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
   9 // Licence:     wxWindows licence
  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_TOOLTIPS
  69     #include "wx/tooltip.h"
  70 #endif // wxUSE_TOOLTIPS
  71
  72 // OLE is used for drag-and-drop, clipboard, OLE Automation..., but some
  73 // compilers don't support it (missing headers, libs, ...)
  74 #if defined(__GNUWIN32_OLD__) || defined(__SC__) || defined(__SALFORDC__)
  75     #undef wxUSE_OLE
  76
  77     #define  wxUSE_OLE 0
  78 #endif // broken compilers
  79
  80 #if wxUSE_OLE
  81     #include <ole2.h>
  82 #endif
  83
  84 #include <string.h>
  85 #include <ctype.h>
  86
  87 #if defined(__WIN95__) && !((defined(__GNUWIN32_OLD__) || defined(__TWIN32__) || defined(__WXMICROWIN__)) && !defined(__CYGWIN10__))
  88     #include <commctrl.h>
  89 #endif
  90
  91 #ifndef __WXMICROWIN__
  92 #include "wx/msw/msvcrt.h"
  93 #endif
  94
  95 // ----------------------------------------------------------------------------
  96 // conditional compilation
  97 // ----------------------------------------------------------------------------
  98
  99 // The macro _WIN32_IE is defined by commctrl.h (unless it had already been
 100 // defined before) and shows us what common control features are available
 101 // during the compile time (it doesn't mean that they will be available during
 102 // the run-time, use GetComCtl32Version() to test for them!). The possible
 103 // values are:
 104 //
 105 // 0x0200     for comctl32.dll 4.00 shipped with Win95/NT 4.0
 106 // 0x0300                      4.70              IE 3.x
 107 // 0x0400                      4.71              IE 4.0
 108 // 0x0401                      4.72              IE 4.01 and Win98
 109 // 0x0500                      5.00              IE 5.x and NT 5.0 (Win2000)
 110
 111 #ifndef _WIN32_IE
 112     // minimal set of features by default
 113     #define _WIN32_IE 0x0200
 114 #endif
 115
 116 #if _WIN32_IE >= 0x0300 && \
 117     (!defined(__MINGW32__) || wxCHECK_W32API_VERSION( 2, 0 )) && \
 118     !defined(__CYGWIN__)
 119     #include <shlwapi.h>
 120 #endif
 121
 122 // ---------------------------------------------------------------------------
 123 // global variables
 124 // ---------------------------------------------------------------------------
 125
 126 extern wxChar *wxBuffer;
 127 extern wxList WXDLLEXPORT wxPendingDelete;
 128 #ifndef __WXMICROWIN__
 129 extern void wxSetKeyboardHook(bool doIt);
 130 #endif
 131
 132 MSG s_currentMsg;
 133 wxApp *wxTheApp = NULL;
 134
 135 // NB: all "NoRedraw" classes must have the same names as the "normal" classes
 136 //     with NR suffix - wxWindow::MSWCreate() supposes this
 137 const wxChar *wxCanvasClassName        = wxT("wxWindowClass");
 138 const wxChar *wxCanvasClassNameNR      = wxT("wxWindowClassNR");
 139 const wxChar *wxMDIFrameClassName      = wxT("wxMDIFrameClass");
 140 const wxChar *wxMDIFrameClassNameNoRedraw = wxT("wxMDIFrameClassNR");
 141 const wxChar *wxMDIChildFrameClassName = wxT("wxMDIChildFrameClass");
 142 const wxChar *wxMDIChildFrameClassNameNoRedraw = wxT("wxMDIChildFrameClassNR");
 143
 144 HICON wxSTD_FRAME_ICON = (HICON) NULL;
 145 HICON wxSTD_MDICHILDFRAME_ICON = (HICON) NULL;
 146 HICON wxSTD_MDIPARENTFRAME_ICON = (HICON) NULL;
 147
 148 HICON wxDEFAULT_FRAME_ICON = (HICON) NULL;
 149 HICON wxDEFAULT_MDICHILDFRAME_ICON = (HICON) NULL;
 150 HICON wxDEFAULT_MDIPARENTFRAME_ICON = (HICON) NULL;
 151
 152 HBRUSH wxDisableButtonBrush = (HBRUSH) 0;
 153
 154 LRESULT WXDLLEXPORT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM);
 155
 156 // FIXME wxUSE_ON_FATAL_EXCEPTION is only supported for VC++ now because it
 157 //       needs compiler support for Win32 SEH. Others (especially Borland)
 158 //       probably have it too, but I'm not sure about how it works
 159 // JACS: get 'Cannot use __try in functions that require unwinding
 160 // in Unicode mode, so disabling.
