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 #ifdef __GNUG__
  13 #pragma implementation "app.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #if defined(__BORLANDC__)
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24   #include "wx/frame.h"
  25   #include "wx/app.h"
  26   #include "wx/utils.h"
  27   #include "wx/gdicmn.h"
  28   #include "wx/pen.h"
  29   #include "wx/brush.h"
  30   #include "wx/cursor.h"
  31   #include "wx/icon.h"
  32   #include "wx/palette.h"
  33   #include "wx/dc.h"
  34   #include "wx/dialog.h"
  35   #include "wx/msgdlg.h"
  36 #endif
  37
  38 #include "wx/msw/private.h"
  39 #include "wx/log.h"
  40 #include "wx/module.h"
  41
  42 #if wxUSE_WX_RESOURCES
  43   #include "wx/resource.h"
  44 #endif
  45
  46 #include <string.h>
  47 #include <ctype.h>
  48
  49 #if defined(__WIN95__) && !defined(__GNUWIN32__)
  50   #include <commctrl.h>
  51 #endif
  52
  53 // use debug CRT functions for memory leak detections in VC++ if we're not
  54 // using wxWindows own methods
  55 #if defined(__WXDEBUG__) && defined(_MSC_VER) && !wxUSE_GLOBAL_MEMORY_OPERATORS && !defined(__NO_VC_CRTDBG__)
  56     #define wxUSE_VC_CRTDBG
  57 #else
  58     #undef wxUSE_VC_CRTDBG
  59 #endif
  60
  61 #ifdef wxUSE_VC_CRTDBG
  62   // VC++ uses this macro as debug/release mode indicator
  63   #ifndef _DEBUG
  64     #define _DEBUG
  65   #endif
  66
  67   #include <crtdbg.h>
  68 #endif
  69
  70 extern char *wxBuffer;
  71 extern char *wxOsVersion;
  72 extern wxList *wxWinHandleList;
  73 extern wxList wxPendingDelete;
  74 extern void wxSetKeyboardHook(bool doIt);
  75 extern wxCursor *g_globalCursor;
  76
  77 HINSTANCE wxhInstance = 0;
  78 static MSG s_currentMsg;
  79 wxApp *wxTheApp = NULL;
  80
  81 // @@ why not const? and not static?
  82 char wxFrameClassName[]         = "wxFrameClass";
  83 char wxMDIFrameClassName[]      = "wxMDIFrameClass";
  84 char wxMDIChildFrameClassName[] = "wxMDIChildFrameClass";
  85 char wxPanelClassName[]         = "wxPanelClass";
  86 char wxCanvasClassName[]        = "wxCanvasClass";
  87
  88 HICON wxSTD_FRAME_ICON = NULL;
  89 HICON wxSTD_MDICHILDFRAME_ICON = NULL;
  90 HICON wxSTD_MDIPARENTFRAME_ICON = NULL;
  91
  92 HICON wxDEFAULT_FRAME_ICON = NULL;
  93 HICON wxDEFAULT_MDICHILDFRAME_ICON = NULL;
  94 HICON wxDEFAULT_MDIPARENTFRAME_ICON = NULL;
  95
  96 HBRUSH wxDisableButtonBrush = 0;
  97
  98 LRESULT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM);
  99
 100 #if !USE_SHARED_LIBRARY
 101   IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 102
 103   BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 104       EVT_IDLE(wxApp::OnIdle)
 105       EVT_END_SESSION(wxApp::OnEndSession)
 106       EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 107   END_EVENT_TABLE()
 108 #endif
 109
 110 long wxApp::sm_lastMessageTime = 0;
 111
 112 #ifdef __WIN95__
 113   static HINSTANCE gs_hRichEdit = NULL;
 114 #endif
 115
 116 //// Initialize
 117
 118 bool wxApp::Initialize()
 119 {
 120     wxBuffer = new char[1500];
 121
 122 #ifdef wxUSE_VC_CRTDBG
 123     // do check for memory leaks on program exit
 124     // (another useful flag is _CRTDBG_DELAY_FREE_MEM_DF which doesn't free
 125     //  deallocated memory which may be used to simulate low-memory condition)
 126     _CrtSetDbgFlag(_CrtSetDbgFlag(_CRTDBG_REPORT_FLAG) | _CRTDBG_LEAK_CHECK_DF);
 127 #endif // debug build under MS VC++
 128
 129     wxClassInfo::InitializeClasses();
 130
 131 #if wxUSE_RESOURCES
 132     wxGetResource("wxWindows", "OsVersion", &wxOsVersion);
 133 #endif
 134
 135     wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
 136     wxTheColourDatabase->Initialize();
 137
 138     wxInitializeStockLists();
 139     wxInitializeStockObjects();
 140
 141 #if wxUSE_WX_RESOURCES
