src/msw/app.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        app.cpp
   3 // Purpose:     wxApp
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ===========================================================================
  13 // declarations
  14 // ===========================================================================
  15
  16 // ---------------------------------------------------------------------------
  17 // headers
  18 // ---------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "app.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #if defined(__BORLANDC__)
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/frame.h"
  33     #include "wx/app.h"
  34     #include "wx/utils.h"
  35     #include "wx/gdicmn.h"
  36     #include "wx/pen.h"
  37     #include "wx/brush.h"
  38     #include "wx/cursor.h"
  39     #include "wx/icon.h"
  40     #include "wx/palette.h"
  41     #include "wx/dc.h"
  42     #include "wx/dialog.h"
  43     #include "wx/msgdlg.h"
  44     #include "wx/intl.h"
  45     #include "wx/dynarray.h"
  46     #include "wx/wxchar.h"
  47     #include "wx/icon.h"
  48     #include "wx/log.h"
  49 #endif
  50
  51 #include "wx/cmdline.h"
  52 #include "wx/module.h"
  53
  54 #include "wx/msw/private.h"
  55
  56 #if wxUSE_THREADS
  57     #include "wx/thread.h"
  58
  59     // define the array of MSG strutures
  60     WX_DECLARE_OBJARRAY(MSG, wxMsgArray);
  61
  62     #include "wx/arrimpl.cpp"
  63
  64     WX_DEFINE_OBJARRAY(wxMsgArray);
  65 #endif // wxUSE_THREADS
  66
  67 #if wxUSE_WX_RESOURCES
  68     #include "wx/resource.h"
  69 #endif
  70
  71 #if wxUSE_TOOLTIPS
  72     #include "wx/tooltip.h"
  73 #endif // wxUSE_TOOLTIPS
  74
  75 // OLE is used for drag-and-drop, clipboard, OLE Automation..., but some
  76 // compilers don't support it (missing headers, libs, ...)
  77 #if defined(__GNUWIN32_OLD__) || defined(__SC__) || defined(__SALFORDC__)
  78     #undef wxUSE_OLE
  79
  80     #define  wxUSE_OLE 0
  81 #endif // broken compilers
  82
  83 #if wxUSE_OLE
  84     #include <ole2.h>
  85 #endif
  86
  87 #include <string.h>
  88 #include <ctype.h>
  89
  90 #if defined(__WIN95__) && !((defined(__GNUWIN32_OLD__) || defined(__TWIN32__) || defined(__WXMICROWIN__)) && !defined(__CYGWIN10__))
  91     #include <commctrl.h>
  92 #endif
  93
  94 #ifndef __WXMICROWIN__
  95 #include "wx/msw/msvcrt.h"
  96 #endif
  97
  98 // ----------------------------------------------------------------------------
  99 // conditional compilation
 100 // ----------------------------------------------------------------------------
 101
 102 // The macro _WIN32_IE is defined by commctrl.h (unless it had already been
 103 // defined before) and shows us what common control features are available
 104 // during the compile time (it doesn't mean that they will be available during
 105 // the run-time, use GetComCtl32Version() to test for them!). The possible
 106 // values are:
 107 //
 108 // 0x0200     for comctl32.dll 4.00 shipped with Win95/NT 4.0
 109 // 0x0300                      4.70              IE 3.x
 110 // 0x0400                      4.71              IE 4.0
 111 // 0x0401                      4.72              IE 4.01 and Win98
 112 // 0x0500                      5.00              IE 5.x and NT 5.0 (Win2000)
 113
 114 #ifndef _WIN32_IE
 115     // minimal set of features by default
 116     #define _WIN32_IE 0x0200
 117 #endif
 118
 119 #if _WIN32_IE >= 0x0300 && !defined(__MINGW32__)
 120     #include <shlwapi.h>
 121 #endif
 122
 123 // ---------------------------------------------------------------------------
 124 // global variables
 125 // ---------------------------------------------------------------------------
 126
 127 extern wxChar *wxBuffer;
 128 extern wxList WXDLLEXPORT wxPendingDelete;
 129 #ifndef __WXMICROWIN__
 130 extern void wxSetKeyboardHook(bool doIt);
 131 #endif
 132
 133 MSG s_currentMsg;
 134 wxApp *wxTheApp = NULL;
 135
 136 // NB: all "NoRedraw" classes must have the same names as the "normal" classes
 137 //     with NR suffix - wxWindow::MSWCreate() supposes this
 138 const wxChar *wxFrameClassName         = wxT("wxFrameClass");
 139 const wxChar *wxFrameClassNameNoRedraw = wxT("wxFrameClassNR");
 140 const wxChar *wxMDIFrameClassName      = wxT("wxMDIFrameClass");
 141 const wxChar *wxMDIFrameClassNameNoRedraw = wxT("wxMDIFrameClassNR");
 142 const wxChar *wxMDIChildFrameClassName = wxT("wxMDIChildFrameClass");
 143 const wxChar *wxMDIChildFrameClassNameNoRedraw = wxT("wxMDIChildFrameClassNR");
 144 const wxChar *wxPanelClassName         = wxT("wxPanelClass");
 145 const wxChar *wxPanelClassNameNR       = wxT("wxPanelClassNR");
 146 const wxChar *wxCanvasClassName        = wxT("wxCanvasClass");
 147 const wxChar *wxCanvasClassNameNR      = wxT("wxCanvasClassNR");
 148
 149 HICON wxSTD_FRAME_ICON = (HICON) NULL;
 150 HICON wxSTD_MDICHILDFRAME_ICON = (HICON) NULL;
 151 HICON wxSTD_MDIPARENTFRAME_ICON = (HICON) NULL;
 152
 153 HICON wxDEFAULT_FRAME_ICON = (HICON) NULL;
 154 HICON wxDEFAULT_MDICHILDFRAME_ICON = (HICON) NULL;
 155 HICON wxDEFAULT_MDIPARENTFRAME_ICON = (HICON) NULL;
 156
 157 HBRUSH wxDisableButtonBrush = (HBRUSH) 0;
 158
 159 LRESULT WXDLLEXPORT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM);
 160
 161 // FIXME wxUSE_ON_FATAL_EXCEPTION is only supported for VC++ now because it
 162 //       needs compiler support for Win32 SEH. Others (especially Borland)
 163 //       probably have it too, but I'm not sure about how it works
 164 // JACS: get 'Cannot use __try in functions that require unwinding
 165 // in Unicode mode, so disabling.