 161 #if !defined(__VISUALC__) || defined(__WIN16__) || defined(UNICODE)
 162     #undef wxUSE_ON_FATAL_EXCEPTION
 163     #define wxUSE_ON_FATAL_EXCEPTION 0
 164 #endif // VC++
 165
 166 #if wxUSE_ON_FATAL_EXCEPTION
 167     static bool gs_handleExceptions = FALSE;
 168 #endif
 169
 170 // ===========================================================================
 171 // implementation
 172 // ===========================================================================
 173
 174 // ---------------------------------------------------------------------------
 175 // wxApp
 176 // ---------------------------------------------------------------------------
 177
 178 IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 179
 180 BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 181     EVT_IDLE(wxApp::OnIdle)
 182     EVT_END_SESSION(wxApp::OnEndSession)
 183     EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 184 END_EVENT_TABLE()
 185
 186 //// Initialize
 187 bool wxApp::Initialize()
 188 {
 189     // the first thing to do is to check if we're trying to run an Unicode
 190     // program under Win9x w/o MSLU emulation layer - if so, abort right now
 191     // as it has no chance to work
 192 #if wxUSE_UNICODE && !wxUSE_UNICODE_MSLU
 193     if ( wxGetOsVersion() != wxWINDOWS_NT )
 194     {
 195         // note that we can use MessageBoxW() as it's implemented even under
 196         // Win9x - OTOH, we can't use wxGetTranslation() because the file APIs
 197         // used by wxLocale are not
 198         ::MessageBox
 199         (
 200          NULL,
 201          _T("This program uses Unicode and requires Windows NT/2000/XP.\nProgram aborted."),
 202          _T("wxWindows Fatal Error"),
 203          MB_ICONERROR | MB_OK
 204         );
 205
 206         return FALSE;
 207     }
 208 #endif // wxUSE_UNICODE && !wxUSE_UNICODE_MSLU
 209
 210     wxBuffer = new wxChar[1500]; // FIXME
 211
 212     wxClassInfo::InitializeClasses();
 213
 214 #if wxUSE_THREADS
 215     wxPendingEventsLocker = new wxCriticalSection;
 216 #endif
 217
 218     wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
 219     wxTheColourDatabase->Initialize();
 220
 221     wxInitializeStockLists();
 222     wxInitializeStockObjects();
 223
 224     wxBitmap::InitStandardHandlers();
 225
 226 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 227     InitCommonControls();
 228 #endif // __WIN95__
 229
 230 #if wxUSE_OLE || wxUSE_DRAG_AND_DROP
 231
 232 #ifdef __WIN16__
 233     // for OLE, enlarge message queue to be as large as possible
 234     int iMsg = 96;
 235     while (!SetMessageQueue(iMsg) && (iMsg -= 8))
 236         ;
 237 #endif // Win16
 238
 239 #if wxUSE_OLE
 240     // we need to initialize OLE library
 241     if ( FAILED(::OleInitialize(NULL)) )
 242         wxLogError(_("Cannot initialize OLE"));
 243 #endif
 244
 245 #endif // wxUSE_OLE
 246
 247 #if wxUSE_CTL3D
 248     if (!Ctl3dRegister(wxhInstance))
 249         wxLogError(wxT("Cannot register CTL3D"));
 250
 251     Ctl3dAutoSubclass(wxhInstance);
 252 #endif // wxUSE_CTL3D
 253
 254     // VZ: these icons are not in wx.rc anyhow (but should they?)!
 255 #if 0
 256     wxSTD_FRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_FRAME"));
 257     wxSTD_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_MDIPARENTFRAME"));
 258     wxSTD_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_MDICHILDFRAME"));
 259
 260     wxDEFAULT_FRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_FRAME"));
 261     wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_MDIPARENTFRAME"));
 262     wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_MDICHILDFRAME"));
 263 #endif // 0
 264
 265     RegisterWindowClasses();
 266
 267 #ifndef __WXMICROWIN__
 268     // Create the brush for disabling bitmap buttons
 269
 270     LOGBRUSH lb;
 271     lb.lbStyle = BS_PATTERN;
 272     lb.lbColor = 0;
 273     lb.lbHatch = (int)LoadBitmap( wxhInstance, wxT("wxDISABLE_BUTTON_BITMAP") );
 274     if ( lb.lbHatch )
 275     {
 276         wxDisableButtonBrush = ::CreateBrushIndirect( & lb );
 277         ::DeleteObject( (HGDIOBJ)lb.lbHatch );
 278     }
 279     //else: wxWindows resources are probably not linked in
 280 #endif
 281
 282 #if wxUSE_PENWINDOWS
 283     wxRegisterPenWin();
 284 #endif
 285
 286     wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100);
 287
 288     // This is to foil optimizations in Visual C++ that throw out dummy.obj.
 289     // PLEASE DO NOT ALTER THIS.
 290 #if defined(__VISUALC__) && defined(__WIN16__) && !defined(WXMAKINGDLL)
 291     extern char wxDummyChar;
 292     if (wxDummyChar) wxDummyChar++;
 293 #endif
 294
 295 #ifndef __WXMICROWIN__
 296     wxSetKeyboardHook(TRUE);
 297 #endif
 298
 299     wxModule::RegisterModules();
 300     if (!wxModule::InitializeModules())
 301         return FALSE;
 302     return TRUE;
 303 }
 304
 305 // ---------------------------------------------------------------------------
 306 // RegisterWindowClasses
 307 // ---------------------------------------------------------------------------
 308
 309 // TODO we should only register classes really used by the app. For this it
 310 //      would be enough to just delay the class registration until an attempt
 311 //      to create a window of this class is made.
 312 bool wxApp::RegisterWindowClasses()
 313 {
 314     WNDCLASS wndclass;
 315     wxZeroMemory(wndclass);
 316
 317     // for each class we register one with CS_(V|H)REDRAW style and one
 318     // without for windows created with wxNO_FULL_REDRAW_ON_REPAINT flag
 319     static const long styleNormal = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
 320     static const long styleNoRedraw = CS_DBLCLKS;
 321
 322     // the fields which are common to all classes
 323     wndclass.lpfnWndProc   = (WNDPROC)wxWndProc;
 324     wndclass.hInstance     = wxhInstance;
 325     wndclass.hCursor       = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW);
 326
 327     // Register the frame window class.
 328     wndclass.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE + 1);
 329     wndclass.lpszClassName = wxCanvasClassName;
 330     wndclass.style         = styleNormal;
 331
 332     if ( !RegisterClass(&wndclass) )
 333     {
 334         wxLogLastError(wxT("RegisterClass(frame)"));
 335     }
 336
 337     // "no redraw" frame
 338     wndclass.lpszClassName = wxCanvasClassNameNR;
 339     wndclass.style         = styleNoRedraw;
 340
 341     if ( !RegisterClass(&wndclass) )
 342     {
 343         wxLogLastError(wxT("RegisterClass(no redraw frame)"));
 344     }
 345
 346     // Register the MDI frame window class.