 142     wxInitializeResourceSystem();
 143 #endif
 144
 145     wxBitmap::InitStandardHandlers();
 146
 147 #if defined(__WIN95__)
 148     InitCommonControls();
 149     gs_hRichEdit = LoadLibrary("RICHED32.DLL");
 150
 151     if (gs_hRichEdit == NULL)
 152     {
 153       wxMessageBox("Could not initialise Rich Edit DLL");
 154     }
 155 #endif
 156
 157     int iMsg = 96;
 158
 159    // for OLE, enlarge message queue to be as large as possible
 160    while (!SetMessageQueue(iMsg) && (iMsg -= 8));
 161
 162 /*
 163     DWORD dwOleVer;
 164     dwOleVer = CoBuildVersion();
 165
 166     // check the OLE library version
 167     if (rmm != HIWORD(dwOleVer))
 168     {
 169         wxMessageBox("Incorrect version of OLE libraries.");
 170         return FALSE;
 171     }
 172 */
 173
 174     // we need to initialize OLE library
 175     if ( FAILED(::OleInitialize(NULL)) )
 176       wxFatalError(_("Cannot initialize OLE"));
 177
 178 #if CTL3D
 179     if (!Ctl3dRegister(wxhInstance))
 180       wxFatalError("Cannot register CTL3D");
 181
 182     Ctl3dAutoSubclass(wxhInstance);
 183 #endif
 184
 185     g_globalCursor = new wxCursor;
 186
 187     wxSTD_FRAME_ICON = LoadIcon(wxhInstance, "wxSTD_FRAME");
 188     wxSTD_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDIPARENTFRAME");
 189     wxSTD_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDICHILDFRAME");
 190
 191     wxDEFAULT_FRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_FRAME");
 192     wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDIPARENTFRAME");
 193     wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDICHILDFRAME");
 194
 195     RegisterWindowClasses();
 196
 197     // Create the brush for disabling bitmap buttons
 198
 199     LOGBRUSH lb ;
 200     lb.lbStyle = BS_PATTERN;
 201     lb.lbHatch = (int)LoadBitmap( wxhInstance, "wxDISABLE_BUTTON_BITMAP" ) ;
 202     wxDisableButtonBrush = ::CreateBrushIndirect( & lb ) ;
 203     ::DeleteObject( (HGDIOBJ)lb.lbHatch ) ;
 204
 205 #if wxUSE_PENWINDOWS
 206     wxRegisterPenWin();
 207 #endif
 208
 209     wxWinHandleList = new wxList(wxKEY_INTEGER);
 210
 211     // This is to foil optimizations in Visual C++ that
 212     // throw out dummy.obj.
 213 #if (_MSC_VER >= 800) && !defined(WXMAKINGDLL)
 214     extern char wxDummyChar;
 215     if (wxDummyChar) wxDummyChar++;
 216 #endif
 217
 218     wxSetKeyboardHook(TRUE);
 219
 220     wxModule::RegisterModules();
 221     if (!wxModule::InitializeModules())
 222         return FALSE;
 223     return TRUE;
 224 }
 225
 226 //// RegisterWindowClasses
 227
 228 bool wxApp::RegisterWindowClasses()
 229 {
 230 ///////////////////////////////////////////////////////////////////////
 231 // Register the frame window class.
 232   WNDCLASS wndclass;   // Structure used to register Windows class.
 233
 234   wndclass.style         = CS_HREDRAW | CS_VREDRAW;
 235   wndclass.lpfnWndProc   = (WNDPROC)wxWndProc;
 236   wndclass.cbClsExtra    = 0;
 237   wndclass.cbWndExtra    = sizeof( DWORD ); // was 4
 238   wndclass.hInstance     = wxhInstance;
 239   wndclass.hIcon         = NULL;        // wxSTD_FRAME_ICON;
 240   wndclass.hCursor       = LoadCursor( NULL, IDC_ARROW );
 241   wndclass.hbrBackground =  (HBRUSH)(COLOR_APPWORKSPACE+1) ;
 242 //  wndclass.hbrBackground = GetStockObject( WHITE_BRUSH );
 243   wndclass.lpszMenuName  = NULL;
 244 #ifdef _MULTIPLE_INSTANCES
 245   sprintf( wxFrameClassName,"wxFrameClass%d", wxhInstance );
 246 #endif
 247   wndclass.lpszClassName = wxFrameClassName;
 248
 249   if (!RegisterClass( &wndclass ))
 250   {
 251     // wxFatalError("Can't register Frame Window class");
 252   }
 253
 254 ///////////////////////////////////////////////////////////////////////
 255 // Register the MDI frame window class.