 166 #if !defined(__VISUALC__) || defined(__WIN16__) || defined(UNICODE)
 167     #undef wxUSE_ON_FATAL_EXCEPTION
 168     #define wxUSE_ON_FATAL_EXCEPTION 0
 169 #endif // VC++
 170
 171 #if wxUSE_ON_FATAL_EXCEPTION
 172     static bool gs_handleExceptions = FALSE;
 173 #endif
 174
 175 // ===========================================================================
 176 // implementation
 177 // ===========================================================================
 178
 179 // ---------------------------------------------------------------------------
 180 // wxApp
 181 // ---------------------------------------------------------------------------
 182
 183 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 184
 185 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 186     EVT_IDLE(wxApp::OnIdle)
 187     EVT_END_SESSION(wxApp::OnEndSession)
 188     EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 189 END_EVENT_TABLE()
 190
 191 //// Initialize
 192 bool wxApp::Initialize()
 193 {
 194     // the first thing to do is to check if we're trying to run an Unicode
 195     // program under Win9x - if so, abort right now as it has no chance to
 196     // work
 197 #if wxUSE_UNICODE
 198     if ( wxGetOsVersion() != wxWINDOWS_NT )
 199     {
 200         // note that we can use MessageBoxW() as it's implemented even under
 201         // Win9x - OTOH, we can't use wxGetTranslation() because the file APIs
 202         // used by wxLocale are not
 203         ::MessageBox
 204         (
 205          NULL,
 206          _T("This program uses Unicode and requires Windows NT/2000.\nProgram aborted."),
 207          _T("wxWindows Fatal Error"),
 208          MB_ICONERROR | MB_OK
 209         );
 210
 211         return FALSE;
 212     }
 213 #endif // wxUSE_UNICODE
 214
 215     // Some people may wish to use this, but
 216     // probably it shouldn't be here by default.
 217 #ifdef __WXDEBUG__
 218     //    wxRedirectIOToConsole();
 219 #endif
 220
 221     wxBuffer = new wxChar[1500]; // FIXME
 222
 223     wxClassInfo::InitializeClasses();
 224
 225 #if wxUSE_THREADS
 226     wxPendingEventsLocker = new wxCriticalSection;
 227 #endif
 228
 229     wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
 230     wxTheColourDatabase->Initialize();
 231
 232     wxInitializeStockLists();
 233     wxInitializeStockObjects();
 234
 235 #if wxUSE_WX_RESOURCES
 236     wxInitializeResourceSystem();
 237 #endif
 238
 239     wxBitmap::InitStandardHandlers();
 240
 241 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 242     InitCommonControls();
 243 #endif // __WIN95__
 244
 245 #if wxUSE_OLE || wxUSE_DRAG_AND_DROP
 246
 247 #ifdef __WIN16__
 248     // for OLE, enlarge message queue to be as large as possible
 249     int iMsg = 96;
 250     while (!SetMessageQueue(iMsg) && (iMsg -= 8))
 251         ;
 252 #endif // Win16
 253
 254     // we need to initialize OLE library
 255     if ( FAILED(::OleInitialize(NULL)) )
 256         wxLogError(_("Cannot initialize OLE"));
 257
 258 #endif // wxUSE_OLE
 259
 260 #if wxUSE_CTL3D
 261     if (!Ctl3dRegister(wxhInstance))
 262         wxLogError(wxT("Cannot register CTL3D"));
 263
 264     Ctl3dAutoSubclass(wxhInstance);
 265 #endif // wxUSE_CTL3D
 266
 267     // VZ: these icons are not in wx.rc anyhow (but should they?)!
 268 #if 0
 269     wxSTD_FRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_FRAME"));
 270     wxSTD_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_MDIPARENTFRAME"));
 271     wxSTD_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_MDICHILDFRAME"));
 272
 273     wxDEFAULT_FRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_FRAME"));
 274     wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_MDIPARENTFRAME"));
 275     wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_MDICHILDFRAME"));
 276 #endif // 0
 277
 278     RegisterWindowClasses();
 279
 280 #ifndef __WXMICROWIN__
 281     // Create the brush for disabling bitmap buttons
 282
 283     LOGBRUSH lb;
 284     lb.lbStyle = BS_PATTERN;
 285     lb.lbColor = 0;
 286     lb.lbHatch = (int)LoadBitmap( wxhInstance, wxT("wxDISABLE_BUTTON_BITMAP") );
 287     if ( lb.lbHatch )
 288     {
 289         wxDisableButtonBrush = ::CreateBrushIndirect( & lb );
 290         ::DeleteObject( (HGDIOBJ)lb.lbHatch );
 291     }
 292     //else: wxWindows resources are probably not linked in
 293 #endif
 294
 295 #if wxUSE_PENWINDOWS
 296     wxRegisterPenWin();
 297 #endif
 298
 299     wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100);
 300
 301     // This is to foil optimizations in Visual C++ that throw out dummy.obj.
 302     // PLEASE DO NOT ALTER THIS.
 303 #if defined(__VISUALC__) && defined(__WIN16__) && !defined(WXMAKINGDLL)
 304     extern char wxDummyChar;
 305     if (wxDummyChar) wxDummyChar++;
 306 #endif
 307
 308 #ifndef __WXMICROWIN__
 309     wxSetKeyboardHook(TRUE);
 310 #endif
 311
 312     wxModule::RegisterModules();
 313     if (!wxModule::InitializeModules())
 314         return FALSE;
 315     return TRUE;
 316 }
 317
 318 // ---------------------------------------------------------------------------
 319 // RegisterWindowClasses
 320 // ---------------------------------------------------------------------------
 321
 322 // TODO we should only register classes really used by the app. For this it
 323 //      would be enough to just delay the class registration until an attempt
 324 //      to create a window of this class is made.
 325 bool wxApp::RegisterWindowClasses()
 326 {
 327     WNDCLASS wndclass;
 328
 329     // for each class we register one with CS_(V|H)REDRAW style and one
 330     // without for windows created with wxNO_FULL_REDRAW_ON_REPAINT flag
 331     static const long styleNormal = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
 332     static const long styleNoRedraw = CS_DBLCLKS;
 333
 334     // the fields which are common to all classes
 335     wndclass.lpfnWndProc   = (WNDPROC)wxWndProc;
 336     wndclass.cbClsExtra    = 0;
 337     wndclass.cbWndExtra    = sizeof( DWORD ); // VZ: what is this DWORD used for?
 338     wndclass.hInstance     = wxhInstance;
 339     wndclass.hIcon         = (HICON) NULL;
 340     wndclass.hCursor       = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW);
 341     wndclass.lpszMenuName  = NULL;
 342
 343     // Register the frame window class.