 347     wndclass.hbrBackground = (HBRUSH)NULL; // paint MDI frame ourselves
 348     wndclass.lpszClassName = wxMDIFrameClassName;
 349     wndclass.style         = styleNormal;
 350
 351     if ( !RegisterClass(&wndclass) )
 352     {
 353         wxLogLastError(wxT("RegisterClass(MDI parent)"));
 354     }
 355
 356     // "no redraw" MDI frame
 357     wndclass.lpszClassName = wxMDIFrameClassNameNoRedraw;
 358     wndclass.style         = styleNoRedraw;
 359
 360     if ( !RegisterClass(&wndclass) )
 361     {
 362         wxLogLastError(wxT("RegisterClass(no redraw MDI parent frame)"));
 363     }
 364
 365     // Register the MDI child frame window class.
 366     wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
 367     wndclass.lpszClassName = wxMDIChildFrameClassName;
 368     wndclass.style         = styleNormal;
 369
 370     if ( !RegisterClass(&wndclass) )
 371     {
 372         wxLogLastError(wxT("RegisterClass(MDI child)"));
 373     }
 374
 375     // "no redraw" MDI child frame
 376     wndclass.lpszClassName = wxMDIChildFrameClassNameNoRedraw;
 377     wndclass.style         = styleNoRedraw;
 378
 379     if ( !RegisterClass(&wndclass) )
 380     {
 381         wxLogLastError(wxT("RegisterClass(no redraw MDI child)"));
 382     }
 383
 384     return TRUE;
 385 }
 386
 387 // ---------------------------------------------------------------------------
 388 // UnregisterWindowClasses
 389 // ---------------------------------------------------------------------------
 390
 391 bool wxApp::UnregisterWindowClasses()
 392 {
 393     bool retval = TRUE;
 394
 395 #ifndef __WXMICROWIN__
 396     // MDI frame window class.
 397     if ( !::UnregisterClass(wxMDIFrameClassName, wxhInstance) )
 398     {
 399         wxLogLastError(wxT("UnregisterClass(MDI parent)"));
 400
 401         retval = FALSE;
 402     }
 403
 404     // "no redraw" MDI frame
 405     if ( !::UnregisterClass(wxMDIFrameClassNameNoRedraw, wxhInstance) )
 406     {
 407         wxLogLastError(wxT("UnregisterClass(no redraw MDI parent frame)"));
 408
 409         retval = FALSE;
 410     }
 411
 412     // MDI child frame window class.
 413     if ( !::UnregisterClass(wxMDIChildFrameClassName, wxhInstance) )
 414     {
 415         wxLogLastError(wxT("UnregisterClass(MDI child)"));
 416
 417         retval = FALSE;
 418     }
 419
 420     // "no redraw" MDI child frame
 421     if ( !::UnregisterClass(wxMDIChildFrameClassNameNoRedraw, wxhInstance) )
 422     {
 423         wxLogLastError(wxT("UnregisterClass(no redraw MDI child)"));
 424
 425         retval = FALSE;
 426     }
 427
 428     // canvas class name
 429     if ( !::UnregisterClass(wxCanvasClassName, wxhInstance) )
 430     {
 431         wxLogLastError(wxT("UnregisterClass(canvas)"));
 432
 433         retval = FALSE;
 434     }
 435
 436     if ( !::UnregisterClass(wxCanvasClassNameNR, wxhInstance) )
 437     {
 438         wxLogLastError(wxT("UnregisterClass(no redraw canvas)"));
 439
 440         retval = FALSE;
 441     }
 442 #endif // __WXMICROWIN__
 443
 444     return retval;
 445 }
 446
 447 // ---------------------------------------------------------------------------
 448 // Convert Windows to argc, argv style
 449 // ---------------------------------------------------------------------------
 450
 451 void wxApp::ConvertToStandardCommandArgs(const char* lpCmdLine)
 452 {
 453     // break the command line in words
 454     wxArrayString args =
 455         wxCmdLineParser::ConvertStringToArgs(wxConvertMB2WX(lpCmdLine));
 456
 457     // +1 here for the program name
 458     argc = args.GetCount() + 1;
 459
 460     // and +1 here for the terminating NULL
 461     argv = new wxChar *[argc + 1];
 462
 463     argv[0] = new wxChar[260]; // 260 is MAX_PATH value from windef.h
 464     ::GetModuleFileName(wxhInstance, argv[0], 260);
 465
 466     // also set the app name from argv[0]
 467     wxString name;
 468     wxFileName::SplitPath(argv[0], NULL, &name, NULL);
 469
 470     // but don't override the name already set by the user code, if any
 471     if ( GetAppName().empty() )
 472         SetAppName(name);
 473
 474     // copy all the other arguments to wxApp::argv[]
 475     for ( int i = 1; i < argc; i++ )
 476     {
 477         argv[i] = copystring(args[i - 1]);
 478     }
 479
 480     // argv[] must be NULL-terminated
 481     argv[argc] = NULL;
 482 }
 483
 484 //// Cleans up any wxWindows internal structures left lying around
 485
 486 void wxApp::CleanUp()
 487 {
 488     //// COMMON CLEANUP
 489
 490 #if wxUSE_LOG
 491     // flush the logged messages if any and install a 'safer' log target: the
 492     // default one (wxLogGui) can't be used after the resources are freed just
 493     // below and the user suppliedo ne might be even more unsafe (using any
 494     // wxWindows GUI function is unsafe starting from now)
 495     wxLog::DontCreateOnDemand();
 496
 497     // this will flush the old messages if any
 498     delete wxLog::SetActiveTarget(new wxLogStderr);
 499 #endif // wxUSE_LOG
 500
 501     // One last chance for pending objects to be cleaned up
 502     wxTheApp->DeletePendingObjects();
 503
 504     wxModule::CleanUpModules();
 505
 506     wxDeleteStockObjects();
 507
 508     // Destroy all GDI lists, etc.
