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