 344     wndclass.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE + 1);
 345     wndclass.lpszClassName = wxFrameClassName;
 346     wndclass.style         = styleNormal;
 347
 348     if ( !RegisterClass(&wndclass) )
 349     {
 350         wxLogLastError(wxT("RegisterClass(frame)"));
 351
 352         return FALSE;
 353     }
 354
 355     // "no redraw" frame
 356     wndclass.lpszClassName = wxFrameClassNameNoRedraw;
 357     wndclass.style         = styleNoRedraw;
 358
 359     if ( !RegisterClass(&wndclass) )
 360     {
 361         wxLogLastError(wxT("RegisterClass(no redraw frame)"));
 362
 363         return FALSE;
 364     }
 365
 366     // Register the MDI frame window class.
 367     wndclass.hbrBackground = (HBRUSH)NULL; // paint MDI frame ourselves
 368     wndclass.lpszClassName = wxMDIFrameClassName;
 369     wndclass.style         = styleNormal;
 370
 371     if ( !RegisterClass(&wndclass) )
 372     {
 373         wxLogLastError(wxT("RegisterClass(MDI parent)"));
 374
 375         return FALSE;
 376     }
 377
 378     // "no redraw" MDI frame
 379     wndclass.lpszClassName = wxMDIFrameClassNameNoRedraw;
 380     wndclass.style         = styleNoRedraw;
 381
 382     if ( !RegisterClass(&wndclass) )
 383     {
 384         wxLogLastError(wxT("RegisterClass(no redraw MDI parent frame)"));
 385
 386         return FALSE;
 387     }
 388
 389     // Register the MDI child frame window class.
 390     wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
 391     wndclass.lpszClassName = wxMDIChildFrameClassName;
 392     wndclass.style         = styleNormal;
 393
 394     if ( !RegisterClass(&wndclass) )
 395     {
 396         wxLogLastError(wxT("RegisterClass(MDI child)"));
 397
 398         return FALSE;
 399     }
 400
 401     // "no redraw" MDI child frame
 402     wndclass.lpszClassName = wxMDIChildFrameClassNameNoRedraw;
 403     wndclass.style         = styleNoRedraw;
 404
 405     if ( !RegisterClass(&wndclass) )
 406     {
 407         wxLogLastError(wxT("RegisterClass(no redraw MDI child)"));
 408
 409         return FALSE;
 410     }
 411
 412     // Register the panel window class.
 413     wndclass.hbrBackground = (HBRUSH) GetStockObject( LTGRAY_BRUSH );
 414     wndclass.lpszClassName = wxPanelClassName;
 415     wndclass.style         = styleNormal;
 416
 417     if ( !RegisterClass(&wndclass) )
 418     {
 419         wxLogLastError(wxT("RegisterClass(panel)"));
 420
 421         return FALSE;
 422     }
 423
 424     // Register the no redraw panel window class.
 425     wndclass.lpszClassName = wxPanelClassNameNR;
 426     wndclass.style         = styleNoRedraw;
 427
 428     if ( !RegisterClass(&wndclass) )
 429     {
 430         wxLogLastError(wxT("RegisterClass(no redraw panel)"));
 431
 432         return FALSE;
 433     }
 434
 435     // Register the canvas and textsubwindow class name
 436     wndclass.hbrBackground = (HBRUSH)NULL;
 437     wndclass.lpszClassName = wxCanvasClassName;
 438
 439     if ( !RegisterClass(&wndclass) )
 440     {
 441         wxLogLastError(wxT("RegisterClass(canvas)"));
 442
 443         return FALSE;
 444     }
 445
 446     wndclass.lpszClassName = wxCanvasClassNameNR;
 447     wndclass.style         = styleNoRedraw;
 448     if ( !RegisterClass(&wndclass) )
 449     {
 450         wxLogLastError(wxT("RegisterClass(no redraw canvas)"));
 451
 452         return FALSE;
 453     }
 454
 455     return TRUE;
 456 }
 457
 458 // ---------------------------------------------------------------------------
 459 // UnregisterWindowClasses
 460 // ---------------------------------------------------------------------------
 461
 462 bool wxApp::UnregisterWindowClasses()
 463 {
 464     bool retval = TRUE;
 465
 466     // frame window class.
 467     if ( !UnregisterClass(wxFrameClassName, wxhInstance) )
 468     {
 469         wxLogLastError(wxT("UnregisterClass(frame)"));
 470
 471         retval = FALSE;
 472     }
 473
 474     // "no redraw" frame
 475     if ( !UnregisterClass(wxFrameClassNameNoRedraw, wxhInstance) )
 476     {
 477         wxLogLastError(wxT("UnregisterClass(no redraw frame)"));
 478
 479         return FALSE;
 480     }
 481
 482     // MDI frame window class.
 483     if ( !UnregisterClass(wxMDIFrameClassName, wxhInstance) )
 484     {
 485         wxLogLastError(wxT("UnregisterClass(MDI parent)"));
 486
 487         retval = FALSE;
 488     }
 489
 490     // "no redraw" MDI frame
 491     if ( !UnregisterClass(wxMDIFrameClassNameNoRedraw, wxhInstance) )
 492     {
 493         wxLogLastError(wxT("UnregisterClass(no redraw MDI parent frame)"));
 494
 495         retval = FALSE;
 496     }
 497
 498     // MDI child frame window class.
 499     if ( !UnregisterClass(wxMDIChildFrameClassName, wxhInstance) )
 500     {
 501         wxLogLastError(wxT("UnregisterClass(MDI child)"));
 502
 503         retval = FALSE;
 504     }
 505
 506     // "no redraw" MDI child frame
 507     if ( !UnregisterClass(wxMDIChildFrameClassNameNoRedraw, wxhInstance) )
 508     {
 509         wxLogLastError(wxT("UnregisterClass(no redraw MDI child)"));
 510
 511         retval = FALSE;
 512     }
 513
 514     // panel window class.
 515     if ( !UnregisterClass(wxPanelClassName, wxhInstance) )
 516     {
 517         wxLogLastError(wxT("UnregisterClass(panel)"));
 518
 519         retval = FALSE;
 520     }
 521
 522     // no redraw panel window class.