 509     wxDeleteStockLists();
 510
 511     delete wxTheColourDatabase;
 512     wxTheColourDatabase = NULL;
 513
 514     wxBitmap::CleanUpHandlers();
 515
 516     delete[] wxBuffer;
 517     wxBuffer = NULL;
 518
 519     //// WINDOWS-SPECIFIC CLEANUP
 520
 521 #ifndef __WXMICROWIN__
 522     wxSetKeyboardHook(FALSE);
 523 #endif
 524
 525 #if wxUSE_PENWINDOWS
 526     wxCleanUpPenWin();
 527 #endif
 528
 529     if (wxSTD_FRAME_ICON)
 530         DestroyIcon(wxSTD_FRAME_ICON);
 531     if (wxSTD_MDICHILDFRAME_ICON)
 532         DestroyIcon(wxSTD_MDICHILDFRAME_ICON);
 533     if (wxSTD_MDIPARENTFRAME_ICON)
 534         DestroyIcon(wxSTD_MDIPARENTFRAME_ICON);
 535
 536     if (wxDEFAULT_FRAME_ICON)
 537         DestroyIcon(wxDEFAULT_FRAME_ICON);
 538     if (wxDEFAULT_MDICHILDFRAME_ICON)
 539         DestroyIcon(wxDEFAULT_MDICHILDFRAME_ICON);
 540     if (wxDEFAULT_MDIPARENTFRAME_ICON)
 541         DestroyIcon(wxDEFAULT_MDIPARENTFRAME_ICON);
 542
 543     if ( wxDisableButtonBrush )
 544         ::DeleteObject( wxDisableButtonBrush );
 545
 546 #if wxUSE_OLE
 547     ::OleUninitialize();
 548 #endif
 549
 550 #ifdef WXMAKINGDLL
 551     // for an EXE the classes are unregistered when it terminates but DLL may
 552     // be loaded several times (load/unload/load) into the same process in
 553     // which case the registration will fail after the first time if we don't
 554     // unregister the classes now
 555     UnregisterWindowClasses();
 556 #endif // WXMAKINGDLL
 557
 558 #if wxUSE_CTL3D
 559     Ctl3dUnregister(wxhInstance);
 560 #endif
 561
 562     delete wxWinHandleHash;
 563
 564     // GL: I'm annoyed ... I don't know where to put this and I don't want to
 565     // create a module for that as it's part of the core.
 566     delete wxPendingEvents;
 567
 568 #if wxUSE_THREADS
 569     delete wxPendingEventsLocker;
 570     // If we don't do the following, we get an apparent memory leak
 571 #if wxUSE_VALIDATORS
 572     ((wxEvtHandler&) wxDefaultValidator).ClearEventLocker();
 573 #endif // wxUSE_VALIDATORS
 574 #endif // wxUSE_THREADS
 575
 576     wxClassInfo::CleanUpClasses();
 577
 578     delete wxTheApp;
 579     wxTheApp = NULL;
 580
 581 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 582     // At this point we want to check if there are any memory
 583     // blocks that aren't part of the wxDebugContext itself,
 584     // as a special case. Then when dumping we need to ignore
 585     // wxDebugContext, too.
 586     if (wxDebugContext::CountObjectsLeft(TRUE) > 0)
 587     {
 588         wxLogMessage(wxT("There were memory leaks."));
 589         wxDebugContext::Dump();
 590         wxDebugContext::PrintStatistics();
 591     }
 592     //  wxDebugContext::SetStream(NULL, NULL);
 593 #endif
 594
 595 #if wxUSE_LOG
 596     // do it as the very last thing because everything else can log messages
 597     delete wxLog::SetActiveTarget(NULL);
 598 #endif // wxUSE_LOG
 599 }
 600
 601 //----------------------------------------------------------------------
 602 // Entry point helpers, used by wxPython
 603 //----------------------------------------------------------------------
 604
 605 int WXDLLEXPORT wxEntryStart( int WXUNUSED(argc), char** WXUNUSED(argv) )
 606 {
 607     return wxApp::Initialize();
 608 }
 609
 610 int WXDLLEXPORT wxEntryInitGui()
 611 {
 612     return wxTheApp->OnInitGui();
 613 }
 614
 615 void WXDLLEXPORT wxEntryCleanup()
 616 {
 617     wxApp::CleanUp();
 618 }
 619
 620
 621 #if !defined(_WINDLL) || (defined(_WINDLL) && defined(WXMAKINGDLL))
 622
 623 // temporarily disable this warning which would be generated in release builds
 624 // because of __try
 625 #ifdef __VISUALC__
 626     #pragma warning(disable: 4715) // not all control paths return a value
 627 #endif // Visual C++
 628
 629 //----------------------------------------------------------------------
 630 // Main wxWindows entry point
 631 //----------------------------------------------------------------------
 632 int wxEntry(WXHINSTANCE hInstance,
 633             WXHINSTANCE WXUNUSED(hPrevInstance),
 634             char *lpCmdLine,
 635             int nCmdShow,
 636             bool enterLoop)
 637 {
 638     // do check for memory leaks on program exit
 639     // (another useful flag is _CRTDBG_DELAY_FREE_MEM_DF which doesn't free
 640     //  deallocated memory which may be used to simulate low-memory condition)
 641 #ifndef __WXMICROWIN__
 642     wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
 643 #endif
 644
 645 #ifdef __MWERKS__
 646 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 647     // This seems to be necessary since there are 'rogue'
 648     // objects present at this point (perhaps global objects?)
 649     // Setting a checkpoint will ignore them as far as the
 650     // memory checking facility is concerned.
 651     // Of course you may argue that memory allocated in globals should be
 652     // checked, but this is a reasonable compromise.
 653     wxDebugContext::SetCheckpoint();
 654 #endif
 655 #endif
 656
 657     // take everything into a try-except block to be able to call
 658     // OnFatalException() if necessary
 659 #if wxUSE_ON_FATAL_EXCEPTION
 660     __try {
 661 #endif
 662         wxhInstance = (HINSTANCE) hInstance;
 663
 664         if (!wxEntryStart(0,0))
 665             return 0;
 666
 667         // create the application object or ensure that one already exists
 668         if (!wxTheApp)
 669         {
 670             // The app may have declared a global application object, but we recommend
 671             // the IMPLEMENT_APP macro is used instead, which sets an initializer
 672             // function for delayed, dynamic app object construction.
