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

   1 // Permission is hereby granted, free of charge, to any person obtaining
   2 // a copy of this software and associated documentation files (the
   3 // "Software"), to deal in the Software without restriction, including
   4 // without limitation the rights to use, copy, modify, merge, publish,
   5 // distribute, sublicense, and/or sell copies of the Software, and to
   6 // permit persons to whom the Software is furnished to do so, subject to
   7 // the following conditions:
   8 //
   9 // The above copyright notice and this permission notice shall be
  10 // included in all copies or substantial portions of the Software.
  11 //
  12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  19 //
  20 // Copyright (c) 2004-2006 Novell, Inc.
  21 //
  22 // Authors:
  23 //      Peter Bartok    pbartok@novell.com
  24 //
  25
  26 // NOT COMPLETE
  27
  28 using System;
  29 using System.Drawing;
  30 using System.ComponentModel;
  31 using System.ComponentModel.Design;
  32 using System.ComponentModel.Design.Serialization;
  33 using System.Collections;
  34 using System.Runtime.InteropServices;
  35 using System.Threading;
  36
  37 namespace System.Windows.Forms {
  38         [DesignerCategory("Form")]
  39         [DesignTimeVisible(false)]
  40         [Designer("System.Windows.Forms.Design.FormDocumentDesigner, " + Consts.AssemblySystem_Design, typeof(IRootDesigner))]
  41         [DefaultEvent("Load")]
  42 #if NET_2_0
  43         [ClassInterface (ClassInterfaceType.AutoDispatch)]
  44         [InitializationEvent ("Load")]
  45         [ComVisible (true)]
  46 #endif
  47         [ToolboxItem(false)]
  48         public class Form : ContainerControl {
  49                 #region Local Variables
  50                 internal bool                   closing;
  51                 FormBorderStyle                 form_border_style;
  52                 private bool                    autoscale;
  53                 private Size                    clientsize_set;
  54                 private Size                    autoscale_base_size;
  55                 private bool                    allow_transparency;
  56                 private static Icon             default_icon;
  57                 internal bool                   is_modal;
  58                 internal FormWindowState        window_state;
  59                 private bool                    control_box;
  60                 private bool                    minimize_box;
  61                 private bool                    maximize_box;
  62                 private bool                    help_button;
  63                 private bool                    show_in_taskbar;
  64                 private bool                    topmost;
  65                 private IButtonControl          accept_button;
  66                 private IButtonControl          cancel_button;
  67                 private DialogResult            dialog_result;
  68                 private FormStartPosition       start_position;
  69                 private Form                    owner;
  70                 private Form.ControlCollection  owned_forms;
  71                 private MdiClient               mdi_container;
  72                 internal InternalWindowManager  window_manager;
  73                 private Form                    mdi_parent;
  74                 private bool                    key_preview;
  75                 private MainMenu                menu;
  76                 private Icon                    icon;
  77                 private Size                    maximum_size;
  78                 private Size                    minimum_size;
  79                 private SizeGripStyle           size_grip_style;
  80                 private SizeGrip                size_grip;
  81                 private Rectangle               maximized_bounds;
  82                 private Rectangle               default_maximized_bounds;
  83                 private double                  opacity;
  84                 internal ApplicationContext     context;
  85                 Color                           transparency_key;
  86                 internal MenuTracker            active_tracker;
  87                 private bool                    is_loaded;
  88                 internal bool                   is_changing_visible_state;
  89                 internal bool                   has_been_visible;
  90
  91 #if NET_2_0
  92                 private MenuStrip               main_menu_strip;
  93                 private bool                    show_icon = true;
  94                 private bool                    shown_raised;  // The shown event is only raised once
  95 #endif
  96                 #endregion      // Local Variables
  97
  98                 #region Private & Internal Methods
  99                 static Form ()
 100                 {
 101                         default_icon = Locale.GetResource("mono.ico") as Icon;
 102                 }
 103
 104                 // warning: this is only hooked up when an mdi container is created.
 105                 private void ControlAddedHandler (object sender, ControlEventArgs e)
 106                 {
 107                         if (mdi_container != null) {
 108                                 mdi_container.SendToBack ();
 109                         }
 110                 }
 111
 112                 // Convenience method for fire BOTH OnClosing and OnFormClosing events
 113                 // Returns the value of Cancel, so true means the Close was cancelled,
 114                 // and you shouldn't close the form.
 115                 internal bool FireClosingEvents (CloseReason reason)
 116                 {
 117                         CancelEventArgs cea = new CancelEventArgs ();
 118                         this.OnClosing (cea);
 119
 120 #if NET_2_0
 121                         FormClosingEventArgs fcea = new FormClosingEventArgs (reason, cea.Cancel);
 122                         this.OnFormClosing (fcea);
 123                         return fcea.Cancel;
 124 #else
 125                         return cea.Cancel;
 126 #endif
 127                 }
 128
 129                 private void SelectActiveControl ()
 130                 {
 131                         if (this.IsMdiContainer) {
 132                                 mdi_container.SendFocusToActiveChild ();
 133                                 return;
 134                         }
 135
 136                         if (this.ActiveControl == null) {
 137                                 bool visible;
 138
 139                                 // This visible hack is to work around CanSelect always being false if one of the parents
 140                                 // is not visible; and we by default create Form invisible...
 141                                 visible = this.is_visible;
 142                                 this.is_visible = true;
 143
 144                                 if (SelectNextControl (this, true, true, true, true) == false) {
 145                                         Select (this);
 146                                 }
 147
 148                                 this.is_visible = visible;
 149                         } else {
 150                                 Select (ActiveControl);
 151                         }
 152                 }
 153
 154                 private new void UpdateSizeGripVisible ()
 155                 {
 156                         // Following link explains when to show size grip:
 157                         // http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=138687&SiteID=1
 158                         // if SizeGripStyle.Auto, only shown if form is shown using ShowDialog and is sizable
 159                         // if SizeGripStyle.Show, only shown if form is sizable
 160
 161                         bool show = false;
 162
 163                         switch (size_grip_style) {
 164                         case SizeGripStyle.Auto:
 165                                 show = is_modal && (form_border_style == FormBorderStyle.Sizable || form_border_style == FormBorderStyle.SizableToolWindow);
 166                                 break;
 167                         case SizeGripStyle.Hide:
 168                                 show = false;
 169                                 break;
 170                         case SizeGripStyle.Show:
 171                                 show = (form_border_style == FormBorderStyle.Sizable || form_border_style == FormBorderStyle.SizableToolWindow);
 172                                 break;
 173                         }
 174
 175                         if (!show) {
 176                                 if (size_grip != null && size_grip.Visible)
 177                                         size_grip.Visible = false;
 178                         } else {
 179                                 if (size_grip == null) {
 180                                         size_grip = new SizeGrip (this);
 181                                         size_grip.Virtual = true;
 182                                         size_grip.FillBackground = false;
 183                                 }
 184                                 size_grip.Visible = true;
 185                         }
 186                 }
 187
 188                 #endregion      // Private & Internal Methods
 189
 190                 #region Public Classes
 191 #if NET_2_0
 192                 [ComVisible (false)]
 193 #endif
 194                 public new class ControlCollection : Control.ControlCollection {
 195                         Form    form_owner;
 196
 197                         public ControlCollection(Form owner) : base(owner) {
 198                                 this.form_owner = owner;
 199                         }
 200
 201                         public override void Add(Control value) {
 202                                 if (Contains (value))
 203                                         return;
 204                                 AddToList (value);
 205                                 ((Form)value).owner=form_owner;
 206                         }
 207
 208                         public override void Remove(Control value) {
 209                                 ((Form)value).owner = null;
 210                                 base.Remove (value);
 211                         }
 212                 }
 213                 #endregion      // Public Classes
 214
 215                 #region Public Constructor & Destructor
 216                 public Form ()
 217                 {
 218                         SizeF current_scale = GetAutoScaleSize (DeviceContext, Font);
 219
 220                         autoscale = true;
 221                         autoscale_base_size = new Size ((int)current_scale.Width, (int) current_scale.Height);
 222                         allow_transparency = false;
 223                         closing = false;
 224                         is_modal = false;
 225                         dialog_result = DialogResult.None;
 226                         start_position = FormStartPosition.WindowsDefaultLocation;
 227                         form_border_style = FormBorderStyle.Sizable;
 228                         window_state = FormWindowState.Normal;
 229                         key_preview = false;
 230                         opacity = 1D;
 231                         menu = null;
 232                         icon = default_icon;
 233                         minimum_size = Size.Empty;
 234                         maximum_size = Size.Empty;
 235                         clientsize_set = Size.Empty;
 236                         control_box = true;
 237                         minimize_box = true;
 238                         maximize_box = true;
 239                         help_button = false;
 240                         show_in_taskbar = true;
 241                         is_visible = false;
 242                         is_toplevel = true;
 243                         size_grip_style = SizeGripStyle.Auto;
 244                         maximized_bounds = Rectangle.Empty;
 245                         default_maximized_bounds = Rectangle.Empty;
 246                         owned_forms = new Form.ControlCollection(this);
 247                         transparency_key = Color.Empty;
 248
 249                         // FIXME: this should disappear just as soon as the handle creation is done in the right place (here is too soon()
 250                         UpdateBounds();
 251
 252                 }
 253                 #endregion      // Public Constructor & Destructor
 254
 255                 #region Public Static Properties
 256
 257                 public static Form ActiveForm {
 258                         get {
 259                                 Control active;
 260
 261                                 active = FromHandle(XplatUI.GetActive());
 262
 263                                 if (active != null) {
 264                                         if ( !(active is Form)) {
 265                                                 Control parent;
 266
 267                                                 parent = active.Parent;
 268                                                 while (parent != null) {
 269                                                         if (parent is Form) {
 270                                                                 return (Form)parent;
 271                                                         }
 272                                                         parent = parent.Parent;
 273                                                 }
 274                                         } else {
 275                                                 return (Form)active;
 276                                         }
 277                                 }
 278                                 return null;
 279                         }
 280                 }
 281
 282                 #endregion      // Public Static Properties
 283
 284                 #region Public Instance Properties
 285                 [DefaultValue(null)]
 286                 public IButtonControl AcceptButton {
 287                         get {
 288                                 return accept_button;
 289                         }
 290
 291                         set {
 292                                 accept_button = value;
 293                                 CheckAcceptButton();
 294                         }
 295                 }
 296
 297                 [Browsable(false)]
 298                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 299                 public bool AllowTransparency {
 300                         get {
 301                                 return allow_transparency;
 302                         }
 303
 304                         set {
 305                                 if (value == allow_transparency) {
 306                                         return;
 307                                 }
 308
 309                                 allow_transparency = value;
 310
 311                                 if (value) {
 312                                         if (IsHandleCreated) {
 313                                                 if ((XplatUI.SupportsTransparency() & TransparencySupport.Set) != 0) {
 314                                                         XplatUI.SetWindowTransparency(Handle, Opacity, TransparencyKey);
 315                                                 }
 316                                         } else {
 317                                                 UpdateStyles(); // Remove the WS_EX_LAYERED style
 318                                         }
 319                                 }
 320                         }
 321                 }
 322
 323 #if NET_2_0
 324                 [Browsable (false)]
 325                 [EditorBrowsable (EditorBrowsableState.Never)]
 326                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 327                 [Obsolete ("This property has been deprecated in favor of AutoScaleMode.")]