 523     if ( !UnregisterClass(wxPanelClassNameNR, wxhInstance) )
 524     {
 525         wxLogLastError(wxT("UnregisterClass(no redraw panel)"));
 526
 527         retval = FALSE;
 528     }
 529
 530     // canvas and textsubwindow class name
 531     if ( !UnregisterClass(wxCanvasClassName, wxhInstance) )
 532     {
 533         wxLogLastError(wxT("UnregisterClass(canvas)"));
 534
 535         retval = FALSE;
 536     }
 537
 538     if ( !UnregisterClass(wxCanvasClassNameNR, wxhInstance) )
 539     {
 540         wxLogLastError(wxT("UnregisterClass(no redraw canvas)"));
 541
 542         retval = FALSE;
 543     }
 544
 545     return retval;
 546 }
 547
 548 // ---------------------------------------------------------------------------
 549 // Convert Windows to argc, argv style
 550 // ---------------------------------------------------------------------------
 551
 552 void wxApp::ConvertToStandardCommandArgs(const char* lpCmdLine)
 553 {
 554     // break the command line in words
 555     wxArrayString args =
 556         wxCmdLineParser::ConvertStringToArgs(wxConvertMB2WX(lpCmdLine));
 557
 558     // +1 here for the program name
 559     argc = args.GetCount() + 1;
 560
 561     // and +1 here for the terminating NULL
 562     argv = new wxChar *[argc + 1];
 563
 564     argv[0] = new wxChar[260]; // 260 is MAX_PATH value from windef.h
 565     ::GetModuleFileName(wxhInstance, argv[0], 260);
 566
 567     for ( int i = 1; i < argc; i++ )
 568     {
 569         argv[i] = copystring(args[i - 1]);
 570     }
 571
 572     // argv[] must be NULL-terminated
 573     argv[argc] = NULL;
 574 }
 575
 576 //// Cleans up any wxWindows internal structures left lying around
 577
 578 void wxApp::CleanUp()
 579 {
 580     //// COMMON CLEANUP
 581
 582 #if wxUSE_LOG
 583     // flush the logged messages if any and install a 'safer' log target: the
 584     // default one (wxLogGui) can't be used after the resources are freed just
 585     // below and the user suppliedo ne might be even more unsafe (using any
 586     // wxWindows GUI function is unsafe starting from now)
 587     wxLog::DontCreateOnDemand();
 588
 589     // this will flush the old messages if any
 590     delete wxLog::SetActiveTarget(new wxLogStderr);
 591 #endif // wxUSE_LOG
 592
 593     // One last chance for pending objects to be cleaned up
 594     wxTheApp->DeletePendingObjects();
 595
 596     wxModule::CleanUpModules();
 597
 598 #if wxUSE_WX_RESOURCES
 599     wxCleanUpResourceSystem();
 600
 601     //  wxDefaultResourceTable->ClearTable();
 602 #endif
 603
 604     wxDeleteStockObjects();
 605
 606     // Destroy all GDI lists, etc.
 607     wxDeleteStockLists();
 608
 609     delete wxTheColourDatabase;
 610     wxTheColourDatabase = NULL;
 611
 612     wxBitmap::CleanUpHandlers();
 613
 614     delete[] wxBuffer;
 615     wxBuffer = NULL;
 616
 617     //// WINDOWS-SPECIFIC CLEANUP
 618
 619 #ifndef __WXMICROWIN__
 620     wxSetKeyboardHook(FALSE);
 621 #endif
 622
 623 #if wxUSE_PENWINDOWS
 624     wxCleanUpPenWin();
 625 #endif
 626
 627     if (wxSTD_FRAME_ICON)
 628         DestroyIcon(wxSTD_FRAME_ICON);
 629     if (wxSTD_MDICHILDFRAME_ICON)
 630         DestroyIcon(wxSTD_MDICHILDFRAME_ICON);
 631     if (wxSTD_MDIPARENTFRAME_ICON)
 632         DestroyIcon(wxSTD_MDIPARENTFRAME_ICON);
 633
 634     if (wxDEFAULT_FRAME_ICON)
 635         DestroyIcon(wxDEFAULT_FRAME_ICON);
 636     if (wxDEFAULT_MDICHILDFRAME_ICON)
 637         DestroyIcon(wxDEFAULT_MDICHILDFRAME_ICON);
 638     if (wxDEFAULT_MDIPARENTFRAME_ICON)
 639         DestroyIcon(wxDEFAULT_MDIPARENTFRAME_ICON);
 640
 641     if ( wxDisableButtonBrush )
 642         ::DeleteObject( wxDisableButtonBrush );
 643
 644 #if wxUSE_OLE
 645     ::OleUninitialize();
 646 #endif
 647
 648 #ifdef WXMAKINGDLL
 649     // for an EXE the classes are unregistered when it terminates but DLL may
 650     // be loaded several times (load/unload/load) into the same process in
 651     // which case the registration will fail after the first time if we don't
 652     // unregister the classes now
 653     UnregisterWindowClasses();
 654 #endif // WXMAKINGDLL
 655
 656 #if wxUSE_CTL3D
 657     Ctl3dUnregister(wxhInstance);
 658 #endif
 659
 660     delete wxWinHandleHash;
 661
 662     // GL: I'm annoyed ... I don't know where to put this and I don't want to
 663     // create a module for that as it's part of the core.
 664     delete wxPendingEvents;
 665
 666 #if wxUSE_THREADS
 667     delete wxPendingEventsLocker;
 668     // If we don't do the following, we get an apparent memory leak
 669 #if wxUSE_VALIDATORS
 670     ((wxEvtHandler&) wxDefaultValidator).ClearEventLocker();
 671 #endif // wxUSE_VALIDATORS
 672 #endif // wxUSE_THREADS
 673
 674     wxClassInfo::CleanUpClasses();
 675
 676     delete wxTheApp;
 677     wxTheApp = NULL;
 678
 679 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 680     // At this point we want to check if there are any memory
 681     // blocks that aren't part of the wxDebugContext itself,
 682     // as a special case. Then when dumping we need to ignore
 683     // wxDebugContext, too.