 673             wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
 674                          wxT("No initializer - use IMPLEMENT_APP macro.") );
 675
 676             wxTheApp = (wxApp*) (*wxApp::GetInitializerFunction()) ();
 677         }
 678
 679         wxCHECK_MSG( wxTheApp, 0, wxT("You have to define an instance of wxApp!") );
 680
 681         // save the WinMain() parameters
 682         if (lpCmdLine) // MicroWindows passes NULL
 683             wxTheApp->ConvertToStandardCommandArgs(lpCmdLine);
 684         wxTheApp->m_nCmdShow = nCmdShow;
 685
 686         // We really don't want timestamps by default, because it means
 687         // we can't simply double-click on the error message and get to that
 688         // line in the source. So VC++ at least, let's have a sensible default.
 689 #ifdef __VISUALC__
 690 #if wxUSE_LOG
 691         wxLog::SetTimestamp(NULL);
 692 #endif // wxUSE_LOG
 693 #endif // __VISUALC__
 694
 695         // init the app
 696         int retValue = wxEntryInitGui() && wxTheApp->OnInit() ? 0 : -1;
 697
 698         if ( retValue == 0 )
 699         {
 700             if ( enterLoop )
 701             {
 702                 // run the main loop
 703                 wxTheApp->OnRun();
 704             }
 705             else
 706             {
 707                 // we want to initialize, but not run or exit immediately.
 708                 return 1;
 709             }
 710         }
 711         //else: app initialization failed, so we skipped OnRun()
 712
 713         wxWindow *topWindow = wxTheApp->GetTopWindow();
 714         if ( topWindow )
 715         {
 716             // Forcibly delete the window.
 717             if ( topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
 718                     topWindow->IsKindOf(CLASSINFO(wxDialog)) )
 719             {
 720                 topWindow->Close(TRUE);
 721                 wxTheApp->DeletePendingObjects();
 722             }
 723             else
 724             {
 725                 delete topWindow;
 726                 wxTheApp->SetTopWindow(NULL);
 727             }
 728         }
 729
 730         retValue = wxTheApp->OnExit();
 731
 732         wxEntryCleanup();
 733
 734         return retValue;
 735
 736 #if wxUSE_ON_FATAL_EXCEPTION
 737     }
 738     __except ( gs_handleExceptions ? EXCEPTION_EXECUTE_HANDLER
 739                                    : EXCEPTION_CONTINUE_SEARCH ) {
 740         if ( wxTheApp )
 741         {
 742            // give the user a chance to do something special about this
 743            wxTheApp->OnFatalException();
 744         }
 745
 746         ::ExitProcess(3); // the same exit code as abort()
 747
 748         // NOTREACHED
 749     }
 750 #endif // wxUSE_ON_FATAL_EXCEPTION
 751 }
 752
 753 // restore warning state
 754 #ifdef __VISUALC__
 755     #pragma warning(default: 4715) // not all control paths return a value
 756 #endif // Visual C++
 757
 758 #else /*  _WINDLL  */
 759
 760 //----------------------------------------------------------------------
 761 // Entry point for wxWindows + the App in a DLL
 762 //----------------------------------------------------------------------
 763
 764 int wxEntry(WXHINSTANCE hInstance)
 765 {
 766     wxhInstance = (HINSTANCE) hInstance;
 767     wxEntryStart(0, 0);
 768
 769     // The app may have declared a global application object, but we recommend
 770     // the IMPLEMENT_APP macro is used instead, which sets an initializer function
 771     // for delayed, dynamic app object construction.
 772     if (!wxTheApp)
 773     {
 774         wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
 775                      "No initializer - use IMPLEMENT_APP macro." );
 776
 777         wxTheApp = (* wxApp::GetInitializerFunction()) ();
 778     }
 779
 780     wxCHECK_MSG( wxTheApp, 0, "You have to define an instance of wxApp!" );
 781
 782     wxTheApp->argc = 0;
 783     wxTheApp->argv = NULL;
 784
 785     wxEntryInitGui();
 786
 787     wxTheApp->OnInit();
 788
 789     wxWindow *topWindow = wxTheApp->GetTopWindow();
 790     if ( topWindow && topWindow->GetHWND())
 791     {
 792         topWindow->Show(TRUE);
 793     }
 794
 795     return 1;
 796 }
 797 #endif // _WINDLL
 798
 799 //// Static member initialization
 800
 801 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 802
 803 wxApp::wxApp()
 804 {
 805     argc = 0;
 806     argv = NULL;
 807     m_printMode = wxPRINT_WINDOWS;
 808     m_auto3D = TRUE;
 809 }
 810
 811 wxApp::~wxApp()
 812 {
 813     // Delete command-line args
 814     int i;
 815     for (i = 0; i < argc; i++)
 816     {
 817         delete[] argv[i];
 818     }
 819     delete[] argv;
 820 }
 821
 822 bool wxApp::Initialized()
 823 {
 824 #ifndef _WINDLL
 825     if (GetTopWindow())
 826         return TRUE;
 827     else
 828         return FALSE;
 829 #else // Assume initialized if DLL (no way of telling)
 830     return TRUE;
 831 #endif
 832 }
 833
 834 /*
 835  * Get and process a message, returning FALSE if WM_QUIT
 836  * received (and also set the flag telling the app to exit the main loop)
 837  *
 838  */
 839 bool wxApp::DoMessage()
 840 {
 841     BOOL rc = ::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0);
 842     if ( rc == 0 )
 843     {
 844         // got WM_QUIT
 845         m_keepGoing = FALSE;
 846
 847         return FALSE;
 848     }
 849     else if ( rc == -1 )
 850     {
 851         // should never happen, but let's test for it nevertheless
 852         wxLogLastError(wxT("GetMessage"));
 853     }
 854     else
 855     {
 856 #if wxUSE_THREADS
 857         wxASSERT_MSG( wxThread::IsMain(),
 858                       wxT("only the main thread can process Windows messages") );
 859
 860         static bool s_hadGuiLock = TRUE;
 861         static wxMsgArray s_aSavedMessages;
 862
 863         // if a secondary thread owns is doing GUI calls, save all messages for
 864         // later processing - we can't process them right now because it will
 865         // lead to recursive library calls (and we're not reentrant)
 866         if ( !wxGuiOwnedByMainThread() )
 867         {
 868             s_hadGuiLock = FALSE;
 869
 870             // leave out WM_COMMAND messages: too dangerous, sometimes
 871             // the message will be processed twice
 872             if ( !wxIsWaitingForThread() ||
 873                     s_currentMsg.message != WM_COMMAND )
 874             {
 875                 s_aSavedMessages.Add(s_currentMsg);
 876             }
 877
 878             return TRUE;
 879         }
 880         else
 881         {
 882             // have we just regained the GUI lock? if so, post all of the saved
 883             // messages
 884             //
 885             // FIXME of course, it's not _exactly_ the same as processing the
 886             //       messages normally - expect some things to break...
