID, IntPtr encoderParameters);
1952
1953                 [DllImport("gdiplus.dll")]
1954                 static internal extern Status GdipCreateMetafileFromDelegate_linux (StreamGetHeaderDelegate getHeader,
1955                         StreamGetBytesDelegate getBytes, StreamPutBytesDelegate putBytes, StreamSeekDelegate doSeek,
1956                         StreamCloseDelegate close, StreamSizeDelegate size, out IntPtr metafile);
1957
1958                 [DllImport("gdiplus.dll")]
1959                 static internal extern Status GdipGetMetafileHeaderFromDelegate_linux (StreamGetHeaderDelegate getHeader,
1960                         StreamGetBytesDelegate getBytes, StreamPutBytesDelegate putBytes, StreamSeekDelegate doSeek,
1961                         StreamCloseDelegate close, StreamSizeDelegate size, IntPtr header);
1962
1963                 [DllImport("gdiplus.dll")]
1964                 static internal extern Status GdipRecordMetafileFromDelegate_linux (StreamGetHeaderDelegate getHeader,
1965                         StreamGetBytesDelegate getBytes, StreamPutBytesDelegate putBytes, StreamSeekDelegate doSeek,
1966                         StreamCloseDelegate close, StreamSizeDelegate size, IntPtr hdc, EmfType type, ref RectangleF frameRect,
1967                         MetafileFrameUnit frameUnit, [MarshalAs (UnmanagedType.LPWStr)] string description, out IntPtr metafile);
1968
1969                 [DllImport("gdiplus.dll")]
1970                 static internal extern Status GdipRecordMetafileFromDelegateI_linux (StreamGetHeaderDelegate getHeader,
1971                         StreamGetBytesDelegate getBytes, StreamPutBytesDelegate putBytes, StreamSeekDelegate doSeek,
1972                         StreamCloseDelegate close, StreamSizeDelegate size, IntPtr hdc, EmfType type, ref Rectangle frameRect,
1973                         MetafileFrameUnit frameUnit, [MarshalAs (UnmanagedType.LPWStr)] string description, out IntPtr metafile);
1974
1975                 [DllImport ("libc")]
1976                 static extern int uname (IntPtr buf);
1977 #endregion
1978         }
1979 }