 684     if (wxDebugContext::CountObjectsLeft(TRUE) > 0)
 685     {
 686         wxLogMessage(wxT("There were memory leaks."));
 687         wxDebugContext::Dump();
 688         wxDebugContext::PrintStatistics();
 689     }
 690     //  wxDebugContext::SetStream(NULL, NULL);
 691 #endif
 692
 693 #if wxUSE_LOG
 694     // do it as the very last thing because everything else can log messages
 695     delete wxLog::SetActiveTarget(NULL);
 696 #endif // wxUSE_LOG
 697 }
 698
 699 //----------------------------------------------------------------------
 700 // Entry point helpers, used by wxPython
 701 //----------------------------------------------------------------------
 702
 703 int WXDLLEXPORT wxEntryStart( int WXUNUSED(argc), char** WXUNUSED(argv) )
 704 {
 705     return wxApp::Initialize();
 706 }
 707
 708 int WXDLLEXPORT wxEntryInitGui()
 709 {
 710     return wxTheApp->OnInitGui();
 711 }
 712
 713 void WXDLLEXPORT wxEntryCleanup()
 714 {
 715     wxApp::CleanUp();
 716 }
 717
 718
 719 #if !defined(_WINDLL) || (defined(_WINDLL) && defined(WXMAKINGDLL))
 720
 721 // temporarily disable this warning which would be generated in release builds
 722 // because of __try
 723 #ifdef __VISUALC__
 724     #pragma warning(disable: 4715) // not all control paths return a value
 725 #endif // Visual C++
 726
 727 //----------------------------------------------------------------------
 728 // Main wxWindows entry point
 729 //----------------------------------------------------------------------
 730 int wxEntry(WXHINSTANCE hInstance,
 731             WXHINSTANCE WXUNUSED(hPrevInstance),
 732             char *lpCmdLine,
 733             int nCmdShow,
 734             bool enterLoop)
 735 {
 736     // do check for memory leaks on program exit
 737     // (another useful flag is _CRTDBG_DELAY_FREE_MEM_DF which doesn't free
 738     //  deallocated memory which may be used to simulate low-memory condition)
 739 #ifndef __WXMICROWIN__
 740     wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
 741 #endif
 742
 743 #ifdef __MWERKS__
 744 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 745     // This seems to be necessary since there are 'rogue'
 746     // objects present at this point (perhaps global objects?)
 747     // Setting a checkpoint will ignore them as far as the
 748     // memory checking facility is concerned.
 749     // Of course you may argue that memory allocated in globals should be
 750     // checked, but this is a reasonable compromise.
 751     wxDebugContext::SetCheckpoint();
 752 #endif
 753 #endif
 754
 755     // take everything into a try-except block to be able to call
 756     // OnFatalException() if necessary
 757 #if wxUSE_ON_FATAL_EXCEPTION
 758     __try {
 759 #endif
 760         wxhInstance = (HINSTANCE) hInstance;
 761
 762         if (!wxEntryStart(0,0))
 763             return 0;
 764
 765         // create the application object or ensure that one already exists
 766         if (!wxTheApp)
 767         {
 768             // The app may have declared a global application object, but we recommend
 769             // the IMPLEMENT_APP macro is used instead, which sets an initializer
 770             // function for delayed, dynamic app object construction.
 771             wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
 772                          wxT("No initializer - use IMPLEMENT_APP macro.") );
 773
 774             wxTheApp = (wxApp*) (*wxApp::GetInitializerFunction()) ();
 775         }
 776
 777         wxCHECK_MSG( wxTheApp, 0, wxT("You have to define an instance of wxApp!") );
 778
 779         // save the WinMain() parameters
 780         wxTheApp->ConvertToStandardCommandArgs(lpCmdLine);
 781         wxTheApp->m_nCmdShow = nCmdShow;
 782
 783         // We really don't want timestamps by default, because it means
 784         // we can't simply double-click on the error message and get to that
 785         // line in the source. So VC++ at least, let's have a sensible default.
 786 #ifdef __VISUALC__
 787         wxLog::SetTimestamp(NULL);
 788 #endif
 789
 790         int retValue = 0;
 791
 792         // it is common to create a modal dialog in OnInit() (to ask/notify the
 793         // user about something) but it wouldn't work if we don't change the
 794         // "exit on delete last frame" flag here as when this dialog is
 795         // deleted, the app would terminate (it was the last top level window
 796         // as the main frame wasn't created yet!), so disable this behaviour
 797         // temproarily
 798         bool exitOnLastFrameDelete = wxTheApp->GetExitOnFrameDelete();
 799         wxTheApp->SetExitOnFrameDelete(FALSE);
 800
 801         // init the app
 802         retValue = wxEntryInitGui() && wxTheApp->OnInit() ? 0 : -1;
 803
 804         // restore the old flag value
 805         wxTheApp->SetExitOnFrameDelete(exitOnLastFrameDelete);
 806
 807         if ( retValue == 0 )
 808         {
 809             if ( enterLoop )
 810             {
 811                 // run the main loop
 812                 retValue = wxTheApp->OnRun();
 813             }
 814             else
 815             {
 816                 // we want to initialize, but not run or exit immediately.
 817                 return 1;
 818             }
 819         }
 820         //else: app initialization failed, so we skipped OnRun()
 821
 822         wxWindow *topWindow = wxTheApp->GetTopWindow();
 823         if ( topWindow )
 824         {
 825             // Forcibly delete the window.
 826             if ( topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
 827                     topWindow->IsKindOf(CLASSINFO(wxDialog)) )
 828             {
 829                 topWindow->Close(TRUE);
 830                 wxTheApp->DeletePendingObjects();
 831             }
 832             else
 833             {
 834                 delete topWindow;
 835                 wxTheApp->SetTopWindow(NULL);
 836             }
 837         }
 838
 839         wxTheApp->OnExit();
 840
 841         wxEntryCleanup();
 842
 843         return retValue;
 844
 845 #if wxUSE_ON_FATAL_EXCEPTION
 846     }
 847     __except ( gs_handleExceptions ? EXCEPTION_EXECUTE_HANDLER
 848                                    : EXCEPTION_CONTINUE_SEARCH ) {
 849         if ( wxTheApp )
 850         {
 851            // give the user a chance to do something special about this
 852            wxTheApp->OnFatalException();
 853         }
 854
 855         ::ExitProcess(3); // the same exit code as abort()
 856
 857         // NOTREACHED
 858     }
 859 #endif // wxUSE_ON_FATAL_EXCEPTION
 860 }
 861
 862 // restore warning state
 863 #ifdef __VISUALC__
 864     #pragma warning(default: 4715) // not all control paths return a value
 865 #endif // Visual C++
 866
 867 #else /*  _WINDLL  */
 868
 869 //----------------------------------------------------------------------
 870 // Entry point for wxWindows + the App in a DLL
 871 //----------------------------------------------------------------------
 872
 873 int wxEntry(WXHINSTANCE hInstance)
 874 {
 875     wxhInstance = (HINSTANCE) hInstance;
 876     wxEntryStart(0, 0);
 877
 878     // The app may have declared a global application object, but we recommend
 879     // the IMPLEMENT_APP macro is used instead, which sets an initializer function
 880     // for delayed, dynamic app object construction.