 328 #else
 329                 [DefaultValue(true)]
 330 #endif
 331                 [MWFCategory("Layout")]
 332                 public bool AutoScale {
 333                         get {
 334                                 return autoscale;
 335                         }
 336
 337                         set {
 338                                 autoscale = value;
 339                         }
 340                 }
 341
 342 #if NET_2_0
 343                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 344                 [EditorBrowsable(EditorBrowsableState.Never)]
 345 #else
 346                 [EditorBrowsable(EditorBrowsableState.Advanced)]
 347 #endif
 348                 [Localizable(true)]
 349                 [Browsable(false)]
 350                 public virtual Size AutoScaleBaseSize {
 351                         get {
 352                                 return autoscale_base_size;
 353                         }
 354
 355                         set {
 356                                 autoscale_base_size = value;
 357                         }
 358                 }
 359
 360                 [Localizable(true)]
 361                 public override bool AutoScroll {
 362                         get {
 363                                 return base.AutoScroll;
 364                         }
 365                         set {
 366                                 base.AutoScroll = value;
 367                         }
 368                 }
 369
 370                 public override Color BackColor {
 371                         get {
 372                                 /* we don't let parents override our
 373                                  default background color for forms.
 374                                  this fixes the default color for mdi
 375                                  children. */
 376                                 if (background_color.IsEmpty)
 377                                         return DefaultBackColor;
 378                                 else
 379                                         return background_color;
 380                         }
 381                         set {
 382                                 base.BackColor = value;
 383                         }
 384                 }
 385
 386                 [DefaultValue(null)]
 387                 public IButtonControl CancelButton {
 388                         get {
 389                                 return cancel_button;
 390                         }
 391
 392                         set {
 393                                 cancel_button = value;
 394                                 if (cancel_button != null && cancel_button.DialogResult == DialogResult.None)
 395                                         cancel_button.DialogResult = DialogResult.Cancel;
 396                         }
 397                 }
 398
 399                 // new property so we can change the DesignerSerializationVisibility
 400                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
 401                 [Localizable(true)]
 402                 public new Size ClientSize {
 403                         get { return base.ClientSize; }
 404                         set { base.ClientSize = value; }
 405                 }
 406
 407                 [DefaultValue(true)]
 408                 [MWFCategory("Window Style")]
 409                 public bool ControlBox {
 410                         get {
 411                                 return control_box;
 412                         }
 413
 414                         set {
 415                                 if (control_box != value) {
 416                                         control_box = value;
 417                                         UpdateStyles();
 418                                 }
 419                         }
 420                 }
 421
 422                 [Browsable(false)]
 423                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 424                 public Rectangle DesktopBounds {
 425                         get {
 426                                 return new Rectangle(Location, Size);
 427                         }
 428
 429                         set {
 430                                 Bounds = value;
 431                         }
 432                 }
 433
 434                 [Browsable(false)]
 435                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 436                 public Point DesktopLocation {
 437                         get {
 438                                 return Location;
 439                         }
 440
 441                         set {
 442                                 Location = value;
 443                         }
 444                 }
 445
 446                 [Browsable(false)]
 447                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 448                 public DialogResult DialogResult {
 449                         get {
 450                                 return dialog_result;
 451                         }
 452
 453                         set {
 454                                 if (value < DialogResult.None || value > DialogResult.No)
 455                                         throw new InvalidEnumArgumentException ("value", (int) value,
 456                                                         typeof (DialogResult));
 457
 458                                 dialog_result = value;
 459                                 closing = (dialog_result != DialogResult.None && is_modal);
 460                         }
 461                 }
 462
 463                 [DefaultValue(FormBorderStyle.Sizable)]
 464                 [DispId(-504)]
 465                 [MWFCategory("Appearance")]
 466                 public FormBorderStyle FormBorderStyle {
 467                         get {
 468                                 return form_border_style;
 469                         }
 470                         set {
 471                                 form_border_style = value;
 472
 473                                 if (window_manager == null) {
 474                                         if (IsHandleCreated) {
 475                                                 XplatUI.SetBorderStyle(window.Handle, form_border_style);
 476                                         }
 477                                 } else {
 478                                         window_manager.UpdateBorderStyle (value);
 479                                 }
 480
 481                                 UpdateStyles();
 482
 483                                 if (this.Visible)
 484                                         this.Size = SizeFromClientSize (this.ClientSize);
 485                                 else
 486                                         XplatUI.InvalidateNC (this.Handle);
 487                         }
 488                 }
 489
 490                 [DefaultValue(false)]
 491                 [MWFCategory("Window Style")]
 492                 public bool HelpButton {
 493                         get {
 494                                 return help_button;
 495                         }
 496
 497                         set {
 498                                 if (help_button != value) {
 499                                         help_button = value;
 500                                         UpdateStyles();
 501                                 }
 502                         }
 503                 }
 504
 505                 [Localizable(true)]
 506                 [AmbientValue(null)]
 507                 [MWFCategory("Window Style")]
 508                 public Icon Icon {
 509                         get {
 510                                 return icon;
 511                         }
 512
 513                         set {
 514                                 if (icon != value) {
 515                                         icon = value;
 516
 517                                         if (IsHandleCreated) {
 518                                                 XplatUI.SetIcon(Handle, icon == null ? default_icon : icon);
 519                                         }
 520                                 }
 521                         }
 522                 }
 523
 524                 [Browsable(false)]
 525                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 526                 public bool IsMdiChild {
 527                         get {
 528                                 return mdi_parent != null;
 529                         }
 530                 }
 531
 532                 [DefaultValue(false)]
 533                 [MWFCategory("Window Style")]
 534                 public bool IsMdiContainer {
 535                         get {
 536                                 return mdi_container != null;
 537                         }
 538
 539                         set {
 540                                 if (value && mdi_container == null) {
 541                                         mdi_container = new MdiClient ();
 542                                         Controls.Add(mdi_container);
 543                                         ControlAdded += new ControlEventHandler (ControlAddedHandler);
 544                                         mdi_container.SendToBack ();
 545                                         mdi_container.SetParentText (true);
 546                                 } else if (!value && mdi_container != null) {
 547                                         Controls.Remove(mdi_container);
 548                                         mdi_container = null;
 549                                 }
 550                         }
 551                 }
 552
 553                 [Browsable(false)]
 554                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 555                 public Form ActiveMdiChild {
 556                         get {
 557                                 if (!IsMdiContainer)
 558                                         return null;
 559                                 return (Form) mdi_container.ActiveMdiChild;
 560                         }
 561                 }
 562
 563                 [Browsable(false)]
 564                 [EditorBrowsable(EditorBrowsableState.Advanced)]
 565                 public bool IsRestrictedWindow {
 566                         get {
 567                                 return false;
 568                         }
 569                 }
 570
 571                 [DefaultValue(false)]
 572                 public bool KeyPreview {
 573                         get {
 574                                 return key_preview;
 575                         }
 576
 577                         set {
 578                                 key_preview = value;
 579                         }
 580                 }
 581
 582 #if NET_2_0
 583                 [DefaultValue (null)]
 584                 [TypeConverter (typeof (ReferenceConverter))]
 585                 public MenuStrip MainMenuStrip {
 586                         get { return this.main_menu_strip; }
 587                         set {
 588                                 if (this.main_menu_strip != value) {
 589                                         this.main_menu_strip = value;
 590                                         this.main_menu_strip.RefreshMdiItems ();
 591                                 }
 592                         }
 593                 }
 594
 595                 [EditorBrowsable (EditorBrowsableState.Never)]
 596                 [Browsable (false)]
 597                 public new Padding Margin {
 598                         get { return base.Margin; }
 599                         set { base.Margin = value; }
 600                 }
 601 #endif
 602
 603                 [DefaultValue(true)]
 604                 [MWFCategory("Window Style")]
 605                 public bool MaximizeBox {
 606                         get {
 607                                 return maximize_box;
 608                         }
 609                         set {
 610                                 if (maximize_box != value) {
 611                                         maximize_box = value;
 612                                         if (IsHandleCreated) {
 613                                                 RecreateHandle();
 614                                         }
 615                                         UpdateStyles();
 616                                 }
 617                         }
 618                 }
 619
 620                 [DefaultValue("{Width=0, Height=0}")]
 621                 [Localizable(true)]
 622                 [RefreshProperties(RefreshProperties.Repaint)]
 623                 [MWFCategory("Layout")]
 624                 public
 625 #if NET_2_0
 626                 override
 627 #endif
 628                 Size MaximumSize {
 629                         get {
 630                                 return maximum_size;
 631                         }
 632
 633                         set {
 634                                 if (maximum_size != value) {
 635                                         maximum_size = value;
 636                                         OnMaximumSizeChanged(EventArgs.Empty);
 637                                         if (IsHandleCreated) {
 638                                                 XplatUI.SetWindowMinMax(Handle, maximized_bounds, minimum_size, maximum_size);
 639                                         }
 640                                 }
 641                         }
 642                 }
 643
 644                 [Browsable(false)]
 645                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 646                 public Form[] MdiChildren {
 647                         get {
 648                                 if (mdi_container != null)
 649                                         return mdi_container.MdiChildren;
 650                                 else
 651                                         return new Form[0];
 652                         }
 653                 }
 654
 655                 [Browsable(false)]
 656                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 657                 public Form MdiParent {
 658                         get {
 659                                 return mdi_parent;
 660                         }
 661
 662                         set {
 663                                 if (value != null && !value.IsMdiContainer)
 664                                         throw new ArgumentException ("Form that was specified to be "
 665                                                 + "the MdiParent for this form is not an MdiContainer.");
 666
 667                                 if (mdi_parent != null) {
 668                                         mdi_parent.MdiContainer.Controls.Remove (this);
 669                                 }
 670
 671                                 if (value != null) {
 672                                         mdi_parent = value;
 673                                         window_manager = new MdiWindowManager (this,
 674                                                         mdi_parent.MdiContainer);
 675                                         mdi_parent.MdiContainer.Controls.Add (this);
 676                                         mdi_parent.MdiContainer.Controls.SetChildIndex (this, 0);
 677
 678                                         RecreateHandle ();
 679
 680                                 } else if (mdi_parent != null) {
 681                                         mdi_parent = null;
 682
 683                                         // Create a new window manager
 684                                         window_manager = null;
 685                                         FormBorderStyle = form_border_style;
 686
 687                                         RecreateHandle ();
 688                                 }
 689                         }
 690                 }
 691
 692                 internal MenuTracker ActiveTracker {
 693                         get { return active_tracker; }
 694                         set {
 695                                 if (value == active_tracker)
 696                                         return;
 697
 698                                 Capture = value != null;
 699                                 active_tracker = value;
 700                         }
 701                 }
 702
 703                 internal MdiClient MdiContainer {
 704                         get { return mdi_container; }
 705                 }
 706
 707                 internal InternalWindowManager WindowManager {
 708                         get { return window_manager; }
 709                 }
 710
 711 #if NET_2_0
 712                 [Browsable (false)]
 713                 [TypeConverter (typeof (ReferenceConverter))]
 714 #endif
 715                 [DefaultValue(null)]
 716                 [MWFCategory("Window Style")]
 717                 public MainMenu Menu {
 718                         get {
 719                                 return menu;
 720                         }
 721
 722                         set {
 723                                 if (menu != value) {
 724                                         menu = value;
 725
 726                                         if (menu != null && !IsMdiChild) {
 727                                                 menu.SetForm (this);
 728
 729                                                 if (IsHandleCreated) {
 730                                                         XplatUI.SetMenu (window.Handle, menu);
 731                                                 }
 732
 733                                                 if (clientsize_set != Size.Empty) {
 734                                                         SetClientSizeCore(clientsize_set.Width, clientsize_set.Height);
 735                                                 } else {
