src/msw/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/toplevel.cpp
   3 // Purpose:     implements wxTopLevelWindow for MSW
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     24.09.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
   9 // License:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "toplevel.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/app.h"
  33     #include "wx/toplevel.h"
  34     #include "wx/string.h"
  35     #include "wx/log.h"
  36     #include "wx/intl.h"
  37     #include "wx/frame.h"
  38 #endif //WX_PRECOMP
  39
  40 #include "wx/msw/private.h"
  41
  42 #include "wx/popupwin.h"
  43
  44 #ifndef ICON_BIG
  45     #define ICON_BIG 1
  46 #endif
  47
  48 #ifndef ICON_SMALL
  49     #define ICON_SMALL 0
  50 #endif
  51
  52 // ----------------------------------------------------------------------------
  53 // stubs for missing functions under MicroWindows
  54 // ----------------------------------------------------------------------------
  55
  56 #ifdef __WXMICROWIN__
  57
  58 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return FALSE; }
  59 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return FALSE; }
  60
  61 #endif // __WXMICROWIN__
  62
  63 // ----------------------------------------------------------------------------
  64 // globals
  65 // ----------------------------------------------------------------------------
  66
  67 // list of all frames and modeless dialogs
  68 wxWindowList wxModelessWindows;
  69
  70 // the name of the default wxWindows class
  71 extern const wxChar *wxCanvasClassName;
  72
  73 // the hidden parent for wxFRAME_NO_TASKBAR unowned frames
  74 wxWindow *wxTopLevelWindowMSW::ms_hiddenParent = NULL;
  75
  76 // ============================================================================
  77 // wxTopLevelWindowMSW implementation
  78 // ============================================================================
  79
  80 // ----------------------------------------------------------------------------
  81 // wxDialog helpers
  82 // ----------------------------------------------------------------------------
  83
  84 // Dialog window proc
  85 LONG APIENTRY _EXPORT
  86 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
  87 {
  88     switch ( message )
  89     {
  90         case WM_INITDIALOG:
  91             // for this message, returning TRUE tells system to set focus to
  92             // the first control in the dialog box, but as we set the focus
  93             // ourselves, we return FALSE from here as well, so fall through
  94
  95         default:
  96             // for all the other ones, FALSE means that we didn't process the
  97             // message
  98             return FALSE;
  99     }
 100 }
 101
 102 // ----------------------------------------------------------------------------
 103 // wxTopLevelWindowMSW creation
 104 // ----------------------------------------------------------------------------
 105
 106 void wxTopLevelWindowMSW::Init()
 107 {
 108     m_iconized =
 109     m_maximizeOnShow = FALSE;
 110
 111     // unlike (almost?) all other windows, frames are created hidden
 112     m_isShown = FALSE;
 113
 114     // Data to save/restore when calling ShowFullScreen
 115     m_fsStyle = 0;
 116     m_fsOldWindowStyle = 0;
 117     m_fsIsMaximized = FALSE;
 118     m_fsIsShowing = FALSE;
 119 }
 120
 121 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 122 {
 123     // let the base class deal with the common styles but fix the ones which
 124     // don't make sense for us (we also deal with the borders ourselves)
 125     WXDWORD msflags = wxWindow::MSWGetStyle
 126                       (
 127                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 128                       ) & ~WS_CHILD;
 129
 130     // first select the kind of window being created
 131     //
 132     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 133     // creates a window with both caption and border, hence we also test it
 134     // below in some other cases
 135     if ( style & wxFRAME_TOOL_WINDOW )
 136         msflags |= WS_POPUP;
 137     else
 138         msflags |= WS_OVERLAPPED;
 139
 140     // border and caption styles
 141     if ( style & wxRESIZE_BORDER )
 142         msflags |= WS_THICKFRAME;
 143     else if ( !(style & wxBORDER_NONE) )
 144         msflags |= WS_BORDER;
 145     else
 146         msflags |= WS_POPUP;
 147
 148     if ( style & wxCAPTION )
 149         msflags |= WS_CAPTION;
 150     else
 151         msflags |= WS_POPUP;
 152
 153     // next translate the individual flags
 154     if ( style & wxMINIMIZE_BOX )
 155         msflags |= WS_MINIMIZEBOX;
 156     if ( style & wxMAXIMIZE_BOX )
 157         msflags |= WS_MAXIMIZEBOX;
 158     if ( style & wxSYSTEM_MENU )
 159         msflags |= WS_SYSMENU;
 160     if ( style & wxMINIMIZE )
 161         msflags |= WS_MINIMIZE;