 887             if ( !s_hadGuiLock )
 888             {
 889                 s_hadGuiLock = TRUE;
 890
 891                 size_t count = s_aSavedMessages.GetCount();
 892                 for ( size_t n = 0; n < count; n++ )
 893                 {
 894                     MSG& msg = s_aSavedMessages[n];
 895
 896                     DoMessage((WXMSG *)&msg);
 897                 }
 898
 899                 s_aSavedMessages.Empty();
 900             }
 901         }
 902 #endif // wxUSE_THREADS
 903
 904         // Process the message
 905         DoMessage((WXMSG *)&s_currentMsg);
 906     }
 907
 908     return TRUE;
 909 }
 910
 911 void wxApp::DoMessage(WXMSG *pMsg)
 912 {
 913     if ( !ProcessMessage(pMsg) )
 914     {
 915         ::TranslateMessage((MSG *)pMsg);
 916         ::DispatchMessage((MSG *)pMsg);
 917     }
 918 }
 919
 920 /*
 921  * Keep trying to process messages until WM_QUIT
 922  * received.
 923  *
 924  * If there are messages to be processed, they will all be
 925  * processed and OnIdle will not be called.
 926  * When there are no more messages, OnIdle is called.
 927  * If OnIdle requests more time,
 928  * it will be repeatedly called so long as there are no pending messages.
 929  * A 'feature' of this is that once OnIdle has decided that no more processing
 930  * is required, then it won't get processing time until further messages
 931  * are processed (it'll sit in DoMessage).
 932  */
 933
 934 int wxApp::MainLoop()
 935 {
 936     m_keepGoing = TRUE;
 937
 938     while ( m_keepGoing )
 939     {
 940 #if wxUSE_THREADS
 941         wxMutexGuiLeaveOrEnter();
 942 #endif // wxUSE_THREADS
 943
 944         while ( !Pending() && ProcessIdle() )
 945             ;
 946
 947         // a message came or no more idle processing to do
 948         DoMessage();
 949     }
 950
 951     return s_currentMsg.wParam;
 952 }
 953
 954 // Returns TRUE if more time is needed.
 955 bool wxApp::ProcessIdle()
 956 {
 957     wxIdleEvent event;
 958     event.SetEventObject(this);
 959     ProcessEvent(event);
 960
 961     return event.MoreRequested();
 962 }
 963
 964 void wxApp::ExitMainLoop()
 965 {
 966     // this will set m_keepGoing to FALSE a bit later
 967     ::PostQuitMessage(0);
 968 }
 969
 970 bool wxApp::Pending()
 971 {
 972     return ::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0;
 973 }
 974
 975 void wxApp::Dispatch()
 976 {
 977     DoMessage();
 978 }
 979
 980 /*
 981  * Give all windows a chance to preprocess
 982  * the message. Some may have accelerator tables, or have
 983  * MDI complications.
 984  */
 985
 986 bool wxApp::ProcessMessage(WXMSG *wxmsg)
 987 {
 988     MSG *msg = (MSG *)wxmsg;
 989     HWND hwnd = msg->hwnd;
 990     wxWindow *wndThis = wxGetWindowFromHWND((WXHWND)hwnd);
 991
 992     // this may happen if the event occured in a standard modeless dialog (the
 993     // only example of which I know of is the find/replace dialog) - then call
 994     // IsDialogMessage() to make TAB navigation in it work
 995     if ( !wndThis )
 996     {
 997         // we need to find the dialog containing this control as
 998         // IsDialogMessage() just eats all the messages (i.e. returns TRUE for
 999         // them) if we call it for the control itself
1000         while ( hwnd && ::GetWindowLong(hwnd, GWL_STYLE) & WS_CHILD )
1001         {
1002             hwnd = ::GetParent(hwnd);
1003         }
1004
1005         return hwnd && ::IsDialogMessage(hwnd, msg) != 0;
1006     }
1007
1008 #if wxUSE_TOOLTIPS
1009     // we must relay WM_MOUSEMOVE events to the tooltip ctrl if we want it to
1010     // popup the tooltip bubbles
1011     if ( (msg->message == WM_MOUSEMOVE) )
1012     {
1013         wxToolTip *tt = wndThis->GetToolTip();
1014         if ( tt )
1015         {
1016             tt->RelayEvent(wxmsg);
1017         }
1018     }
1019 #endif // wxUSE_TOOLTIPS
1020
1021     // allow the window to prevent certain messages from being
1022     // translated/processed (this is currently used by wxTextCtrl to always
1023     // grab Ctrl-C/V/X, even if they are also accelerators in some parent)
1024     if ( !wndThis->MSWShouldPreProcessMessage(wxmsg) )
1025     {
1026         return FALSE;
1027     }
1028
1029     // try translations first: the accelerators override everything
1030     wxWindow *wnd;
1031
1032     for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
1033     {
1034         if ( wnd->MSWTranslateMessage(wxmsg))
1035             return TRUE;
1036
1037         // stop at first top level window, i.e. don't try to process the key
1038         // strokes originating in a dialog using the accelerators of the parent
1039         // frame - this doesn't make much sense
1040         if ( wnd->IsTopLevel() )
1041             break;
1042     }
1043
1044     // now try the other hooks (kbd navigation is handled here): we start from
1045     // wndThis->GetParent() because wndThis->MSWProcessMessage() was already
1046     // called above
1047     for ( wnd = wndThis->GetParent(); wnd; wnd = wnd->GetParent() )
1048     {
1049         if ( wnd->MSWProcessMessage(wxmsg) )
1050             return TRUE;
1051     }
1052
1053     // no special preprocessing for this message, dispatch it normally
1054     return FALSE;
1055 }
1056
1057 // this is a temporary hack and will be replaced by using wxEventLoop in the
1058 // future
1059 //
1060 // it is needed to allow other event loops (currently only one: the modal
1061 // dialog one) to reset the OnIdle() semaphore because otherwise OnIdle()
1062 // wouldn't do anything while a modal dialog shown from OnIdle() call is shown.