 736                                                         UpdateBounds (bounds.X, bounds.Y, bounds.Width, bounds.Height, ClientSize.Width, ClientSize.Height -
 737                                                                 ThemeEngine.Current.CalcMenuBarSize (DeviceContext, menu, ClientSize.Width));
 738                                                 }
 739                                         } else
 740                                                 UpdateBounds ();
 741                                 }
 742                         }
 743                 }
 744
 745                 [Browsable(false)]
 746                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 747                 [EditorBrowsable(EditorBrowsableState.Advanced)]
 748                 public MainMenu MergedMenu {
 749                         get {
 750                                 if (!IsMdiChild || window_manager == null)
 751                                         return null;
 752                                 return ((MdiWindowManager) window_manager).MergedMenu;
 753                         }
 754                 }
 755
 756                 // This is the menu in display and being used because of merging this can
 757                 // be different then the menu that is actually assosciated with the form
 758                 internal MainMenu ActiveMenu {
 759                         get {
 760                                 if (IsMdiChild)
 761                                         return null;
 762
 763                                 if (IsMdiContainer && mdi_container.Controls.Count > 0 &&
 764                                                 ((Form) mdi_container.Controls [0]).WindowState == FormWindowState.Maximized) {
 765                                         MdiWindowManager wm = (MdiWindowManager) ((Form) mdi_container.Controls [0]).WindowManager;
 766                                         return wm.MaximizedMenu;
 767                                 }
 768
 769                                 Form amc = ActiveMdiChild;
 770                                 if (amc == null || amc.Menu == null)
 771                                         return menu;
 772                                 return amc.MergedMenu;
 773                         }
 774                 }
 775
 776                 internal MdiWindowManager ActiveMaximizedMdiChild {
 777                         get {
 778                                 Form child = ActiveMdiChild;
 779                                 if (child == null)
 780                                         return null;
 781                                 if (child.WindowManager == null || child.window_state != FormWindowState.Maximized)
 782                                         return null;
 783                                 return (MdiWindowManager) child.WindowManager;
 784                         }
 785                 }
 786
 787                 [DefaultValue(true)]
 788                 [MWFCategory("Window Style")]
 789                 public bool MinimizeBox {
 790                         get {
 791                                 return minimize_box;
 792                         }
 793                         set {
 794                                 if (minimize_box != value) {
 795                                         minimize_box = value;
 796                                         if (IsHandleCreated) {
 797                                                 RecreateHandle();
 798                                         }
 799                                         UpdateStyles();
 800                                 }
 801                         }
 802                 }
 803
 804 #if !NET_2_0
 805                 [DefaultValue("{Width=0, Height=0}")]
 806 #endif
 807                 [Localizable(true)]
 808                 [RefreshProperties(RefreshProperties.Repaint)]
 809                 [MWFCategory("Layout")]
 810                 public
 811 #if NET_2_0
 812                 override
 813 #endif
 814                 Size MinimumSize {
 815                         get {
 816                                 return minimum_size;
 817                         }
 818
 819                         set {
 820                                 if (minimum_size != value) {
 821                                         minimum_size = value;
 822
 823                                         if ((Size.Width < value.Width) || (Size.Height < value.Height)) {
 824                                                 Size = new Size(Math.Max(Size.Width, value.Width), Math.Max(Size.Height, value.Height));
 825                                         }
 826
 827
 828                                         OnMinimumSizeChanged(EventArgs.Empty);
 829                                         if (IsHandleCreated) {
 830                                                 XplatUI.SetWindowMinMax(Handle, maximized_bounds, minimum_size, maximum_size);
 831                                         }
 832                                 }
 833                         }
 834                 }
 835
 836                 [Browsable(false)]
 837                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 838                 public bool Modal  {
 839                         get {
 840                                 return is_modal;
 841                         }
 842                 }
 843
 844                 [DefaultValue(1D)]
 845                 [TypeConverter(typeof(OpacityConverter))]
 846                 [MWFCategory("Window Style")]
 847                 public double Opacity {
 848                         get {
 849                                 if (IsHandleCreated) {
 850                                         if ((XplatUI.SupportsTransparency () & TransparencySupport.Get) != 0)
 851                                                 return XplatUI.GetWindowTransparency (Handle);
 852                                 }
 853
 854                                 return opacity;
 855                         }
 856
 857                         set {
 858                                 opacity = value;
 859
 860                                 AllowTransparency = true;
 861
 862                                 if (IsHandleCreated) {
 863                                         UpdateStyles();
 864                                         if ((XplatUI.SupportsTransparency () & TransparencySupport.Set) != 0)
 865                                                 XplatUI.SetWindowTransparency(Handle, opacity, TransparencyKey);
 866                                 }
 867                         }
 868                 }
 869
 870
 871                 [Browsable(false)]
 872                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 873                 public Form[] OwnedForms {
 874                         get {
 875                                 Form[] form_list;
 876
 877                                 form_list = new Form[owned_forms.Count];
 878
 879                                 for (int i=0; i<owned_forms.Count; i++) {
 880                                         form_list[i] = (Form)owned_forms[i];
 881                                 }
 882
 883                                 return form_list;
 884                         }
 885                 }
 886
 887                 [Browsable(false)]
 888                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 889                 public Form Owner {
 890                         get {
 891                                 return owner;
 892                         }
 893
 894                         set {
 895                                 if (owner != value) {
 896                                         if (owner != null) {
 897                                                 owner.RemoveOwnedForm(this);
 898                                         }
 899                                         owner = value;
 900                                         if (owner != null)
 901                                                 owner.AddOwnedForm(this);
 902                                         if (IsHandleCreated) {
 903                                                 if (owner != null && owner.IsHandleCreated) {
 904                                                         XplatUI.SetTopmost(this.window.Handle, owner.window.Handle, true);
 905                                                 } else {
 906                                                         XplatUI.SetTopmost(this.window.Handle, IntPtr.Zero, false);
 907                                                 }
 908                                         }
 909                                 }
 910                         }
 911                 }
 912
 913 #if NET_2_0
 914                 [DefaultValue (true)]
 915                 public bool ShowIcon {
 916                         get { return this.show_icon; }
 917                         set {
 918                                 if (this.show_icon != value ) {
 919                                         this.show_icon = value;
 920                                         UpdateStyles ();
 921
 922                                         XplatUI.SetIcon (this.Handle, value == true ? this.Icon : null);
 923                                         XplatUI.InvalidateNC (this.Handle);
 924                                 }
 925                         }
 926                 }
 927 #endif
 928
 929                 [DefaultValue(true)]
 930                 [MWFCategory("Window Style")]
 931                 public bool ShowInTaskbar {
 932                         get {
 933                                 return show_in_taskbar;
 934                         }
 935                         set {
 936                                 if (show_in_taskbar != value) {
 937                                         show_in_taskbar = value;
 938                                         if (IsHandleCreated) {
 939                                                 RecreateHandle();
 940                                         }
 941                                         UpdateStyles();
 942                                 }
 943                         }
 944                 }
 945
 946                 // new property so we can set the DesignerSerializationVisibility
 947                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 948                 [Localizable(false)]
 949                 public new Size Size {
 950                         get { return base.Size; }
 951                         set { base.Size = value; }
 952                 }
 953
 954                 [DefaultValue(SizeGripStyle.Auto)]
 955                 [MWFCategory("Window Style")]
 956                 public SizeGripStyle SizeGripStyle {
 957                         get {
 958                                 return size_grip_style;
 959                         }
 960
 961                         set {
 962                                 size_grip_style = value;
 963                                 UpdateSizeGripVisible ();
 964                         }
 965                 }
 966
 967                 [DefaultValue(FormStartPosition.WindowsDefaultLocation)]
 968                 [Localizable(true)]
 969                 [MWFCategory("Layout")]
 970                 public FormStartPosition StartPosition {
 971                         get {
 972                                 return start_position;
 973                         }
 974
 975                         set {
 976                                 if (start_position == FormStartPosition.WindowsDefaultLocation) {               // Only do this if it's not set yet
 977                                         start_position = value;
 978                                         if (IsHandleCreated) {
 979                                                 switch(start_position) {
 980                                                         case FormStartPosition.CenterParent: {
 981                                                                 CenterToParent();
 982                                                                 break;
 983                                                         }
 984
 985                                                         case FormStartPosition.CenterScreen: {
 986                                                                 CenterToScreen();
 987                                                                 break;
 988                                                         }
 989
 990                                                         case FormStartPosition.Manual: {
 991                                                                 Left = CreateParams.X;
 992                                                                 Top = CreateParams.Y;
 993                                                                 break;
 994                                                         }
 995
 996                                                         default: {
 997                                                                 break;
 998                                                         }
 999                                                 }
1000                                         }
1001                                 }
1002                         }
1003                 }
1004
1005                 // new property so we can set EditorBrowsable to never
1006                 [Browsable(false)]
1007                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
1008                 [EditorBrowsable(EditorBrowsableState.Never)]
1009                 public new int TabIndex {
1010                         get { return base.TabIndex; }
1011                         set { base.TabIndex = value; }
1012                 }
1013
1014 #if NET_2_0
1015                 [Browsable(false)]
1016                 [DefaultValue (true)]
1017                 [DispIdAttribute (-516)]
1018                 [EditorBrowsable(EditorBrowsableState.Never)]
1019                 public new bool TabStop {
1020                         get { return base.TabStop; }
1021                         set { base.TabStop = value; }
1022                 }
1023 #endif
1024
1025                 [Browsable(false)]
1026                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
1027                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1028                 public bool TopLevel {
1029                         get {
1030                                 return GetTopLevel();
1031                         }
1032
1033                         set {
1034                                 if (!value && IsMdiContainer)
1035                                         throw new ArgumentException ("MDI Container forms must be top level.");
1036                                 SetTopLevel(value);
1037                         }
1038                 }
1039
1040                 [DefaultValue(false)]
1041                 [MWFCategory("Window Style")]
1042                 public bool TopMost {
1043                         get {
1044                                 return topmost;
1045                         }
1046
1047                         set {
1048                                 if (topmost != value) {
1049                                         topmost = value;
1050                                         if (IsHandleCreated)
1051                                                 XplatUI.SetTopmost(window.Handle, owner != null ? owner.window.Handle : IntPtr.Zero, value);
1052                                 }
1053                         }
1054                 }
1055
1056                 [MWFCategory("Window Style")]
1057                 public Color TransparencyKey {
1058                         get {
1059                                 return transparency_key;
1060                         }
1061
1062                         set {
1063                                 transparency_key = value;
1064
1065                                 AllowTransparency = true;
1066                                 UpdateStyles();
1067                                 if ((XplatUI.SupportsTransparency () & TransparencySupport.Set) != 0)
1068                                         XplatUI.SetWindowTransparency(Handle, Opacity, transparency_key);
1069                         }
1070                 }
1071
1072                 [DefaultValue(FormWindowState.Normal)]
1073                 [MWFCategory("Layout")]
1074                 public FormWindowState WindowState {
1075                         get {
1076                                 if (IsHandleCreated) {
1077
1078                                         if (window_manager != null)
1079                                                 return window_manager.GetWindowState ();
1080
1081                                         FormWindowState new_state = XplatUI.GetWindowState(Handle);
1082                                         if (new_state != (FormWindowState)(-1))
1083                                                 window_state = new_state;
1084                                 }
1085
1086                                 return window_state;
1087                         }
1088
1089                         set {
1090                                 FormWindowState old_state = window_state;
1091                                 window_state = value;
1092                                 if (IsHandleCreated) {
1093
1094                                         if (window_manager != null) {
1095                                                 window_manager.SetWindowState (old_state, value);
1096                                                 return;
1097                                         }
1098
1099                                         XplatUI.SetWindowState(Handle, value);
1100                                 }
1101                         }
1102                 }
1103
1104                 #endregion      // Public Instance Properties
1105
1106                 #region Protected Instance Properties