 162     if ( style & wxMAXIMIZE )
 163         msflags |= WS_MAXIMIZE;
 164
 165     // Keep this here because it saves recoding this function in wxTinyFrame
 166 #if wxUSE_ITSY_BITSY && !defined(__WIN32__)
 167     if ( style & wxTINY_CAPTION_VERT )
 168         msflags |= IBS_VERTCAPTION;
 169     if ( style & wxTINY_CAPTION_HORIZ )
 170         msflags |= IBS_HORZCAPTION;
 171 #else
 172     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 173         msflags |= WS_CAPTION;
 174 #endif
 175
 176     if ( exflags )
 177     {
 178 #if !defined(__WIN16__) && !defined(__SC__)
 179         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 180         {
 181             if ( style & wxFRAME_TOOL_WINDOW )
 182             {
 183                 // create the palette-like window
 184                 *exflags |= WS_EX_TOOLWINDOW;
 185             }
 186
 187             // We have to solve 2 different problems here:
 188             //
 189             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 190             //    taskbar even if they don't have a parent
 191             //
 192             // 2. frames without this style should appear in the taskbar even
 193             //    if they're owned (Windows only puts non owned windows into
 194             //    the taskbar normally)
 195             //
 196             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 197             // first one is dealt with in our MSWGetParent() method
 198             // implementation
 199             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 200             {
 201                 // need to force the frame to appear in the taskbar
 202                 *exflags |= WS_EX_APPWINDOW;
 203             }
 204             //else: nothing to do [here]
 205         }
 206 #endif // !Win16
 207
 208         if ( style & wxSTAY_ON_TOP )
 209             *exflags |= WS_EX_TOPMOST;
 210
 211 #ifdef __WIN32__
 212         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 213             *exflags |= WS_EX_CONTEXTHELP;
 214 #endif // __WIN32__
 215     }
 216
 217     return msflags;
 218 }
 219
 220 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 221 {
 222     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 223     // parent HWND or it would be always on top of its parent which is not what
 224     // we usually want (in fact, we only want it for frames with the
 225     // wxFRAME_FLOAT_ON_PARENT flag)
 226     wxWindow *parent;
 227     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 228     {
 229         parent = GetParent();
 230
 231         // this flag doesn't make sense then and will be ignored
 232         wxASSERT_MSG( parent,
 233                       _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 234     }
 235     else // don't float on parent, must not be owned
 236     {
 237         parent = NULL;
 238     }
 239
 240     // now deal with the 2nd taskbar-related problem (see comments above in
 241     // MSWGetStyle())
 242     if ( HasFlag(wxFRAME_NO_TASKBAR) && !parent )
 243     {
 244         if ( !ms_hiddenParent )
 245         {
 246             ms_hiddenParent = new wxTopLevelWindowMSW(NULL, -1, _T(""));
 247
 248             // we shouldn't leave it in wxTopLevelWindows or we wouldn't
 249             // terminate the app when the last user-created frame is deleted --
 250             // see ~wxTopLevelWindowMSW
 251             wxTopLevelWindows.DeleteObject(ms_hiddenParent);
 252         }
 253
 254         parent = ms_hiddenParent;
 255     }
 256
 257     return parent ? parent->GetHWND() : NULL;
 258 }
 259
 260 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 261                                        const wxString& title,
 262                                        const wxPoint& pos,
 263                                        const wxSize& size)
 264 {
 265 #ifdef __WXMICROWIN__
 266     // no dialogs support under MicroWin yet
 267     return CreateFrame(title, pos, size);
 268 #else // !__WXMICROWIN__
 269     wxWindow *parent = GetParent();
 270
 271     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 272     // app window as parent - this avoids creating modal dialogs without
 273     // parent
 274     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 275     {
 276         parent = wxTheApp->GetTopWindow();
 277
 278         if ( parent )
 279         {
 280             // don't use transient windows as parents, this is dangerous as it
 281             // can lead to a crash if the parent is destroyed before the child
 282             //
 283             // also don't use the window which is currently hidden as then the
 284             // dialog would be hidden as well
 285             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 286                     !parent->IsShown() )
 287             {
 288                 parent = NULL;
 289             }