 881     if (!wxTheApp)
 882     {
 883         wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
 884                      "No initializer - use IMPLEMENT_APP macro." );
 885
 886         wxTheApp = (* wxApp::GetInitializerFunction()) ();
 887     }
 888
 889     wxCHECK_MSG( wxTheApp, 0, "You have to define an instance of wxApp!" );
 890
 891     wxTheApp->argc = 0;
 892     wxTheApp->argv = NULL;
 893
 894     wxEntryInitGui();
 895
 896     wxTheApp->OnInit();
 897
 898     wxWindow *topWindow = wxTheApp->GetTopWindow();
 899     if ( topWindow && topWindow->GetHWND())
 900     {
 901         topWindow->Show(TRUE);
 902     }
 903
 904     return 1;
 905 }
 906 #endif // _WINDLL
 907
 908 //// Static member initialization
 909
 910 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 911
 912 wxApp::wxApp()
 913 {
 914     argc = 0;
 915     argv = NULL;
 916     m_printMode = wxPRINT_WINDOWS;
 917     m_auto3D = TRUE;
 918 }
 919
 920 wxApp::~wxApp()
 921 {
 922     // Delete command-line args
 923     int i;
 924     for (i = 0; i < argc; i++)
 925     {
 926         delete[] argv[i];
 927     }
 928     delete[] argv;
 929 }
 930
 931 bool wxApp::Initialized()
 932 {
 933 #ifndef _WINDLL
 934     if (GetTopWindow())
 935         return TRUE;
 936     else
 937         return FALSE;
 938 #else // Assume initialized if DLL (no way of telling)
 939     return TRUE;
 940 #endif
 941 }
 942
 943 /*
 944  * Get and process a message, returning FALSE if WM_QUIT
 945  * received (and also set the flag telling the app to exit the main loop)
 946  *
 947  */
 948 bool wxApp::DoMessage()
 949 {
 950     BOOL rc = ::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0);
 951     if ( rc == 0 )
 952     {
 953         // got WM_QUIT
 954         m_keepGoing = FALSE;
 955
 956         return FALSE;
 957     }
 958     else if ( rc == -1 )
 959     {
 960         // should never happen, but let's test for it nevertheless
 961         wxLogLastError(wxT("GetMessage"));
 962     }
 963     else
 964     {
 965 #if wxUSE_THREADS
 966         wxASSERT_MSG( wxThread::IsMain(),
 967                       wxT("only the main thread can process Windows messages") );
 968
 969         static bool s_hadGuiLock = TRUE;
 970         static wxMsgArray s_aSavedMessages;
 971
 972         // if a secondary thread owns is doing GUI calls, save all messages for
 973         // later processing - we can't process them right now because it will
 974         // lead to recursive library calls (and we're not reentrant)
 975         if ( !wxGuiOwnedByMainThread() )
 976         {
 977             s_hadGuiLock = FALSE;
 978
 979             // leave out WM_COMMAND messages: too dangerous, sometimes
 980             // the message will be processed twice
 981             if ( !wxIsWaitingForThread() ||
 982                     s_currentMsg.message != WM_COMMAND )
 983             {
 984                 s_aSavedMessages.Add(s_currentMsg);
 985             }
 986
 987             return TRUE;
 988         }
 989         else
 990         {
 991             // have we just regained the GUI lock? if so, post all of the saved
 992             // messages
 993             //
 994             // FIXME of course, it's not _exactly_ the same as processing the
 995             //       messages normally - expect some things to break...
 996             if ( !s_hadGuiLock )
 997             {
 998                 s_hadGuiLock = TRUE;
 999
1000                 size_t count = s_aSavedMessages.Count();
1001                 for ( size_t n = 0; n < count; n++ )
1002                 {
1003                     MSG& msg = s_aSavedMessages[n];
1004
1005                     if ( !ProcessMessage((WXMSG *)&msg) )
1006                     {
1007                         ::TranslateMessage(&msg);
1008                         ::DispatchMessage(&msg);
1009                     }
1010                 }
1011
1012                 s_aSavedMessages.Empty();
1013             }
1014         }
1015 #endif // wxUSE_THREADS
1016
1017         // Process the message
1018         DoMessage((WXMSG *)&s_currentMsg);
1019     }
1020
1021     return TRUE;
1022 }
1023
1024 void wxApp::DoMessage(WXMSG *pMsg)
1025 {
1026     if ( !ProcessMessage(pMsg) )
1027     {
1028         ::TranslateMessage((MSG *)pMsg);
1029         ::DispatchMessage((MSG *)pMsg);
1030     }
1031 }
1032
1033 /*
1034  * Keep trying to process messages until WM_QUIT
1035  * received.
1036  *
1037  * If there are messages to be processed, they will all be
1038  * processed and OnIdle will not be called.
1039  * When there are no more messages, OnIdle is called.
1040  * If OnIdle requests more time,
1041  * it will be repeatedly called so long as there are no pending messages.
1042  * A 'feature' of this is that once OnIdle has decided that no more processing
1043  * is required, then it won't get processing time until further messages
1044  * are processed (it'll sit in DoMessage).
1045  */
1046
1047 int wxApp::MainLoop()
1048 {
1049     m_keepGoing = TRUE;
1050
1051     while ( m_keepGoing )
1052     {
1053 #if wxUSE_THREADS
1054         wxMutexGuiLeaveOrEnter();
1055 #endif // wxUSE_THREADS
1056
1057         while ( !Pending() && ProcessIdle() )
1058             ;
1059
1060         // a message came or no more idle processing to do
1061         DoMessage();
1062     }
1063
1064     return s_currentMsg.wParam;
1065 }
1066
1067 // Returns TRUE if more time is needed.
1068 bool wxApp::ProcessIdle()
1069 {
1070     wxIdleEvent event;
1071     event.SetEventObject(this);
1072     ProcessEvent(event);
1073
1074     return event.MoreRequested();
1075 }
1076
1077 void wxApp::ExitMainLoop()
1078 {
1079     // VZ: why not ::PostQuitMessage()?
1080     m_keepGoing = FALSE;
1081 }
1082
1083 bool wxApp::Pending()
1084 {
1085     return ::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0;
1086 }
1087
1088 void wxApp::Dispatch()
1089 {
1090     DoMessage();
1091 }
1092
1093 /*
1094  * Give all windows a chance to preprocess
1095  * the message. Some may have accelerator tables, or have
1096  * MDI complications.