1063 bool wxIsInOnIdleFlag = FALSE;
1064
1065 void wxApp::OnIdle(wxIdleEvent& event)
1066 {
1067     // Avoid recursion (via ProcessEvent default case)
1068     if ( wxIsInOnIdleFlag )
1069         return;
1070
1071     wxIsInOnIdleFlag = TRUE;
1072
1073     // If there are pending events, we must process them: pending events
1074     // are either events to the threads other than main or events posted
1075     // with wxPostEvent() functions
1076     // GRG: I have moved this here so that all pending events are processed
1077     //   before starting to delete any objects. This behaves better (in
1078     //   particular, wrt wxPostEvent) and is coherent with wxGTK's current
1079     //   behaviour. Changed Feb/2000 before 2.1.14
1080     ProcessPendingEvents();
1081
1082     // 'Garbage' collection of windows deleted with Close().
1083     DeletePendingObjects();
1084
1085 #if wxUSE_LOG
1086     // flush the logged messages if any
1087     wxLog::FlushActive();
1088 #endif // wxUSE_LOG
1089
1090 #if wxUSE_DC_CACHEING
1091     // automated DC cache management: clear the cached DCs and bitmap
1092     // if it's likely that the app has finished with them, that is, we
1093     // get an idle event and we're not dragging anything.
1094     if (!::GetKeyState(MK_LBUTTON) && !::GetKeyState(MK_MBUTTON) && !::GetKeyState(MK_RBUTTON))
1095         wxDC::ClearCache();
1096 #endif // wxUSE_DC_CACHEING
1097
1098     // Send OnIdle events to all windows
1099     if ( SendIdleEvents() )
1100     {
1101         // SendIdleEvents() returns TRUE if at least one window requested more
1102         // idle events
1103         event.RequestMore(TRUE);
1104     }
1105
1106     wxIsInOnIdleFlag = FALSE;
1107 }
1108
1109 // Send idle event to all top-level windows
1110 bool wxApp::SendIdleEvents()
1111 {
1112     bool needMore = FALSE;
1113
1114     wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
1115     while (node)
1116     {
1117         wxWindow* win = node->GetData();
1118         if (SendIdleEvents(win))
1119             needMore = TRUE;
1120         node = node->GetNext();
1121     }
1122
1123     return needMore;
1124 }
1125
1126 // Send idle event to window and all subwindows
1127 bool wxApp::SendIdleEvents(wxWindow* win)
1128 {
1129     wxIdleEvent event;
1130     event.SetEventObject(win);
1131     win->GetEventHandler()->ProcessEvent(event);
1132
1133     bool needMore = event.MoreRequested();
1134
1135     wxWindowList::Node *node = win->GetChildren().GetFirst();
1136     while ( node )
1137     {
1138         wxWindow *win = node->GetData();
1139         if (SendIdleEvents(win))
1140             needMore = TRUE;
1141
1142         node = node->GetNext();
1143     }
1144
1145     return needMore;
1146 }
1147
1148 void wxApp::DeletePendingObjects()
1149 {
1150     wxNode *node = wxPendingDelete.GetFirst();
1151     while (node)
1152     {
1153         wxObject *obj = node->GetData();
1154
1155         delete obj;
1156
1157         if (wxPendingDelete.Member(obj))
1158             delete node;
1159
1160         // Deleting one object may have deleted other pending
1161         // objects, so start from beginning of list again.
1162         node = wxPendingDelete.GetFirst();
1163     }
1164 }
1165
1166 void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
1167 {
1168     if (GetTopWindow())
1169         GetTopWindow()->Close(TRUE);
1170 }
1171
1172 // Default behaviour: close the application with prompts. The
1173 // user can veto the close, and therefore the end session.
1174 void wxApp::OnQueryEndSession(wxCloseEvent& event)
1175 {
1176     if (GetTopWindow())
1177     {
1178         if (!GetTopWindow()->Close(!event.CanVeto()))
1179             event.Veto(TRUE);
1180     }
1181 }
1182
1183 /* static */
1184 int wxApp::GetComCtl32Version()
1185 {
1186 #ifdef __WXMICROWIN__
1187     return 0;
1188 #else
1189     // cache the result
1190     static int s_verComCtl32 = -1;
1191
1192     wxCRIT_SECT_DECLARE(csComCtl32);
1193     wxCRIT_SECT_LOCKER(lock, csComCtl32);
1194
1195     if ( s_verComCtl32 == -1 )
1196     {
1197         // initally assume no comctl32.dll at all
1198         s_verComCtl32 = 0;
1199
1200         // do we have it?