 290         }
 291     }
 292
 293     m_hWnd = (WXHWND)::CreateDialogIndirect
 294                        (
 295                         wxGetInstance(),
 296                         (DLGTEMPLATE*)dlgTemplate,
 297                         parent ? GetHwndOf(parent) : NULL,
 298                         (DLGPROC)wxDlgProc
 299                        );
 300
 301     if ( !m_hWnd )
 302     {
 303         wxFAIL_MSG(_("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 304
 305         wxLogSysError(_("Can't create dialog using memory template"));
 306
 307         return FALSE;
 308     }
 309
 310     WXDWORD exflags;
 311     (void)MSWGetCreateWindowFlags(&exflags);
 312
 313     if ( exflags )
 314     {
 315         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 316         ::SetWindowPos(GetHwnd(), NULL, 0, 0, 0, 0,
 317                        SWP_NOSIZE |
 318                        SWP_NOMOVE |
 319                        SWP_NOZORDER |
 320                        SWP_NOACTIVATE);
 321     }
 322
 323 #if defined(__WIN95__)
 324     // For some reason, the system menu is activated when we use the
 325     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 326     if ( exflags & WS_EX_CONTEXTHELP )
 327     {
 328         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 329         if ( winTop )
 330         {
 331             wxIcon icon = winTop->GetIcon();
 332             if ( icon.Ok() )
 333             {
 334                 ::SendMessage(GetHwnd(), WM_SETICON,
 335                               (WPARAM)TRUE,
 336                               (LPARAM)GetHiconOf(icon));
 337             }
 338         }
 339     }
 340 #endif // __WIN95__
 341
 342     // move the dialog to its initial position without forcing repainting
 343     int x, y, w, h;
 344     if ( !MSWGetCreateWindowCoords(pos, size, x, y, w, h) )
 345     {
 346         x =
 347         w = (int)CW_USEDEFAULT;
 348     }
 349
 350     // we can't use CW_USEDEFAULT here as we're not calling CreateWindow()
 351     // and passing CW_USEDEFAULT to MoveWindow() results in resizing the
 352     // window to (0, 0) size which breaks quite a lot of things, e.g. the
 353     // sizer calculation in wxSizer::Fit()
 354     if ( w == (int)CW_USEDEFAULT )
 355     {
 356         // the exact number doesn't matter, the dialog will be resized
 357         // again soon anyhow but it should be big enough to allow
 358         // calculation relying on "totalSize - clientSize > 0" work, i.e.
 359         // at least greater than the title bar height
 360         w =
 361         h = 100;
 362     }
 363
 364     if ( x == (int)CW_USEDEFAULT )
 365     {
 366         // centre it on the screen - what else can we do?
 367         wxSize sizeDpy = wxGetDisplaySize();
 368
 369         x = (sizeDpy.x - w) / 2;
 370         y = (sizeDpy.y - h) / 2;
 371     }
 372
 373     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 374     {
 375         wxLogLastError(wxT("MoveWindow"));
 376     }
 377
 378     if ( !title.empty() )
 379     {
 380         ::SetWindowText(GetHwnd(), title);
 381     }
 382
 383     SubclassWin(m_hWnd);
 384
 385     return TRUE;
 386 #endif // __WXMICROWIN__/!__WXMICROWIN__
 387 }
 388
 389 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 390                                       const wxPoint& pos,
 391                                       const wxSize& size)
 392 {
 393     WXDWORD exflags;
 394     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 395
 396     return MSWCreate(wxCanvasClassName, title, pos, size, flags, exflags);
 397 }
 398
 399 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 400                                  wxWindowID id,
 401                                  const wxString& title,
 402                                  const wxPoint& pos,
 403                                  const wxSize& size,
 404                                  long style,
 405                                  const wxString& name)
 406 {
 407     // init our fields
 408     Init();
 409
 410     m_windowStyle = style;
 411
 412     SetName(name);
 413
 414     m_windowId = id == -1 ? NewControlId() : id;
 415
 416     wxTopLevelWindows.Append(this);
 417
 418     if ( parent )
 419         parent->AddChild(this);
 420
 421     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 422     {
 423         // we have different dialog templates to allows creation of dialogs
 424         // with & without captions under MSWindows, resizeable or not (but a
 425         // resizeable dialog always has caption - otherwise it would look too
 426         // strange)
 427
 428         // we need 3 additional WORDs for dialog menu, class and title (as we
 429         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 430         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 431         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 432         memset(dlgTemplate, 0, dlgsize);