1097  */
1098
1099 bool wxApp::ProcessMessage(WXMSG *wxmsg)
1100 {
1101     MSG *msg = (MSG *)wxmsg;
1102     HWND hwnd = msg->hwnd;
1103     wxWindow *wndThis = wxGetWindowFromHWND((WXHWND)hwnd);
1104
1105     // this may happen if the event occured in a standard modeless dialog (the
1106     // only example of which I know of is the find/replace dialog) - then call
1107     // IsDialogMessage() to make TAB navigation in it work
1108     if ( !wndThis )
1109     {
1110         // we need to find the dialog containing this control as
1111         // IsDialogMessage() just eats all the messages (i.e. returns TRUE for
1112         // them) if we call it for the control itself
1113         while ( hwnd && ::GetWindowLong(hwnd, GWL_STYLE) & WS_CHILD )
1114         {
1115             hwnd = ::GetParent(hwnd);
1116         }
1117
1118         return hwnd && ::IsDialogMessage(hwnd, msg) != 0;
1119     }
1120
1121 #if wxUSE_TOOLTIPS
1122     // we must relay WM_MOUSEMOVE events to the tooltip ctrl if we want it to
1123     // popup the tooltip bubbles
1124     if ( (msg->message == WM_MOUSEMOVE) )
1125     {
1126         wxToolTip *tt = wndThis->GetToolTip();
1127         if ( tt )
1128         {
1129             tt->RelayEvent(wxmsg);
1130         }
1131     }
1132 #endif // wxUSE_TOOLTIPS
1133
1134     // allow the window to prevent certain messages from being
1135     // translated/processed (this is currently used by wxTextCtrl to always
1136     // grab Ctrl-C/V/X, even if they are also accelerators in some parent)
1137     if ( !wndThis->MSWShouldPreProcessMessage(wxmsg) )
1138     {
1139         return FALSE;
1140     }
1141
1142     // try translations first: the accelerators override everything
1143     wxWindow *wnd;
1144
1145     for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
1146     {
1147         if ( wnd->MSWTranslateMessage(wxmsg))
1148             return TRUE;
1149
1150         // stop at first top level window, i.e. don't try to process the key
1151         // strokes originating in a dialog using the accelerators of the parent
1152         // frame - this doesn't make much sense
1153         if ( wnd->IsTopLevel() )
1154             break;
1155     }
1156
1157     // now try the other hooks (kbd navigation is handled here): we start from
1158     // wndThis->GetParent() because wndThis->MSWProcessMessage() was already
1159     // called above
1160     for ( wnd = wndThis->GetParent(); wnd; wnd = wnd->GetParent() )
1161     {
1162         if ( wnd->MSWProcessMessage(wxmsg) )
1163             return TRUE;
1164     }
1165
1166     // no special preprocessing for this message, dispatch it normally
1167     return FALSE;
1168 }
1169
1170 void wxApp::OnIdle(wxIdleEvent& event)
1171 {
1172     static bool s_inOnIdle = FALSE;
1173
1174     // Avoid recursion (via ProcessEvent default case)
1175     if ( s_inOnIdle )
1176         return;
1177
1178     s_inOnIdle = TRUE;
1179
1180     // If there are pending events, we must process them: pending events
1181     // are either events to the threads other than main or events posted
1182     // with wxPostEvent() functions
1183     // GRG: I have moved this here so that all pending events are processed
1184     //   before starting to delete any objects. This behaves better (in
1185     //   particular, wrt wxPostEvent) and is coherent with wxGTK's current
1186     //   behaviour. Changed Feb/2000 before 2.1.14
1187     ProcessPendingEvents();
1188
1189     // 'Garbage' collection of windows deleted with Close().
1190     DeletePendingObjects();
1191
1192 #if wxUSE_LOG
1193     // flush the logged messages if any
1194     wxLog::FlushActive();
1195 #endif // wxUSE_LOG
1196
1197 #if wxUSE_DC_CACHEING
1198     // automated DC cache management: clear the cached DCs and bitmap
1199     // if it's likely that the app has finished with them, that is, we
1200     // get an idle event and we're not dragging anything.
1201     if (!::GetKeyState(MK_LBUTTON) && !::GetKeyState(MK_MBUTTON) && !::GetKeyState(MK_RBUTTON))
1202         wxDC::ClearCache();
1203 #endif // wxUSE_DC_CACHEING
1204
1205     // Send OnIdle events to all windows
1206     if ( SendIdleEvents() )
1207     {
1208         // SendIdleEvents() returns TRUE if at least one window requested more
1209         // idle events
1210         event.RequestMore(TRUE);
1211     }
1212
1213     s_inOnIdle = FALSE;
1214 }
1215
1216 // Send idle event to all top-level windows
1217 bool wxApp::SendIdleEvents()
1218 {
1219     bool needMore = FALSE;
1220
1221     wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
1222     while (node)
1223     {
1224         wxWindow* win = node->GetData();
1225         if (SendIdleEvents(win))
1226             needMore = TRUE;
1227         node = node->GetNext();
1228     }
1229
1230     return needMore;
1231 }
1232
1233 // Send idle event to window and all subwindows
1234 bool wxApp::SendIdleEvents(wxWindow* win)
1235 {
1236     bool needMore = FALSE;
1237
1238     wxIdleEvent event;
1239     event.SetEventObject(win);
1240     win->GetEventHandler()->ProcessEvent(event);
1241
1242     if (event.MoreRequested())
1243         needMore = TRUE;
1244
1245     wxNode* node = win->GetChildren().First();
1246     while (node)
1247     {
1248         wxWindow* win = (wxWindow*) node->Data();
1249         if (SendIdleEvents(win))
1250             needMore = TRUE;
1251
1252         node = node->Next();
1253     }
1254     return needMore;
1255 }
1256
1257 void wxApp::DeletePendingObjects()
1258 {
1259     wxNode *node = wxPendingDelete.First();
1260     while (node)
1261     {
1262         wxObject *obj = (wxObject *)node->Data();
1263
1264         delete obj;
1265
1266         if (wxPendingDelete.Member(obj))
1267             delete node;
1268
1269         // Deleting one object may have deleted other pending
1270         // objects, so start from beginning of list again.
1271         node = wxPendingDelete.First();
1272     }
1273 }
1274
1275 void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
1276 {
1277     if (GetTopWindow())
1278         GetTopWindow()->Close(TRUE);
1279 }
1280
1281 // Default behaviour: close the application with prompts. The
1282 // user can veto the close, and therefore the end session.
1283 void wxApp::OnQueryEndSession(wxCloseEvent& event)
1284 {
1285     if (GetTopWindow())
1286     {
1287         if (!GetTopWindow()->Close(!event.CanVeto()))
1288             event.Veto(TRUE);
1289     }
1290 }
1291
1292 /* static */
1293 int wxApp::GetComCtl32Version()
1294 {
1295 #ifdef __WXMICROWIN__
1296     return 0;
1297 #else
1298     // cache the result
1299     static int s_verComCtl32 = -1;
1300
1301     wxCRIT_SECT_DECLARE(csComCtl32);
1302     wxCRIT_SECT_LOCKER(lock, csComCtl32);
1303
1304     if ( s_verComCtl32 == -1 )
1305     {
1306         // initally assume no comctl32.dll at all
1307         s_verComCtl32 = 0;
1308
1309         // do we have it?