1201         HMODULE hModuleComCtl32 = ::GetModuleHandle(wxT("COMCTL32"));
1202
1203         // if so, then we can check for the version
1204         if ( hModuleComCtl32 )
1205         {
1206             // try to use DllGetVersion() if available in _headers_
1207             #ifdef DLLVER_PLATFORM_WINDOWS // defined in shlwapi.h
1208                 DLLGETVERSIONPROC pfnDllGetVersion = (DLLGETVERSIONPROC)
1209                     ::GetProcAddress(hModuleComCtl32, "DllGetVersion");
1210                 if ( pfnDllGetVersion )
1211                 {
1212                     DLLVERSIONINFO dvi;
1213                     dvi.cbSize = sizeof(dvi);
1214
1215                     HRESULT hr = (*pfnDllGetVersion)(&dvi);
1216                     if ( FAILED(hr) )
1217                     {
1218                         wxLogApiError(_T("DllGetVersion"), hr);
1219                     }
1220                     else
1221                     {
1222                         // this is incompatible with _WIN32_IE values, but
1223                         // compatible with the other values returned by
1224                         // GetComCtl32Version()
1225                         s_verComCtl32 = 100*dvi.dwMajorVersion +
1226                                             dvi.dwMinorVersion;
1227                     }
1228                 }
1229             #endif
1230                 // DllGetVersion() unavailable either during compile or
1231                 // run-time, try to guess the version otherwise
1232                 if ( !s_verComCtl32 )
1233                 {
1234                     // InitCommonControlsEx is unique to 4.70 and later
1235                     FARPROC theProc = ::GetProcAddress
1236                                         (
1237                                          hModuleComCtl32,
1238                                          "InitCommonControlsEx"
1239                                         );
1240
1241                     if ( !theProc )
1242                     {
1243                         // not found, must be 4.00
1244                         s_verComCtl32 = 400;
1245                     }
1246                     else
1247                     {
1248                         // many symbols appeared in comctl32 4.71, could use
1249                         // any of them except may be DllInstall
1250                         theProc = ::GetProcAddress
1251                                     (
1252                                      hModuleComCtl32,
1253                                      "InitializeFlatSB"
1254                                     );
1255                         if ( !theProc )
1256                         {
1257                             // not found, must be 4.70
1258                             s_verComCtl32 = 470;
1259                         }
1260                         else
1261                         {
1262                             // found, must be 4.71
1263                             s_verComCtl32 = 471;
1264                         }
1265                     }
1266                 }
1267         }
1268     }
1269
1270     return s_verComCtl32;
1271 #endif
1272 }
1273
1274 void wxExit()
1275 {
1276     if ( wxTheApp )
1277     {
1278         wxTheApp->ExitMainLoop();
1279     }
1280     else
1281     {
1282         // what else can we do?
1283         exit(-1);
1284     }
1285 }
1286
1287 // Yield to incoming messages
1288
1289 bool wxApp::Yield(bool onlyIfNeeded)
1290 {
1291     // MT-FIXME
1292     static bool s_inYield = FALSE;
1293
1294 #if wxUSE_LOG
1295     // disable log flushing from here because a call to wxYield() shouldn't
1296     // normally result in message boxes popping up &c
1297     wxLog::Suspend();
1298 #endif // wxUSE_LOG
1299
1300     if ( s_inYield )
1301     {
1302         if ( !onlyIfNeeded )
1303         {
1304             wxFAIL_MSG( wxT("wxYield called recursively" ) );
1305         }
1306
1307         return FALSE;
1308     }
1309
1310     s_inYield = TRUE;
1311
1312     // we don't want to process WM_QUIT from here - it should be processed in
1313     // the main event loop in order to stop it
1314     MSG msg;
1315     while ( PeekMessage(&msg, (HWND)0, 0, 0, PM_NOREMOVE) &&
1316             msg.message != WM_QUIT )
1317     {
1318 #if wxUSE_THREADS
1319         wxMutexGuiLeaveOrEnter();
1320 #endif // wxUSE_THREADS
1321
1322         if ( !wxTheApp->DoMessage() )
1323             break;
1324     }
1325
1326     // if there are pending events, we must process them.
1327     ProcessPendingEvents();
1328
1329 #if wxUSE_LOG
1330     // let the logs be flashed again
1331     wxLog::Resume();
1332 #endif // wxUSE_LOG
1333
1334     s_inYield = FALSE;
1335
1336     return TRUE;
1337 }
1338
1339 bool wxHandleFatalExceptions(bool doit)
1340 {
1341 #if wxUSE_ON_FATAL_EXCEPTION
1342     // assume this can only be called from the main thread
1343     gs_handleExceptions = doit;
1344
1345     return TRUE;
1346 #else
1347     wxFAIL_MSG(_T("set wxUSE_ON_FATAL_EXCEPTION to 1 to use this function"));
1348
1349     (void)doit;
1350     return FALSE;
1351 #endif
1352 }
1353
1354 //-----------------------------------------------------------------------------
1355 // wxWakeUpIdle
1356 //-----------------------------------------------------------------------------
1357
1358 void wxWakeUpIdle()
1359 {
1360     // Send the top window a dummy message so idle handler processing will
1361     // start up again.  Doing it this way ensures that the idle handler
1362     // wakes up in the right thread (see also wxWakeUpMainThread() which does
1363     // the same for the main app thread only)
1364     wxWindow *topWindow = wxTheApp->GetTopWindow();
1365     if ( topWindow )
1366     {
1367         if ( !::PostMessage(GetHwndOf(topWindow), WM_NULL, 0, 0) )
1368         {
1369             // should never happen
1370             wxLogLastError(wxT("PostMessage(WM_NULL)"));
1371         }
1372     }
1373 }
1374
1375 //-----------------------------------------------------------------------------
1376
1377 // For some reason, with MSVC++ 1.5, WinMain isn't linked in properly
1378 // if in a separate file. So include it here to ensure it's linked.
1379 #if (defined(__VISUALC__) && !defined(__WIN32__)) || (defined(__GNUWIN32__) && !defined(__WINE__) && !defined(__TWIN32__) && !defined(WXMAKINGDLL))
1380 #include "main.cpp"
1381 #endif