 433
 434         // these values are arbitrary, they won't be used normally anyhow
 435         dlgTemplate->x  = 34;
 436         dlgTemplate->y  = 22;
 437         dlgTemplate->cx = 144;
 438         dlgTemplate->cy = 75;
 439
 440         // reuse the code in MSWGetStyle() but correct the results slightly for
 441         // the dialog
 442         dlgTemplate->style = MSWGetStyle(style, NULL);
 443
 444         // all dialogs are popups
 445         dlgTemplate->style |= WS_POPUP;
 446
 447         // force 3D-look if necessary, it looks impossibly ugly otherwise
 448         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 449             dlgTemplate->style |= DS_MODALFRAME;
 450
 451         bool ret = CreateDialog(dlgTemplate, title, pos, size);
 452         free(dlgTemplate);
 453
 454         return ret;
 455     }
 456     else // !dialog
 457     {
 458         return CreateFrame(title, pos, size);
 459     }
 460 }
 461
 462 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 463 {
 464     if ( this == ms_hiddenParent )
 465     {
 466         // stop [infinite] recursion which would otherwise happen when we do
 467         // "delete ms_hiddenParent" below
 468         return;
 469     }
 470
 471     wxTopLevelWindows.DeleteObject(this);
 472
 473     if ( wxModelessWindows.Find(this) )
 474         wxModelessWindows.DeleteObject(this);
 475
 476     // after destroying an owned window, Windows activates the next top level
 477     // window in Z order but it may be different from our owner (to reproduce
 478     // this simply Alt-TAB to another application and back before closing the
 479     // owned frame) whereas we always want to yield activation to our parent
 480     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 481     {
 482         wxWindow *parent = GetParent();
 483         if ( parent )
 484         {
 485             ::BringWindowToTop(GetHwndOf(parent));
 486         }
 487     }
 488
 489     // If this is the last top-level window, exit.
 490     if ( wxTheApp && (wxTopLevelWindows.Number() == 0) )
 491     {
 492         if ( ms_hiddenParent )
 493         {
 494             delete ms_hiddenParent;
 495             ms_hiddenParent = NULL;
 496         }
 497
 498         wxTheApp->SetTopWindow(NULL);
 499
 500         if ( wxTheApp->GetExitOnFrameDelete() )
 501         {
 502             ::PostQuitMessage(0);
 503         }
 504     }
 505 }
 506
 507 // ----------------------------------------------------------------------------
 508 // wxTopLevelWindowMSW showing
 509 // ----------------------------------------------------------------------------
 510
 511 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 512 {
 513     ::ShowWindow(GetHwnd(), nShowCmd);
 514
 515     m_iconized = nShowCmd == SW_MINIMIZE;
 516 }
 517
 518 bool wxTopLevelWindowMSW::Show(bool show)
 519 {
 520     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 521     if ( !wxWindowBase::Show(show) )
 522         return FALSE;
 523
 524     int nShowCmd;
 525     if ( show )
 526     {
 527         if ( m_maximizeOnShow )
 528         {
 529             // show and maximize
 530             nShowCmd = SW_MAXIMIZE;
 531
 532             m_maximizeOnShow = FALSE;
 533         }
 534         else // just show
 535         {
 536             nShowCmd = SW_SHOW;
 537         }
 538     }
 539     else // hide
 540     {
 541         nShowCmd = SW_HIDE;
 542     }
 543
 544     DoShowWindow(nShowCmd);
 545
 546     if ( show )
 547     {
 548         ::BringWindowToTop(GetHwnd());
 549
 550         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
 551         event.SetEventObject( this );
 552         GetEventHandler()->ProcessEvent(event);
 553     }
 554     else // hide
 555     {
 556         // Try to highlight the correct window (the parent)
 557         if ( GetParent() )
 558         {
 559             HWND hWndParent = GetHwndOf(GetParent());
 560             if (hWndParent)
 561                 ::BringWindowToTop(hWndParent);
 562         }
 563     }
 564
 565     return TRUE;
 566 }
 567
 568 // ----------------------------------------------------------------------------
 569 // wxTopLevelWindowMSW maximize/minimize
 570 // ----------------------------------------------------------------------------
 571
 572 void wxTopLevelWindowMSW::Maximize(bool maximize)
 573 {
 574     if ( IsShown() )
 575     {
 576         // just maximize it directly
 577         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 578     }
 579     else // hidden
 580     {
 581         // we can't maximize the hidden frame because it shows it as well, so
 582         // just remember that we should do it later in this case
 583         m_maximizeOnShow = TRUE;
 584     }
 585 }
 586
 587 bool wxTopLevelWindowMSW::IsMaximized() const
 588 {
 589     return ::IsZoomed(GetHwnd()) != 0;
 590 }