1310         HMODULE hModuleComCtl32 = ::GetModuleHandle(wxT("COMCTL32"));
1311
1312         // if so, then we can check for the version
1313         if ( hModuleComCtl32 )
1314         {
1315             // try to use DllGetVersion() if available in _headers_
1316             #ifdef DLLVER_PLATFORM_WINDOWS // defined in shlwapi.h
1317                 DLLGETVERSIONPROC pfnDllGetVersion = (DLLGETVERSIONPROC)
1318                     ::GetProcAddress(hModuleComCtl32, "DllGetVersion");
1319                 if ( pfnDllGetVersion )
1320                 {
1321                     DLLVERSIONINFO dvi;
1322                     dvi.cbSize = sizeof(dvi);
1323
1324                     HRESULT hr = (*pfnDllGetVersion)(&dvi);
1325                     if ( FAILED(hr) )
1326                     {
1327                         wxLogApiError(_T("DllGetVersion"), hr);
1328                     }
1329                     else
1330                     {
1331                         // this is incompatible with _WIN32_IE values, but
1332                         // compatible with the other values returned by
1333                         // GetComCtl32Version()
1334                         s_verComCtl32 = 100*dvi.dwMajorVersion +
1335                                             dvi.dwMinorVersion;
1336                     }
1337                 }
1338             #endif
1339                 // DllGetVersion() unavailable either during compile or
1340                 // run-time, try to guess the version otherwise
1341                 if ( !s_verComCtl32 )
1342                 {
1343                     // InitCommonControlsEx is unique to 4.70 and later
1344                     FARPROC theProc = ::GetProcAddress
1345                                         (
1346                                          hModuleComCtl32,
1347                                          "InitCommonControlsEx"
1348                                         );
1349
1350                     if ( !theProc )
1351                     {
1352                         // not found, must be 4.00
1353                         s_verComCtl32 = 400;
1354                     }
1355                     else
1356                     {
1357                         // many symbols appeared in comctl32 4.71, could use
1358                         // any of them except may be DllInstall
1359                         theProc = ::GetProcAddress
1360                                     (
1361                                      hModuleComCtl32,
1362                                      "InitializeFlatSB"
1363                                     );
1364                         if ( !theProc )
1365                         {
1366                             // not found, must be 4.70
1367                             s_verComCtl32 = 470;
1368                         }
1369                         else
1370                         {
1371                             // found, must be 4.71
1372                             s_verComCtl32 = 471;
1373                         }
1374                     }
1375                 }
1376         }
1377     }
1378
1379     return s_verComCtl32;
1380 #endif
1381 }
1382
1383 void wxExit()
1384 {
1385     wxLogError(_("Fatal error: exiting"));
1386
1387     wxApp::CleanUp();
1388     exit(0);
1389 }
1390
1391 // Yield to incoming messages
1392
1393 bool wxApp::Yield(bool onlyIfNeeded)
1394 {
1395     // MT-FIXME
1396     static bool s_inYield = FALSE;
1397
1398     // disable log flushing from here because a call to wxYield() shouldn't
1399     // normally result in message boxes popping up &c
1400     wxLog::Suspend();
1401
1402     if ( s_inYield )
1403     {
1404         if ( !onlyIfNeeded )
1405         {
1406             wxFAIL_MSG( wxT("wxYield called recursively" ) );
1407         }
1408
1409         return FALSE;
1410     }
1411
1412     s_inYield = TRUE;
1413
1414     // we don't want to process WM_QUIT from here - it should be processed in
1415     // the main event loop in order to stop it
1416     MSG msg;
1417     while ( PeekMessage(&msg, (HWND)0, 0, 0, PM_NOREMOVE) &&
1418             msg.message != WM_QUIT )
1419     {
1420 #if wxUSE_THREADS
1421         wxMutexGuiLeaveOrEnter();
1422 #endif // wxUSE_THREADS
1423
1424         if ( !wxTheApp->DoMessage() )
1425             break;
1426     }
1427
1428     // if there are pending events, we must process them.
1429     ProcessPendingEvents();
1430
1431     // let the logs be flashed again
1432     wxLog::Resume();
1433
1434     s_inYield = FALSE;
1435
1436     return TRUE;
1437 }
1438
1439 bool wxHandleFatalExceptions(bool doit)
1440 {
1441 #if wxUSE_ON_FATAL_EXCEPTION
1442     // assume this can only be called from the main thread
1443     gs_handleExceptions = doit;
1444
1445     return TRUE;
1446 #else
1447     wxFAIL_MSG(_T("set wxUSE_ON_FATAL_EXCEPTION to 1 to use this function"));
1448
1449     (void)doit;
1450     return FALSE;
1451 #endif
1452 }
1453
1454 //-----------------------------------------------------------------------------
1455 // wxWakeUpIdle
1456 //-----------------------------------------------------------------------------
1457
1458 void wxWakeUpIdle()
1459 {
1460     // Send the top window a dummy message so idle handler processing will
1461     // start up again.  Doing it this way ensures that the idle handler
1462     // wakes up in the right thread (see also wxWakeUpMainThread() which does
1463     // the same for the main app thread only)
1464     wxWindow *topWindow = wxTheApp->GetTopWindow();
1465     if ( topWindow )
1466     {
1467         if ( !::PostMessage(GetHwndOf(topWindow), WM_NULL, 0, 0) )
1468         {
1469             // should never happen
1470             wxLogLastError(wxT("PostMessage(WM_NULL)"));
1471         }
1472     }
1473 }
1474
1475 //-----------------------------------------------------------------------------
1476
1477 wxIcon
1478 wxApp::GetStdIcon(int which) const
1479 {
1480     switch(which)
1481     {
1482         case wxICON_INFORMATION:
1483             return wxIcon("wxICON_INFO");
1484
1485         case wxICON_QUESTION:
1486             return wxIcon("wxICON_QUESTION");
1487
1488         case wxICON_EXCLAMATION:
1489             return wxIcon("wxICON_WARNING");
1490
1491         default:
1492             wxFAIL_MSG(wxT("requested non existent standard icon"));
1493             // still fall through
1494
1495         case wxICON_HAND:
1496             return wxIcon("wxICON_ERROR");
1497     }
1498 }
1499
1500 // For some reason, with MSVC++ 1.5, WinMain isn't linked in properly
1501 // if in a separate file. So include it here to ensure it's linked.
1502 #if (defined(__VISUALC__) && !defined(__WIN32__)) || (defined(__GNUWIN32__) && !defined(__TWIN32__) && !defined(WXMAKINGDLL))
1503 #include "main.cpp"
1504 #endif