1107                 protected override CreateParams CreateParams {
1108                         get {
1109                                 CreateParams cp = new CreateParams ();
1110
1111                                 cp.Caption = Text;
1112                                 cp.ClassName = XplatUI.DefaultClassName;
1113                                 cp.ClassStyle = 0;
1114                                 cp.Style = 0;
1115                                 cp.ExStyle = 0;
1116                                 cp.Param = 0;
1117                                 cp.Parent = IntPtr.Zero;
1118                                 cp.menu = ActiveMenu;
1119
1120                                 if (start_position == FormStartPosition.WindowsDefaultLocation && !IsMdiChild) {
1121                                         cp.X = unchecked((int)0x80000000);
1122                                         cp.Y = unchecked((int)0x80000000);
1123                                 } else {
1124                                         cp.X = Left;
1125                                         cp.Y = Top;
1126                                 }
1127                                 cp.Width = Width;
1128                                 cp.Height = Height;
1129
1130                                 cp.Style = (int)(WindowStyles.WS_CLIPCHILDREN | WindowStyles.WS_CLIPSIBLINGS);
1131
1132                                 if (Parent != null) {
1133                                         cp.Parent = Parent.Handle;
1134                                         cp.Style |= (int) WindowStyles.WS_CHILD;
1135                                 }
1136
1137                                 if (IsMdiChild) {
1138                                         cp.Style |= (int)(WindowStyles.WS_CHILD | WindowStyles.WS_CAPTION);
1139                                         if (Parent != null) {
1140                                                 cp.Parent = Parent.Handle;
1141                                         }
1142
1143                                         cp.ExStyle |= (int) (WindowExStyles.WS_EX_WINDOWEDGE | WindowExStyles.WS_EX_MDICHILD);
1144
1145                                         switch (FormBorderStyle) {
1146                                         case FormBorderStyle.None:
1147                                                 break;
1148                                         case FormBorderStyle.FixedToolWindow:
1149                                         case FormBorderStyle.SizableToolWindow:
1150                                                 cp.ExStyle |= (int) WindowExStyles.WS_EX_TOOLWINDOW;
1151                                                 goto default;
1152                                         default:
1153                                                 cp.Style |= (int) WindowStyles.WS_OVERLAPPEDWINDOW;
1154                                                 break;
1155                                         }
1156
1157                                 } else {
1158                                         switch (FormBorderStyle) {
1159                                                 case FormBorderStyle.Fixed3D: {
1160                                                         cp.Style |= (int)(WindowStyles.WS_CAPTION | WindowStyles.WS_BORDER);
1161                                                         cp.ExStyle |= (int)WindowExStyles.WS_EX_CLIENTEDGE;
1162                                                         break;
1163                                                 }
1164
1165                                                 case FormBorderStyle.FixedDialog: {
1166                                                         cp.Style |= (int)(WindowStyles.WS_CAPTION | WindowStyles.WS_BORDER);
1167                                                         cp.ExStyle |= (int)(WindowExStyles.WS_EX_DLGMODALFRAME | WindowExStyles.WS_EX_CONTROLPARENT);
1168                                                         break;
1169                                                 }
1170
1171                                                 case FormBorderStyle.FixedSingle: {
1172                                                         cp.Style |= (int)(WindowStyles.WS_CAPTION | WindowStyles.WS_BORDER);
1173                                                         break;
1174                                                 }
1175
1176                                                 case FormBorderStyle.FixedToolWindow: {
1177                                                         cp.Style |= (int)(WindowStyles.WS_CAPTION | WindowStyles.WS_BORDER);
1178                                                         cp.ExStyle |= (int)(WindowExStyles.WS_EX_TOOLWINDOW);
1179                                                         break;
1180                                                 }
1181
1182                                                 case FormBorderStyle.Sizable: {
1183                                                         cp.Style |= (int)(WindowStyles.WS_BORDER | WindowStyles.WS_THICKFRAME | WindowStyles.WS_CAPTION);
1184                                                         break;
1185                                                 }
1186
1187                                                 case FormBorderStyle.SizableToolWindow: {
1188                                                         cp.Style |= (int)(WindowStyles.WS_BORDER | WindowStyles.WS_THICKFRAME | WindowStyles.WS_CAPTION);
1189                                                         cp.ExStyle |= (int)(WindowExStyles.WS_EX_TOOLWINDOW);
1190                                                         break;
1191                                                 }
1192
1193                                                 case FormBorderStyle.None: {
1194                                                         break;
1195                                                 }
1196                                         }
1197                                 }
1198
1199                                 switch(window_state) {
1200                                         case FormWindowState.Maximized: {
1201                                                 cp.Style |= (int)WindowStyles.WS_MAXIMIZE;
1202                                                 break;
1203                                         }
1204
1205                                         case FormWindowState.Minimized: {
1206                                                 cp.Style |= (int)WindowStyles.WS_MINIMIZE;
1207                                                 break;
1208                                         }
1209                                 }
1210
1211                                 if (TopMost) {
1212                                         cp.ExStyle |= (int) WindowExStyles.WS_EX_TOPMOST;
1213                                 }
1214
1215                                 if (ShowInTaskbar) {
1216                                         cp.ExStyle |= (int)WindowExStyles.WS_EX_APPWINDOW;
1217                                 }
1218
1219                                 if (MaximizeBox) {
1220                                         cp.Style |= (int)WindowStyles.WS_MAXIMIZEBOX;
1221                                 }
1222
1223                                 if (MinimizeBox) {
1224                                         cp.Style |= (int)WindowStyles.WS_MINIMIZEBOX;
1225                                 }
1226
1227                                 if (ControlBox) {
1228                                         cp.Style |= (int)WindowStyles.WS_SYSMENU;
1229                                 }
1230
1231 #if NET_2_0
1232                                 if (!this.show_icon) {
1233                                         cp.ExStyle |= (int)WindowExStyles.WS_EX_DLGMODALFRAME;
1234                                 }
1235 #endif
1236
1237                                 if (HelpButton && !MaximizeBox && !MinimizeBox) {
1238                                         cp.ExStyle |= (int)WindowExStyles.WS_EX_CONTEXTHELP;
1239                                 }
1240
1241                                 if (Visible)
1242                                         cp.Style |= (int)WindowStyles.WS_VISIBLE;
1243
1244                                 if (opacity < 1.0 || TransparencyKey != Color.Empty) {
1245                                         cp.ExStyle |= (int)WindowExStyles.WS_EX_LAYERED;
1246                                 }
1247
1248                                 if (!is_enabled && context == null) {
1249                                         cp.Style |= (int)(WindowStyles.WS_DISABLED);
1250                                 }
1251
1252                                 return cp;
1253                         }
1254                 }
1255
1256                 protected override ImeMode DefaultImeMode {
1257                         get {
1258                                 return ImeMode.NoControl;
1259                         }
1260                 }
1261
1262                 protected override Size DefaultSize {
1263                         get {
1264                                 return new Size (300, 300);
1265                         }
1266                 }
1267
1268                 protected Rectangle MaximizedBounds {
1269                         get {
1270                                 if (maximized_bounds != Rectangle.Empty) {
1271                                         return maximized_bounds;
1272                                 }
1273                                 return default_maximized_bounds;
1274                         }
1275
1276                         set {
1277                                 maximized_bounds = value;
1278                                 OnMaximizedBoundsChanged(EventArgs.Empty);
1279                                 if (IsHandleCreated) {
1280                                         XplatUI.SetWindowMinMax(Handle, maximized_bounds, minimum_size, maximum_size);
1281                                 }
1282                         }
1283                 }
1284                 #endregion      // Protected Instance Properties
1285
1286                 #region Public Static Methods
1287 #if NET_2_0
1288                 [EditorBrowsable(EditorBrowsableState.Never)]
1289                 [Obsolete ("This method has been deprecated.  Use AutoScaleDimensions instead")]
1290 #else
1291                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1292 #endif
1293                 public static SizeF GetAutoScaleSize (Font font)
1294                 {
1295                         return XplatUI.GetAutoScaleSize(font);
1296                 }
1297
1298                 #endregion      // Public Static Methods
1299
1300                 #region Public Instance Methods
1301                 internal SizeF GetAutoScaleSize (Graphics g, Font font)
1302                 {
1303                         //
1304                         // The following constants come from the dotnet mailing list
1305                         // discussion: http://discuss.develop.com/archives/wa.exe?A2=ind0203A&L=DOTNET&P=R3655
1306                         //
1307                         // The magic number is "Its almost the length
1308                         // of the string with a smattering added in
1309                         // for compat with earlier code".
1310                         //
1311
1312                         string magic_string = "The quick brown fox jumped over the lazy dog.";
1313                         double magic_number = 44.549996948242189;
1314                         float width = (float) (g.MeasureString (magic_string, font).Width / magic_number);
1315
1316                         return new SizeF (width, font.Height);
1317                 }
1318
1319                 public void Activate ()
1320                 {
1321                         Form    active;
1322
1323                         // The docs say activate only activates if our app is already active
1324                         if (IsHandleCreated) {
1325                                 if (IsMdiChild) {
1326                                         MdiParent.ActivateMdiChild (this);
1327                                 } else if (IsMdiContainer) {
1328                                         mdi_container.SendFocusToActiveChild ();
1329                                 } else {
1330                                         active = ActiveForm;
1331                                         if ((active != null) && (this != active)) {
1332                                                 XplatUI.Activate(window.Handle);
1333                                         }
1334                                 }
1335                         }
1336                 }
1337
1338                 public void AddOwnedForm(Form ownedForm) {
1339                         if (!owned_forms.Contains(ownedForm)) {
1340                                 owned_forms.Add(ownedForm);
1341                         }
1342                         ownedForm.Owner = this;
1343                 }
1344
1345                 public void Close () {
1346                         if (IsDisposed)
1347                                 return;
1348
1349                         if (!is_visible)
1350                                 return;
1351
1352                         XplatUI.SendMessage(this.Handle, Msg.WM_CLOSE, IntPtr.Zero, IntPtr.Zero);
1353                 }
1354
1355                 public void LayoutMdi(MdiLayout value) {
1356                         if (mdi_container != null) {
1357                                 mdi_container.LayoutMdi(value);
1358                         }
1359                 }
1360
1361                 public void RemoveOwnedForm(Form ownedForm) {
1362                         owned_forms.Remove(ownedForm);
1363                 }
1364
1365                 public void SetDesktopBounds(int x, int y, int width, int height) {
1366                         DesktopBounds = new Rectangle(x, y, width, height);
1367                 }
1368
1369                 public void SetDesktopLocation(int x, int y) {
1370                         DesktopLocation = new Point(x, y);
1371                 }
1372
1373 #if NET_2_0
1374                 public void Show (IWin32Window owner)
1375                 {
1376                         if (owner == null)
1377                                 this.Owner = null;
1378                         else
1379                                 this.Owner = Control.FromHandle (owner.Handle).TopLevelControl as Form;
1380
1381                         if (owner == this)
1382                                 throw new InvalidOperationException ("The 'owner' cannot be the form being shown.");
1383
1384                         base.Show ();
1385                 }
1386 #endif
1387
1388                 public DialogResult ShowDialog() {
1389                         return ShowDialog(this.owner);
1390                 }
1391
1392                 public DialogResult ShowDialog(IWin32Window ownerWin32) {
1393                         Rectangle       area;
1394                         bool            confined;
1395                         IntPtr          capture_window;
1396
1397                         owner = null;
1398
1399                         if (ownerWin32 != null) {
1400                                 Control c = Control.FromHandle (ownerWin32.Handle);
1401                                 if (c != null)
1402                                         owner = c.TopLevelControl as Form;
1403                         }
1404
1405                         if (owner == this) {
1406                                 throw new ArgumentException ("Forms cannot own themselves or their owners.", "owner");
1407                         }
1408
1409                         if (is_modal) {
1410                                 throw new InvalidOperationException ("The form is already displayed as a modal dialog.");
1411                         }
1412
1413                         if (Visible) {
1414                                 throw new InvalidOperationException ("Forms that are already "
1415                                         + " visible cannot be displayed as a modal dialog. Set the"
1416                                         + " form's visible property to false before calling"
1417                                         + " ShowDialog.");
1418                         }
1419
1420                         if (!Enabled) {
1421                                 throw new InvalidOperationException ("Forms that are not enabled"
1422                                         + " cannot be displayed as a modal dialog. Set the form's"
1423                                         + " enabled property to true before calling ShowDialog.");
1424                         }
1425
1426                         if (TopLevelControl != this) {
1427                                 throw new InvalidOperationException ("Forms that are not top level"
1428                                         + " forms cannot be displayed as a modal dialog. Remove the"
1429                                         + " form from any parent form before calling ShowDialog.");
1430                         }
1431
1432                         #if broken
1433                         // Can't do this, will screw us in the modal loop
1434                         form_parent_window.Parent = this.owner;
1435                         #endif
1436
1437                         // Release any captures
1438                         XplatUI.GrabInfo(out capture_window, out confined, out area);
1439                         if (capture_window != IntPtr.Zero) {
1440                                 XplatUI.UngrabWindow(capture_window);
1441                         }
1442
1443 #if not
1444                         // Commented out; we instead let the Visible=true inside the runloop create the control
1445                         // otherwise setting DialogResult inside any of the events that are triggered by the
1446                         // create will not actually cause the form to not be displayed.