 591
 592 void wxTopLevelWindowMSW::Iconize(bool iconize)
 593 {
 594     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 595 }
 596
 597 bool wxTopLevelWindowMSW::IsIconized() const
 598 {
 599     // also update the current state
 600     ((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
 601
 602     return m_iconized;
 603 }
 604
 605 void wxTopLevelWindowMSW::Restore()
 606 {
 607     DoShowWindow(SW_RESTORE);
 608 }
 609
 610 // ----------------------------------------------------------------------------
 611 // wxTopLevelWindowMSW fullscreen
 612 // ----------------------------------------------------------------------------
 613
 614 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 615 {
 616     if (show)
 617     {
 618         if (IsFullScreen())
 619             return FALSE;
 620
 621         m_fsIsShowing = TRUE;
 622         m_fsStyle = style;
 623
 624         // zap the frame borders
 625
 626         // save the 'normal' window style
 627         m_fsOldWindowStyle = GetWindowLong((HWND)GetHWND(), GWL_STYLE);
 628
 629         // save the old position, width & height, maximize state
 630         m_fsOldSize = GetRect();
 631         m_fsIsMaximized = IsMaximized();
 632
 633         // decide which window style flags to turn off
 634         LONG newStyle = m_fsOldWindowStyle;
 635         LONG offFlags = 0;
 636
 637         if (style & wxFULLSCREEN_NOBORDER)
 638             offFlags |= WS_BORDER | WS_THICKFRAME;
 639         if (style & wxFULLSCREEN_NOCAPTION)
 640             offFlags |= (WS_CAPTION | WS_SYSMENU);
 641
 642         newStyle &= (~offFlags);
 643
 644         // change our window style to be compatible with full-screen mode
 645         ::SetWindowLong((HWND)GetHWND(), GWL_STYLE, newStyle);
 646
 647         // resize to the size of the desktop
 648         int width, height;
 649
 650         RECT rect = wxGetWindowRect(::GetDesktopWindow());
 651         width = rect.right - rect.left;
 652         height = rect.bottom - rect.top;
 653
 654         SetSize(width, height);
 655
 656         // now flush the window style cache and actually go full-screen
 657         SetWindowPos((HWND)GetHWND(), HWND_TOP, 0, 0, width, height, SWP_FRAMECHANGED);
 658
 659         wxSizeEvent event(wxSize(width, height), GetId());
 660         GetEventHandler()->ProcessEvent(event);
 661
 662         return TRUE;
 663     }
 664     else
 665     {
 666         if (!IsFullScreen())
 667             return FALSE;
 668
 669         m_fsIsShowing = FALSE;
 670
 671         Maximize(m_fsIsMaximized);
 672         SetWindowLong((HWND)GetHWND(),GWL_STYLE, m_fsOldWindowStyle);
 673         SetWindowPos((HWND)GetHWND(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 674             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 675
 676         return TRUE;
 677     }
 678 }
 679
 680 // ----------------------------------------------------------------------------
 681 // wxTopLevelWindowMSW misc
 682 // ----------------------------------------------------------------------------
 683
 684 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 685 {
 686     SetIcons( wxIconBundle( icon ) );
 687 }
 688
 689 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 690 {
 691     wxTopLevelWindowBase::SetIcons(icons);
 692
 693 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 694     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 695     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 696     {
 697         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 698                        (LPARAM)GetHiconOf(sml) );
 699     }
 700
 701     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 702     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 703     {
 704         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 705                        (LPARAM)GetHiconOf(big) );
 706     }
 707 #endif // __WIN95__
 708 }
 709
 710 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 711 {
 712 #ifndef __WXMICROWIN__
 713     // get system (a.k.a. window) menu
 714     HMENU hmenu = ::GetSystemMenu(GetHwnd(), FALSE /* get it */);
 715     if ( !hmenu )
 716     {
 717         wxLogLastError(_T("GetSystemMenu"));
 718
 719         return FALSE;
 720     }
 721
 722     // enabling/disabling the close item from it also automatically
 723     // disables/enables the close title bar button
 724     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 725                           MF_BYCOMMAND |
 726                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 727     {
 728         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 729
 730         return FALSE;
 731     }
 732
 733     // update appearance immediately
 734     if ( !::DrawMenuBar(GetHwnd()) )
 735     {
 736         wxLogLastError(_T("DrawMenuBar"));
 737     }
 738 #endif // !__WXMICROWIN__
 739
 740     return TRUE;
 741 }
 742