1447                         // Leaving this comment here in case there was an actual purpose to creating the control
1448                         // in here.
1449                         if (!IsHandleCreated) {
1450                                 CreateControl();
1451                         }
1452 #endif
1453
1454                         Application.RunLoop(true, new ApplicationContext(this));
1455
1456                         if (owner != null) {
1457                                 // Cannot use Activate(), it has a check for the current active window...
1458                                 XplatUI.Activate(owner.window.Handle);
1459                         }
1460
1461                         if (DialogResult != DialogResult.None) {
1462                                 return DialogResult;
1463                         }
1464                         DialogResult = DialogResult.Cancel;
1465                         return DialogResult.Cancel;
1466                 }
1467
1468                 public override string ToString() {
1469                         return GetType().FullName.ToString() + ", Text: " + Text;
1470                 }
1471                 #endregion      // Public Instance Methods
1472
1473                 #region Protected Instance Methods
1474                 protected void ActivateMdiChild(Form form) {
1475                         if (!IsMdiContainer)
1476                                 return;
1477                         mdi_container.ActivateChild (form);
1478                         OnMdiChildActivate(EventArgs.Empty);
1479                 }
1480
1481                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1482                 protected override void AdjustFormScrollbars(bool displayScrollbars) {
1483                         base.AdjustFormScrollbars (displayScrollbars);
1484                 }
1485
1486 #if NET_2_0
1487                 [EditorBrowsable(EditorBrowsableState.Never)]
1488                 [Obsolete ("This method has been deprecated")] // XXX what to use instead?
1489 #else
1490                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1491 #endif
1492                 protected void ApplyAutoScaling()
1493                 {
1494                         SizeF current_size_f = GetAutoScaleSize (DeviceContext, Font);
1495                         Size current_size = new Size ((int) current_size_f.Width, (int) current_size_f.Height);
1496                         float   dx;
1497                         float   dy;
1498
1499                         if (current_size == autoscale_base_size)
1500                                 return;
1501
1502                         if (Environment.GetEnvironmentVariable ("MONO_MWF_SCALING") == "disable"){
1503                                 return;
1504                         }
1505
1506                         //
1507                         // I tried applying the Fudge height factor from:
1508                         // http://blogs.msdn.com/mharsh/archive/2004/01/25/62621.aspx
1509                         // but it makes things larger without looking better.
1510                         //
1511                         if (current_size_f.Width != AutoScaleBaseSize.Width) {
1512                                 dx = current_size_f.Width / AutoScaleBaseSize.Width + 0.08f;
1513                         } else {
1514                                 dx = 1;
1515                         }
1516
1517                         if (current_size_f.Height != AutoScaleBaseSize.Height) {
1518                                 dy = current_size_f.Height / AutoScaleBaseSize.Height + 0.08f;
1519                         } else {
1520                                 dy = 1;
1521                         }
1522
1523                         Scale (dx, dy);
1524
1525                         AutoScaleBaseSize = current_size;
1526                 }
1527
1528                 protected void CenterToParent() {
1529                         Control ctl;
1530                         int     w;
1531                         int     h;
1532
1533                         if (Width > 0) {
1534                                 w = Width;
1535                         } else {
1536                                 w = DefaultSize.Width;
1537                         }
1538
1539                         if (Height > 0) {
1540                                 h = Height;
1541                         } else {
1542                                 h = DefaultSize.Height;
1543                         }
1544
1545                         ctl = null;
1546                         if (Parent != null) {
1547                                 ctl = Parent;
1548                         } else if (owner != null) {
1549                                 ctl = owner;
1550                         }
1551
1552                         if (owner != null) {
1553                                 this.Location = new Point(ctl.Left + ctl.Width / 2 - w /2, ctl.Top + ctl.Height / 2 - h / 2);
1554                         }
1555                 }
1556
1557                 protected void CenterToScreen() {
1558                         Size    DisplaySize;
1559                         int     w;
1560                         int     h;
1561
1562                         if (Width > 0) {
1563                                 w = Width;
1564                         } else {
1565                                 w = DefaultSize.Width;
1566                         }
1567
1568                         if (Height > 0) {
1569                                 h = Height;
1570                         } else {
1571                                 h = DefaultSize.Height;
1572                         }
1573
1574                         XplatUI.GetDisplaySize(out DisplaySize);
1575                         this.Location = new Point(DisplaySize.Width / 2 - w / 2, DisplaySize.Height / 2 - h / 2);
1576                 }
1577
1578                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1579                 protected override Control.ControlCollection CreateControlsInstance() {
1580                         return base.CreateControlsInstance ();
1581                 }
1582
1583                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1584                 protected override void CreateHandle() {
1585                         base.CreateHandle ();
1586
1587                         Application.AddForm (this);
1588
1589                         UpdateBounds();
1590
1591                         if ((XplatUI.SupportsTransparency() & TransparencySupport.Set) != 0) {
1592                                 if (allow_transparency) {
1593                                         XplatUI.SetWindowTransparency(Handle, Opacity, TransparencyKey);
1594                                 }
1595                         }
1596
1597                         XplatUI.SetWindowMinMax(window.Handle, maximized_bounds, minimum_size, maximum_size);
1598                         if ((FormBorderStyle != FormBorderStyle.FixedDialog) && (icon != null)) {
1599                                 XplatUI.SetIcon(window.Handle, icon);
1600                         }
1601
1602                         if ((owner != null) && (owner.IsHandleCreated)) {
1603                                 XplatUI.SetTopmost(window.Handle, owner.window.Handle, true);
1604                         }
1605
1606                         for (int i = 0; i < owned_forms.Count; i++) {
1607                                 if (owned_forms[i].IsHandleCreated)
1608                                         XplatUI.SetTopmost(owned_forms[i].window.Handle, window.Handle, true);
1609                         }
1610
1611                         if (window_manager != null) {
1612                                 if (window_state != FormWindowState.Normal) {
1613                                         window_manager.SetWindowState (FormWindowState.Normal, window_state);
1614                                 }
1615                                 XplatUI.RequestNCRecalc (window.Handle);
1616                         }
1617
1618                 }
1619
1620                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1621                 protected override void DefWndProc(ref Message m) {
1622                         base.DefWndProc (ref m);
1623                 }
1624
1625                 protected override void Dispose(bool disposing)
1626                 {
1627                         for (int i = 0; i < owned_forms.Count; i++)
1628                                 ((Form)owned_forms[i]).Owner = null;
1629
1630                         owned_forms.Clear ();
1631
1632                         base.Dispose (disposing);
1633
1634                         Application.RemoveForm (this);
1635                 }
1636
1637                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1638                 protected virtual void OnActivated(EventArgs e)
1639                 {
1640                         EventHandler eh = (EventHandler)(Events [ActivatedEvent]);
1641                         if (eh != null)
1642                                 eh (this, e);
1643                 }
1644
1645                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1646                 protected virtual void OnClosed(EventArgs e) {
1647                         EventHandler eh = (EventHandler)(Events [ClosedEvent]);
1648                         if (eh != null)
1649                                 eh (this, e);
1650                 }
1651
1652                 // Consider calling FireClosingEvents instead of calling this directly.
1653                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1654                 protected virtual void OnClosing(System.ComponentModel.CancelEventArgs e) {
1655                         CancelEventHandler eh = (CancelEventHandler)(Events [ClosingEvent]);
1656                         if (eh != null)
1657                                 eh (this, e);
1658                 }
1659
1660                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1661                 protected override void OnCreateControl() {
1662                         base.OnCreateControl ();
1663
1664                         if (menu != null) {
1665                                 XplatUI.SetMenu(window.Handle, menu);
1666                         }
1667
1668                         OnLoad(EventArgs.Empty);
1669
1670                         // Send initial location
1671                         OnLocationChanged(EventArgs.Empty);
1672
1673                         if (IsMdiContainer) {
1674                                 mdi_container.LayoutMdi (MdiLayout.Cascade);
1675                         }
1676                 }
1677
1678                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1679                 protected virtual void OnDeactivate(EventArgs e) {
1680                         EventHandler eh = (EventHandler)(Events [DeactivateEvent]);
1681                         if (eh != null)
1682                                 eh (this, e);
1683                 }
1684
1685                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1686                 protected override void OnFontChanged(EventArgs e) {
1687                         base.OnFontChanged (e);
1688                 }
1689
1690                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1691                 protected override void OnHandleCreated(EventArgs e) {
1692                         XplatUI.SetBorderStyle(window.Handle, form_border_style);
1693                         base.OnHandleCreated (e);
1694                 }
1695
1696                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1697                 protected override void OnHandleDestroyed(EventArgs e) {
1698                         base.OnHandleDestroyed (e);
1699                 }
1700
1701                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1702                 protected virtual void OnInputLanguageChanged(InputLanguageChangedEventArgs e) {
1703                         InputLanguageChangedEventHandler eh = (InputLanguageChangedEventHandler)(Events [InputLanguageChangedEvent]);
1704                         if (eh != null)
1705                                 eh (this, e);
1706                 }
1707
1708                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1709                 protected virtual void OnInputLanguageChanging(InputLanguageChangingEventArgs e) {
1710                         InputLanguageChangingEventHandler eh = (InputLanguageChangingEventHandler)(Events [InputLanguageChangingEvent]);
1711                         if (eh != null)
1712                                 eh (this, e);
1713                 }
1714
1715                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1716                 protected virtual void OnLoad(EventArgs e) {
1717                         if (AutoScale){
1718                                 ApplyAutoScaling ();
1719                                 AutoScale = false;
1720                         }
1721
1722                         EventHandler eh = (EventHandler)(Events [LoadEvent]);
1723                         if (eh != null)
1724                                 eh (this, e);
1725
1726                         if (!IsMdiChild) {
1727                                 switch (StartPosition) {
1728                                         case FormStartPosition.CenterScreen:
1729                                                 this.CenterToScreen();
1730                                                 break;
1731                                         case FormStartPosition.CenterParent:
1732                                                 this.CenterToParent ();
1733                                                 break;
1734                                         case FormStartPosition.Manual:
1735                                                 Left = CreateParams.X;
1736                                                 Top = CreateParams.Y;
1737                                                 break;
1738                                 }
1739                         }
1740                         is_loaded = true;
1741                 }
1742
1743                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1744                 protected virtual void OnMaximizedBoundsChanged(EventArgs e) {
1745                         EventHandler eh = (EventHandler)(Events [MaximizedBoundsChangedEvent]);
1746                         if (eh != null)
1747                                 eh (this, e);
1748                 }
1749
1750                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1751                 protected virtual void OnMaximumSizeChanged(EventArgs e) {
1752                         EventHandler eh = (EventHandler)(Events [MaximumSizeChangedEvent]);
1753                         if (eh != null)
1754                                 eh (this, e);
1755                 }
1756
1757                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1758                 protected virtual void OnMdiChildActivate(EventArgs e) {
1759                         EventHandler eh = (EventHandler)(Events [MdiChildActivateEvent]);
1760                         if (eh != null)
1761                                 eh (this, e);
1762                 }
1763
1764                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1765                 protected virtual void OnMenuComplete(EventArgs e) {
1766                         EventHandler eh = (EventHandler)(Events [MenuCompleteEvent]);
1767                         if (eh != null)
1768                                 eh (this, e);
1769                 }
1770
1771                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1772                 protected virtual void OnMenuStart(EventArgs e) {
1773                         EventHandler eh = (EventHandler)(Events [MenuStartEvent]);
1774                         if (eh != null)
1775                                 eh (this, e);
1776                 }
1777
1778                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1779                 protected virtual void OnMinimumSizeChanged(EventArgs e) {
1780                         EventHandler eh = (EventHandler)(Events [MinimumSizeChangedEvent]);
1781                         if (eh != null)
1782                                 eh (this, e);
1783                 }
1784
1785                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1786                 protected override void OnPaint (PaintEventArgs pevent) {
1787                         base.OnPaint (pevent);
1788
1789                         if (size_grip != null) {
1790                                 size_grip.HandlePaint (this, pevent);
1791                         }
1792                 }
1793
1794                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1795                 protected override void OnResize(EventArgs e) {
1796                         base.OnResize(e);
1797
1798                 }
1799
1800                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1801                 protected override void OnStyleChanged(EventArgs e) {
1802                         base.OnStyleChanged (e);
1803                 }
1804
1805                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1806                 protected override void OnTextChanged(EventArgs e) {
1807                         base.OnTextChanged (e);
1808
1809                         if (mdi_container != null)
1810                                 mdi_container.SetParentText(true);
1811                 }
1812
1813                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1814                 protected override void OnVisibleChanged(EventArgs e) {
1815                         base.OnVisibleChanged (e);
1816
1817                         if (Visible) {
1818                                 if (window_manager != null)
1819                                         window_manager.SetWindowState (WindowState, WindowState);
1820                         }
1821                 }
1822
1823                 protected override bool ProcessCmdKey(ref Message msg, Keys keyData) {
1824                         if (base.ProcessCmdKey (ref msg, keyData)) {
1825                                 return true;
1826                         }
1827
1828                         // Give our menu a shot
1829                         if (ActiveMenu != null) {
1830                                 return ActiveMenu.ProcessCmdKey(ref msg, keyData);
1831                         }
1832
1833                         if (IsMdiChild) {
1834                                 switch (keyData)
1835                                 {
1836                                 case Keys.Control | Keys.F4:
1837                                 case Keys.Control | Keys.Shift | Keys.F4:
1838                                         Close ();
1839                                         return true;
1840                                 case Keys.Control | Keys.Tab:
1841                                 case Keys.Control | Keys.F6:
1842                                         MdiParent.MdiContainer.ActivateNextChild ();
1843                                         return true;
1844                                 case Keys.Control | Keys.Shift | Keys.Tab:
1845                                 case Keys.Control | Keys.Shift | Keys.F6:
1846                                         MdiParent.MdiContainer.ActivatePreviousChild ();
1847                                         return true;
1848                                 }
1849                         }
1850
1851                         return false;
1852                 }
1853
1854                 // LAMESPEC - Not documented that Form overrides ProcessDialogChar; class-status showed
1855                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1856                 protected override bool ProcessDialogChar(char charCode) {
1857                         return base.ProcessDialogChar (charCode);
1858                 }
1859
1860                 protected override bool ProcessDialogKey(Keys keyData) {
1861                         if ((keyData & Keys.Modifiers) == 0) {
1862                                 if (keyData == Keys.Enter) {
1863                                         IntPtr window = XplatUI.GetFocus ();
1864                                         Control c = Control.FromHandle (window);
1865                                         if (c is Button && c.FindForm () == this) {
1866                                                 ((Button)c).PerformClick ();
1867                                                 return true;
1868                                         }
1869                                         else if (accept_button != null) {
1870                                                 accept_button.PerformClick();
1871                                                 return true;
1872                                         }
1873                                 } else if (keyData == Keys.Escape && cancel_button != null) {
1874                                         cancel_button.PerformClick();
1875                                         return true;
1876                                 }
1877                         }
1878                         return base.ProcessDialogKey(keyData);
1879                 }
1880
1881                 protected override bool ProcessKeyPreview(ref Message msg) {
1882                         if (key_preview) {
1883                                 if (ProcessKeyEventArgs(ref msg)) {
1884                                         return true;
1885                                 }
1886                         }
1887                         return base.ProcessKeyPreview (ref msg);
1888                 }
1889
1890                 protected override bool ProcessTabKey(bool forward) {
1891                         return SelectNextControl(ActiveControl, forward, true, true, true);
1892                 }
1893
1894 #if NET_2_0
1895                 [EditorBrowsable(EditorBrowsableState.Never)]
1896 #else
1897                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1898 #endif
1899                 protected override void ScaleCore(float dx, float dy) {
1900                         try {
1901                                 SuspendLayout();
1902
1903                                 // We can't scale max or min windows
1904                                 if (WindowState == FormWindowState.Normal) {
1905                                         // We cannot call base since base also adjusts X/Y, but
1906                                         // a form is toplevel and doesn't move
1907                                         Size    size;
1908
1909                                         size = ClientSize;
1910                                         if (!GetStyle(ControlStyles.FixedWidth)) {
1911                                                 size.Width = (int)(size.Width * dx);
1912                                         }
1913
1914                                         if (!GetStyle(ControlStyles.FixedHeight)) {
1915                                                 size.Height = (int)(size.Height * dy);
1916                                         }
1917
1918                                         ClientSize = size;
1919                                 }
1920
1921                                 /* Now scale our children */
1922                                 Control [] controls = Controls.GetAllControls ();
1923                                 for (int i=0; i < controls.Length; i++) {
1924                                         controls[i].Scale(dx, dy);
1925                                 }
1926                         }
1927
1928                         finally {
1929                                 ResumeLayout();
1930                         }
1931                 }
1932
1933                 protected override void Select(bool directed, bool forward) {
1934                         Form    parent;
1935
1936                         if (directed) {
1937                                 base.SelectNextControl(null, forward, true, true, true);
1938                         }
1939
1940                         parent = this.ParentForm;
1941                         if (parent != null) {
1942                                 parent.ActiveControl = this;
1943                         }
1944
1945                         Activate();
1946                 }
1947
1948                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1949                 protected override void SetBoundsCore(int x, int y, int width, int height, BoundsSpecified specified) {
1950                         base.SetBoundsCore (x, y, width, height, specified);
1951                 }
1952
1953                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1954                 protected override void SetClientSizeCore(int x, int y) {
1955                         if ((minimum_size.Width != 0) && (x < minimum_size.Width)) {
1956                                 x = minimum_size.Width;
1957                         } else if ((maximum_size.Width != 0) && (x > maximum_size.Width)) {
1958                                 x = maximum_size.Width;
1959                         }
1960
1961                         if ((minimum_size.Height != 0) && (y < minimum_size.Height)) {
1962                                 y = minimum_size.Height;
1963                         } else if ((maximum_size.Height != 0) && (y > maximum_size.Height)) {
1964                                 y = maximum_size.Height;
1965                         }
1966
1967                         Rectangle ClientRect = new Rectangle(0, 0, x, y);
1968                         Rectangle WindowRect;
1969                         CreateParams cp = this.CreateParams;
1970
1971                         clientsize_set = new Size(x, y);
1972
1973                         if (XplatUI.CalculateWindowRect(ref ClientRect, cp.Style, cp.ExStyle, cp.menu, out WindowRect)) {
1974                                 SetBounds(bounds.X, bounds.Y, WindowRect.Width, WindowRect.Height, BoundsSpecified.Size);
1975                         }
1976                 }
1977
1978                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1979                 protected override void SetVisibleCore(bool value) {
1980                         is_changing_visible_state = true;
1981                         has_been_visible = value || has_been_visible;
1982                         base.SetVisibleCore (value);
1983                         is_changing_visible_state = false;
1984
1985 #if NET_2_0
1986                         // Shown event is only called once, the first time the form is made visible
1987                         if (value && !shown_raised) {
1988                                 this.OnShown (EventArgs.Empty);
1989                                 shown_raised = true;
1990                         }
1991 #endif
1992                 }
1993
1994                 protected override void UpdateDefaultButton() {
1995                         base.UpdateDefaultButton ();
1996                 }
1997
1998                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1999                 protected override void WndProc(ref Message m) {
2000 #if debug
2001                         Console.WriteLine(DateTime.Now.ToLongTimeString () + " Form {0} ({2}) received message {1}", window.Handle == IntPtr.Zero ? this.Text : XplatUI.Window(window.Handle), m.ToString (), Text);
2002 #endif
2003
2004                         if (window_manager != null && window_manager.HandleMessage (ref m)) {
2005                                 return;
2006                         }
2007
2008                         switch((Msg)m.Msg) {
2009                                 case Msg.WM_DESTROY: {
2010                                         base.WndProc(ref m);
2011                                         if (!RecreatingHandle) {
2012                                                 this.closing = true;
2013                                         }
2014                                         return;
2015                                 }
2016
2017                                 case Msg.WM_CLOSE_INTERNAL: {
2018                                         DestroyHandle();
2019                                         break;
2020                                 }
2021
2022                                 case Msg.WM_CLOSE: {
2023                                         Form act = Form.ActiveForm;
2024                                         if (act != null && act != this && act.Modal == true) {
2025                                                 return;
2026                                         }
2027
2028                                         if (mdi_container != null) {
2029                                                 foreach (Form mdi_child in mdi_container.MdiChildren) {
2030                                                         mdi_child.FireClosingEvents (CloseReason.MdiFormClosing);
2031                                                 }
2032                                         }
2033
2034                                         if (!is_modal) {
2035                                                 if (!FireClosingEvents (CloseReason.UserClosing)) {
2036                                                         OnClosed (EventArgs.Empty);
2037 #if NET_2_0
2038                                                         OnFormClosed (new FormClosedEventArgs (CloseReason.UserClosing));
2039 #endif
2040                                                         closing = true;
2041                                                         Dispose ();
2042                                                 }
2043                                                 else {
2044                                                         closing = false;
2045                                                 }
2046                                         } else {
2047                                                 if (FireClosingEvents (CloseReason.UserClosing)) {
2048                                                         DialogResult = DialogResult.None;
2049                                                         closing = false;
2050                                                 }
2051                                                 else {
2052                                                         OnClosed (EventArgs.Empty);
2053 #if NET_2_0
2054                                                         OnFormClosed (new FormClosedEventArgs (CloseReason.UserClosing));
2055 #endif
2056                                                         closing = true;
2057                                                         Hide ();
2058                                                 }
2059                                         }
2060
2061                                         return;
2062                                 }
2063
2064                                 case Msg.WM_WINDOWPOSCHANGED: {
2065                                         if (WindowState != FormWindowState.Minimized) {
2066                                                 base.WndProc(ref m);
2067                                         }
2068                                         return;
2069                                 }
2070
2071 #if NET_2_0
2072                                 case Msg.WM_SYSCOMMAND: {
2073                                         // Let *Strips know the app's title bar was clicked
2074                                         if (XplatUI.IsEnabled (Handle))
2075                                                 ToolStripManager.FireAppClicked ();
2076
2077                                         base.WndProc(ref m);
2078                                         break;
2079                                 }
2080 #endif
2081
2082                                 case Msg.WM_ACTIVATE: {
2083                                         if (m.WParam != (IntPtr)WindowActiveFlags.WA_INACTIVE) {
2084                                                 if (is_loaded) {
2085                                                         SelectActiveControl ();
2086
2087                                                         if (ActiveControl != null && !ActiveControl.Focused)
2088                                                                 SendControlFocus (ActiveControl);
2089                                                 }
2090
2091                                                 OnActivated(EventArgs.Empty);
2092                                         } else {
2093                                                 OnDeactivate(EventArgs.Empty);
2094                                         }
2095                                         return;
2096                                 }
2097
2098                                 case Msg.WM_KILLFOCUS: {
2099                                         base.WndProc(ref m);
2100                                         return;
2101                                 }
2102
2103                                 case Msg.WM_SETFOCUS: {
2104                                         if (ActiveControl != null && ActiveControl != this) {
2105                                                 ActiveControl.Focus();
2106                                                 return; // FIXME - do we need to run base.WndProc, even though we just changed focus?
2107                                         }
2108                                         if (IsMdiContainer) {
2109                                                 mdi_container.SendFocusToActiveChild ();
2110                                                 return;
2111                                         }
2112                                         base.WndProc(ref m);
2113                                         return;
2114                                 }
2115
2116                                 // Menu drawing
2117                 case Msg.WM_NCHITTEST: {
2118                                         if (XplatUI.IsEnabled (Handle) && ActiveMenu != null) {
2119                                                 int x = LowOrder ((int)m.LParam.ToInt32 ());
2120                                                 int y = HighOrder ((int)m.LParam.ToInt32 ());
2121
2122                                                 XplatUI.ScreenToMenu (ActiveMenu.Wnd.window.Handle, ref x, ref y);
2123
2124                                                 // If point is under menu return HTMENU, it prevents Win32 to return HTMOVE.
2125                                                 if ((x > 0) && (y > 0) && (x < ActiveMenu.Rect.Width) && (y < ActiveMenu.Rect.Height)) {
2126                                                         m.Result = new IntPtr ((int)HitTest.HTMENU);
2127                                                         return;
2128                                                 }
2129                                         }
2130
2131                                         base.WndProc (ref m);
2132                                         return;
2133                                 }
2134
2135                 case Msg.WM_NCLBUTTONDOWN: {
2136                                         if (XplatUI.IsEnabled (Handle) && ActiveMenu != null) {
2137                                                 ActiveMenu.OnMouseDown(this, new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()), mouse_clicks, Control.MousePosition.X, Control.MousePosition.Y, 0));
2138                                         }
2139
2140                                         if (ActiveMaximizedMdiChild != null) {
2141                                                 if (ActiveMaximizedMdiChild.HandleMenuMouseDown (ActiveMenu,
2142                                                                 LowOrder ((int) m.LParam.ToInt32 ()),
2143                                                                 HighOrder ((int) m.LParam.ToInt32 ()))) {
2144                                                         // Don't let base process this message, otherwise we won't
2145                                                         // get a WM_NCLBUTTONUP.
2146                                                         return;
2147                                                 }
2148                                         }
2149                                         base.WndProc(ref m);
2150                                         return;
2151                                 }
2152
2153                 case Msg.WM_NCLBUTTONUP: {
2154                                         if (ActiveMaximizedMdiChild != null) {
2155                                                 ActiveMaximizedMdiChild.HandleMenuMouseUp (ActiveMenu,
2156                                                                 LowOrder ((int)m.LParam.ToInt32 ()),
2157                                                                 HighOrder ((int)m.LParam.ToInt32 ()));
2158                                         }
2159                                         base.WndProc (ref m);
2160                                         return;
2161                                 }
2162
2163                                 case Msg.WM_NCMOUSELEAVE: {
2164                                         if (ActiveMaximizedMdiChild != null) {
2165                                                 ActiveMaximizedMdiChild.HandleMenuMouseLeave(ActiveMenu,
2166                                                                 LowOrder((int)m.LParam.ToInt32()),
2167                                                                 HighOrder((int)m.LParam.ToInt32()));
2168                                         }
2169                                         base.WndProc(ref m);
2170                                         return;
2171                                 }
2172
2173                                 case Msg.WM_NCMOUSEMOVE: {
2174                                         if (XplatUI.IsEnabled (Handle) && ActiveMenu != null) {
2175                                                 ActiveMenu.OnMouseMove(this, new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()), mouse_clicks, LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()), 0));
2176                                         }
2177
2178                                         if (ActiveMaximizedMdiChild != null) {
2179                                                 XplatUI.RequestAdditionalWM_NCMessages (Handle, false, true);
2180                                                 ActiveMaximizedMdiChild.HandleMenuMouseMove (ActiveMenu,
2181                                                                 LowOrder ((int)m.LParam.ToInt32 ()),
2182                                                                 HighOrder ((int)m.LParam.ToInt32 ()));
2183                                         }
2184                                         base.WndProc(ref m);
2185                                         return;
2186                                 }
2187
2188                                 case Msg.WM_NCPAINT: {
2189                                         if (ActiveMenu != null) {
2190                                                 PaintEventArgs  pe;
2191                                                 Point           pnt;
2192
2193                                                 pe = XplatUI.PaintEventStart(Handle, false);
2194                                                 pnt = XplatUI.GetMenuOrigin(window.Handle);
2195
2196                                                 // The entire menu has to be in the clip rectangle because the
2197                                                 // control buttons are right-aligned and otherwise they would
2198                                                 // stay painted when the window gets resized.
2199                                                 Rectangle clip = new Rectangle (pnt.X, pnt.Y, ClientSize.Width, 0);
2200                                                 clip = Rectangle.Union(clip, pe.ClipRectangle);
2201                                                 pe.SetClip(clip);
2202                                                 pe.Graphics.SetClip(clip);
2203
2204                                                 ActiveMenu.Draw (pe, new Rectangle (pnt.X, pnt.Y, ClientSize.Width, 0));
2205
2206                                                 if (ActiveMaximizedMdiChild != null) {
2207                                                         ActiveMaximizedMdiChild.DrawMaximizedButtons (ActiveMenu, pe);
2208                                                 }
2209
2210                                                 XplatUI.PaintEventEnd(Handle, false);
2211                                         }
2212
2213                                         base.WndProc(ref m);
2214                                         return;
2215                                 }
2216
2217                                 case Msg.WM_NCCALCSIZE: {
2218                                         XplatUIWin32.NCCALCSIZE_PARAMS  ncp;
2219
2220                                         if ((ActiveMenu != null) && (m.WParam == (IntPtr)1)) {
2221                                                 ncp = (XplatUIWin32.NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(XplatUIWin32.NCCALCSIZE_PARAMS));
2222
2223                                                 // Adjust for menu
2224                                                 ncp.rgrc1.top += ThemeEngine.Current.CalcMenuBarSize (DeviceContext, ActiveMenu, ClientSize.Width);
2225                                                 Marshal.StructureToPtr(ncp, m.LParam, true);
2226                                         }
2227                                         DefWndProc(ref m);
2228                                         break;
2229                                 }
2230
2231                                 case Msg.WM_MOUSEMOVE: {
2232                                         if (XplatUI.IsEnabled (Handle) && active_tracker != null) {
2233                                                 MouseEventArgs args;
2234
2235                                                 args = new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()),
2236                                                         mouse_clicks,  LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()),  0);
2237                                                 active_tracker.OnMotion(new MouseEventArgs (args.Button, args.Clicks, Control.MousePosition.X, Control.MousePosition.Y, args.Delta));
2238                                                 break;
2239                                         }
2240                                         base.WndProc(ref m);
2241                                         break;
2242                                 }
2243
2244                                 case Msg.WM_LBUTTONDOWN:
2245                                 case Msg.WM_MBUTTONDOWN:
2246                                 case Msg.WM_RBUTTONDOWN: {
2247                                         if (XplatUI.IsEnabled (Handle) && active_tracker != null) {
2248                                                 MouseEventArgs args;
2249
2250                                                 args = new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()),
2251                                                         mouse_clicks, LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()), 0);
2252                                                 active_tracker.OnMouseDown(new MouseEventArgs (args.Button, args.Clicks, Control.MousePosition.X, Control.MousePosition.Y, args.Delta));
2253                                                 return;
2254                                         }
2255 #if NET_2_0
2256                                         ToolStripManager.FireAppClicked ();
2257 #endif
2258                                         base.WndProc (ref m);
2259                                         return;
2260                                 }
2261
2262                                 case Msg.WM_LBUTTONUP:
2263                                 case Msg.WM_MBUTTONUP:
2264                                 case Msg.WM_RBUTTONUP: {
2265                                         if (XplatUI.IsEnabled (Handle) && active_tracker != null) {
2266                                                 MouseEventArgs args;
2267                                                 MouseButtons mb = FromParamToMouseButtons ((int) m.WParam.ToInt32());
2268
2269                                                 // We add in the button that was released (not sent in WParam)
2270                                                 switch((Msg)m.Msg) {
2271                                                         case Msg.WM_LBUTTONUP:
2272                                                                 mb |= MouseButtons.Left;
2273                                                                 break;
2274                                                         case Msg.WM_MBUTTONUP:
2275                                                                 mb |= MouseButtons.Middle;
2276                                                                 break;
2277                                                         case Msg.WM_RBUTTONUP:
2278                                                                 mb |= MouseButtons.Right;
2279                                                                 break;
2280                                                 }
2281
2282                                                 args = new MouseEventArgs (mb, mouse_clicks, LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()), 0);
2283                                                 active_tracker.OnMouseUp(new MouseEventArgs (args.Button, args.Clicks, Control.MousePosition.X, Control.MousePosition.Y, args.Delta));
2284                                                 mouse_clicks = 1;
2285                                                 return;
2286                                         }
2287                                         base.WndProc(ref m);
2288                                         return;
2289                                 }
2290
2291                                 case Msg.WM_GETMINMAXINFO: {
2292                                         MINMAXINFO      mmi;
2293
2294                                         if (m.LParam != IntPtr.Zero) {
2295                                                 mmi = (MINMAXINFO)Marshal.PtrToStructure(m.LParam, typeof(MINMAXINFO));
2296
2297                                                 default_maximized_bounds = new Rectangle(mmi.ptMaxPosition.x, mmi.ptMaxPosition.y, mmi.ptMaxSize.x, mmi.ptMaxSize.y);
2298                                                 if (maximized_bounds != Rectangle.Empty) {
2299                                                         mmi.ptMaxPosition.x = maximized_bounds.Left;
2300                                                         mmi.ptMaxPosition.y = maximized_bounds.Top;
2301                                                         mmi.ptMaxSize.x = maximized_bounds.Width;
2302                                                         mmi.ptMaxSize.y = maximized_bounds.Height;
2303                                                 }
2304
2305                                                 if (minimum_size != Size.Empty) {
2306                                                         mmi.ptMinTrackSize.x = minimum_size.Width;
2307                                                         mmi.ptMinTrackSize.y = minimum_size.Height;
2308                                                 }
2309
2310                                                 if (maximum_size != Size.Empty) {
2311                                                         mmi.ptMaxTrackSize.x = maximum_size.Width;
2312                                                         mmi.ptMaxTrackSize.y = maximum_size.Height;
2313                                                 }
2314                                                 Marshal.StructureToPtr(mmi, m.LParam, false);
2315                                         }
2316                                         break;
2317                                 }
2318
2319 #if NET_2_0
2320                                 case Msg.WM_MOUSEACTIVATE: {
2321                                         // Let *Strips know the form or another control has been clicked
2322                                         if (XplatUI.IsEnabled (Handle))
2323                                                 ToolStripManager.FireAppClicked ();
2324
2325                                         base.WndProc (ref m);
2326                                         break;
2327                                 }
2328
2329                                 case Msg.WM_ACTIVATEAPP: {
2330                                         // Let *Strips know the app lost focus
2331                                         if (m.WParam == (IntPtr)0)
2332                                                 if (XplatUI.IsEnabled (Handle))
2333                                                         ToolStripManager.FireAppFocusChanged (this);
2334
2335                                         base.WndProc (ref m);
2336                                         break;
2337                                 }
2338 #endif
2339
2340                                 default: {
2341                                         base.WndProc (ref m);
2342                                         break;
2343                                 }
2344                         }
2345                 }
2346                 #endregion      // Protected Instance Methods
2347
2348                 internal override void FireEnter ()
2349                 {
2350                         // do nothing - forms don't generate OnEnter
2351                 }
2352
2353                 internal override void FireLeave ()
2354                 {
2355                         // do nothing - forms don't generate OnLeave
2356                 }
2357
2358                 internal void RemoveWindowManager ()
2359                 {
2360                         window_manager = null;
2361                 }
2362
2363                 internal override void CheckAcceptButton()
2364                 {
2365                         if (accept_button != null) {
2366                                 Button a_button = accept_button as Button;
2367
2368                                 if (ActiveControl == a_button)
2369                                         return;
2370
2371                                 if (ActiveControl is Button) {
2372                                         a_button.paint_as_acceptbutton = false;
2373                                         a_button.Redraw();
2374                                         return;
2375                                 } else {
2376                                         a_button.paint_as_acceptbutton = true;
2377                                         a_button.Redraw();
2378                                 }
2379                         }
2380                 }
2381
2382                 #region Events
2383                 static object ActivatedEvent = new object ();
2384                 static object ClosedEvent = new object ();
2385                 static object ClosingEvent = new object ();
2386                 static object DeactivateEvent = new object ();
2387                 static object InputLanguageChangedEvent = new object ();
2388                 static object InputLanguageChangingEvent = new object ();
2389                 static object LoadEvent = new object ();
2390                 static object MaximizedBoundsChangedEvent = new object ();
2391                 static object MaximumSizeChangedEvent = new object ();
2392                 static object MdiChildActivateEvent = new object ();
2393                 static object MenuCompleteEvent = new object ();
2394                 static object MenuStartEvent = new object ();
2395                 static object MinimumSizeChangedEvent = new object ();
2396
2397                 public event EventHandler Activated {
2398                         add { Events.AddHandler (ActivatedEvent, value); }
2399                         remove { Events.RemoveHandler (ActivatedEvent, value); }
2400                 }
2401
2402 #if NET_2_0
2403                 [Browsable (false)]
2404                 [EditorBrowsable (EditorBrowsableState.Never)]
2405 #endif
2406                 public event EventHandler Closed {
2407                         add { Events.AddHandler (ClosedEvent, value); }
2408                         remove { Events.RemoveHandler (ClosedEvent, value); }
2409                 }
2410
2411 #if NET_2_0
2412                 [Browsable (false)]
2413                 [EditorBrowsable (EditorBrowsableState.Never)]
2414 #endif
2415                 public event CancelEventHandler Closing {
2416                         add { Events.AddHandler (ClosingEvent, value); }
2417                         remove { Events.RemoveHandler (ClosingEvent, value); }
2418                 }
2419
2420                 public event EventHandler Deactivate {
2421                         add { Events.AddHandler (DeactivateEvent, value); }
2422                         remove { Events.RemoveHandler (DeactivateEvent, value); }
2423                 }
2424
2425                 public event InputLanguageChangedEventHandler InputLanguageChanged {
2426                         add { Events.AddHandler (InputLanguageChangedEvent, value); }
2427                         remove { Events.RemoveHandler (InputLanguageChangedEvent, value); }
2428                 }
2429
2430                 public event InputLanguageChangingEventHandler InputLanguageChanging {
2431                         add { Events.AddHandler (InputLanguageChangingEvent, value); }
2432                         remove { Events.RemoveHandler (InputLanguageChangingEvent, value); }
2433                 }
2434
2435                 public event EventHandler Load {
2436                         add { Events.AddHandler (LoadEvent, value); }
2437                         remove { Events.RemoveHandler (LoadEvent, value); }
2438                 }
2439
2440                 public event EventHandler MaximizedBoundsChanged {
2441                         add { Events.AddHandler (MaximizedBoundsChangedEvent, value); }
2442                         remove { Events.RemoveHandler (MaximizedBoundsChangedEvent, value); }
2443                 }
2444
2445                 public event EventHandler MaximumSizeChanged {
2446                         add { Events.AddHandler (MaximumSizeChangedEvent, value); }
2447                         remove { Events.RemoveHandler (MaximumSizeChangedEvent, value); }
2448                 }
2449
2450                 public event EventHandler MdiChildActivate {
2451                         add { Events.AddHandler (MdiChildActivateEvent, value); }
2452                         remove { Events.RemoveHandler (MdiChildActivateEvent, value); }
2453                 }
2454
2455 #if NET_2_0
2456                 [Browsable (false)]
2457 #endif
2458                 public event EventHandler MenuComplete {
2459                         add { Events.AddHandler (MenuCompleteEvent, value); }
2460                         remove { Events.RemoveHandler (MenuCompleteEvent, value); }
2461                 }
2462
2463 #if NET_2_0
2464                 [Browsable (false)]
2465 #endif
2466                 public event EventHandler MenuStart {
2467                         add { Events.AddHandler (MenuStartEvent, value); }
2468                         remove { Events.RemoveHandler (MenuStartEvent, value); }
2469                 }
2470
2471                 public event EventHandler MinimumSizeChanged {
2472                         add { Events.AddHandler (MinimumSizeChangedEvent, value); }
2473                         remove { Events.RemoveHandler (MinimumSizeChangedEvent, value); }
2474                 }
2475
2476
2477                 [Browsable(false)]
2478                 [EditorBrowsable(EditorBrowsableState.Never)]
2479                 public new event EventHandler TabIndexChanged {
2480                         add { base.TabIndexChanged += value; }
2481                         remove { base.TabIndexChanged -= value; }
2482                 }
2483                 #endregion      // Events
2484
2485 #if NET_2_0
2486                 [SettingsBindable (true)]
2487                 public override string Text {
2488                         get {
2489                                 return base.Text;
2490                         }
2491
2492                         set {
2493                                 base.Text = value;
2494                         }
2495                 }
2496
2497                 [SettingsBindable (true)]
2498                 public new Point Location {
2499                         get {
2500                                 return base.Location;
2501                         }
2502
2503                         set {
2504                                 base.Location = value;
2505                         }
2506                 }
2507
2508                 static object FormClosingEvent = new object ();
2509                 static object FormClosedEvent = new object ();
2510                 static object HelpButtonClickedEvent = new object ();
2511                 static object ResizeEndEvent = new object ();
2512                 static object ResizeBeginEvent = new object ();
2513                 static object RightToLeftLayoutChangedEvent = new object ();
2514                 static object ShownEvent = new object ();
2515
2516                 [Browsable (true)]
2517                 [EditorBrowsable (EditorBrowsableState.Always)]
2518                 public new event EventHandler AutoSizeChanged {
2519                         add { base.AutoSizeChanged += value; }
2520                         remove { base.AutoSizeChanged -= value; }
2521                 }
2522
2523                 [Browsable (true)]
2524                 [EditorBrowsable (EditorBrowsableState.Always)]
2525                 public new event EventHandler AutoValidateChanged {
2526                         add { base.AutoValidateChanged += value; }
2527                         remove { base.AutoValidateChanged -= value; }
2528                 }
2529
2530                 public event FormClosingEventHandler FormClosing {
2531                         add { Events.AddHandler (FormClosingEvent, value); }
2532                         remove { Events.RemoveHandler (FormClosingEvent, value); }
2533                 }
2534
2535                 public event FormClosedEventHandler FormClosed {
2536                         add { Events.AddHandler (FormClosedEvent, value); }
2537                         remove { Events.RemoveHandler (FormClosedEvent, value); }
2538                 }
2539
2540                 [Browsable (true)]
2541                 [EditorBrowsable (EditorBrowsableState.Always)]
2542                 public event CancelEventHandler HelpButtonClicked {
2543                         add { Events.AddHandler (HelpButtonClickedEvent, value); }
2544                         remove { Events.RemoveHandler (HelpButtonClickedEvent, value); }
2545                 }
2546
2547                 [Browsable (false)]
2548                 [EditorBrowsable (EditorBrowsableState.Never)]
2549                 public new event EventHandler MarginChanged {
2550                         add { base.MarginChanged += value; }
2551                         remove { base.MarginChanged -= value; }
2552                 }
2553
2554                 public event EventHandler RightToLeftLayoutChanged {
2555                         add { Events.AddHandler (RightToLeftLayoutChangedEvent, value); }
2556                         remove { Events.RemoveHandler (RightToLeftLayoutChangedEvent, value); }
2557                 }
2558
2559                 public event EventHandler ResizeBegin {
2560                         add { Events.AddHandler (ResizeBeginEvent, value); }
2561                         remove { Events.RemoveHandler (ResizeBeginEvent, value); }
2562                 }
2563
2564                 public event EventHandler ResizeEnd {
2565                         add { Events.AddHandler (ResizeEndEvent, value); }
2566                         remove { Events.RemoveHandler (ResizeEndEvent, value); }
2567                 }
2568
2569                 public event EventHandler Shown {
2570                         add { Events.AddHandler (ShownEvent, value); }
2571                         remove { Events.RemoveHandler (ShownEvent, value); }
2572                 }
2573
2574                 [Browsable (false)]
2575                 [EditorBrowsable (EditorBrowsableState.Never)]
2576                 public new event EventHandler TabStopChanged {
2577                         add { base.TabStopChanged += value; }
2578                         remove { base.TabStopChanged -= value; }
2579                 }
2580
2581                 protected override void OnBackgroundImageChanged (EventArgs e)
2582                 {
2583                         base.OnBackgroundImageChanged (e);
2584                 }
2585
2586                 protected override void OnBackgroundImageLayoutChanged (EventArgs e)
2587                 {
2588                         base.OnBackgroundImageLayoutChanged (e);
2589                 }
2590
2591                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2592                 protected override void OnEnabledChanged (EventArgs e)
2593                 {
2594                         base.OnEnabledChanged (e);
2595                 }
2596
2597                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2598                 protected override void OnEnter (EventArgs e)
2599                 {
2600                         base.OnEnter (e);
2601                 }
2602
2603                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2604                 protected virtual void OnFormClosed (FormClosedEventArgs e) {
2605                         FormClosedEventHandler eh = (FormClosedEventHandler)(Events[FormClosedEvent]);
2606                         if (eh != null)
2607                                 eh (this, e);
2608                 }
2609
2610                 // Consider calling FireClosingEvents instead of calling this directly.
2611                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2612                 protected virtual void OnFormClosing (FormClosingEventArgs e)
2613                 {
2614                         FormClosingEventHandler eh = (FormClosingEventHandler)(Events [FormClosingEvent]);
2615                         if (eh != null)
2616                                 eh (this, e);
2617                 }
2618
2619                 [MonoTODO ("Not hooked up to event")]
2620                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2621                 protected virtual void OnHelpButtonClicked (CancelEventArgs e)
2622                 {
2623                         CancelEventHandler eh = (CancelEventHandler)(Events[HelpButtonClickedEvent]);
2624                         if (eh != null)
2625                                 eh (this, e);
2626                 }
2627
2628                 protected override void OnLayout (LayoutEventArgs levent)
2629                 {
2630                         base.OnLayout (levent);
2631                 }
2632
2633                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2634                 protected virtual void OnResizeBegin (EventArgs e)
2635                 {
2636                         EventHandler eh = (EventHandler) (Events [ResizeBeginEvent]);
2637                         if (eh != null)
2638                                 eh (this, e);
2639                 }
2640
2641                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2642                 protected virtual void OnResizeEnd (EventArgs e)
2643                 {
2644                         EventHandler eh = (EventHandler) (Events [ResizeEndEvent]);
2645                         if (eh != null)
2646                                 eh (this, e);
2647                 }
2648
2649                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2650                 protected virtual void OnShown (EventArgs e)
2651                 {
2652                         EventHandler eh = (EventHandler) (Events [ShownEvent]);
2653                         if (eh != null)
2654                                 eh (this, e);
2655                 }
2656 #endif
2657         }
2658 }