 256   WNDCLASS wndclass1;   // Structure used to register Windows class.
 257
 258   wndclass1.style         = CS_HREDRAW | CS_VREDRAW;
 259   wndclass1.lpfnWndProc   = (WNDPROC)wxWndProc;
 260   wndclass1.cbClsExtra    = 0;
 261   wndclass1.cbWndExtra    = sizeof( DWORD ); // was 4
 262   wndclass1.hInstance     = wxhInstance;
 263   wndclass1.hIcon         = NULL; // wxSTD_MDIPARENTFRAME_ICON;
 264   wndclass1.hCursor       = LoadCursor( NULL, IDC_ARROW );
 265 //  wndclass1.hbrBackground =  (HBRUSH)(COLOR_APPWORKSPACE+1) ;
 266   wndclass1.hbrBackground = NULL;
 267   wndclass1.lpszMenuName  = NULL;
 268
 269   wndclass1.lpszClassName = wxMDIFrameClassName;
 270   if (!RegisterClass( &wndclass1 ))
 271   {
 272 //    wxFatalError("Can't register MDI Frame window class");
 273 //  return FALSE;
 274   }
 275
 276 ///////////////////////////////////////////////////////////////////////
 277 // Register the MDI child frame window class.
 278   WNDCLASS wndclass4;   // Structure used to register Windows class.
 279
 280   wndclass4.style         = CS_HREDRAW | CS_VREDRAW;
 281   wndclass4.lpfnWndProc   = (WNDPROC)wxWndProc;
 282   wndclass4.cbClsExtra    = 0;
 283   wndclass4.cbWndExtra    = sizeof( DWORD ); // was 4
 284   wndclass4.hInstance     = wxhInstance;
 285   wndclass4.hIcon         = NULL;       // wxSTD_MDICHILDFRAME_ICON;
 286   wndclass4.hCursor       = LoadCursor( NULL, IDC_ARROW );
 287   // TODO: perhaps this should be NULL so that Windows doesn't
 288   // paint the background itself (would OnEraseBackground duplicate
 289   // this?)
 290   wndclass4.hbrBackground =  (HBRUSH)(COLOR_WINDOW+1) ;
 291 //  wndclass4.hbrBackground = NULL;
 292   wndclass4.lpszMenuName  = NULL;
 293   wndclass4.lpszClassName = wxMDIChildFrameClassName;
 294
 295   if (!RegisterClass( &wndclass4 ))
 296   {
 297 //   wxFatalError("Can't register MDI child frame window class");
 298 //   return FALSE;
 299   }
 300
 301 ///////////////////////////////////////////////////////////////////////
 302 // Register the panel window class.
 303   WNDCLASS wndclass2;   // Structure used to register Windows class.
 304   memset(&wndclass2, 0, sizeof(WNDCLASS));   // start with NULL defaults
 305   // Use CS_OWNDC to avoid messing about restoring the context
 306   // for every graphic operation.
 307   wndclass2.style         = CS_HREDRAW | CS_VREDRAW;
 308   wndclass2.lpfnWndProc   = (WNDPROC)wxWndProc;
 309   wndclass2.cbClsExtra    = 0;
 310   wndclass2.cbWndExtra    = sizeof( DWORD ); // was 4
 311   wndclass2.hInstance     = wxhInstance;
 312   wndclass2.hIcon         = NULL;
 313   wndclass2.hCursor       = NULL;
 314 //  wndclass2.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1) ;
 315   wndclass2.hbrBackground = (HBRUSH) GetStockObject( LTGRAY_BRUSH );
 316   wndclass2.lpszMenuName  = NULL;
 317   wndclass2.lpszClassName = wxPanelClassName;
 318   if (!RegisterClass( &wndclass2 ))
 319   {
 320 //   wxFatalError("Can't register Panel Window class");
 321 //   return FALSE;
 322   }
 323
 324 ///////////////////////////////////////////////////////////////////////
 325 // Register the canvas and textsubwindow class name
 326   WNDCLASS wndclass3;   // Structure used to register Windows class.
 327   memset(&wndclass3, 0, sizeof(WNDCLASS));   // start with NULL defaults
 328   // Use CS_OWNDC to avoid messing about restoring the context
 329   // for every graphic operation.
 330 //  wndclass3.style         = CS_HREDRAW | CS_VREDRAW | CS_OWNDC | CS_DBLCLKS ;
 331   // wxWin 2.0
 332   wndclass3.style         = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ;
 333   wndclass3.lpfnWndProc   = (WNDPROC)wxWndProc;
 334   wndclass3.cbClsExtra    = 0;
 335   wndclass3.cbWndExtra    = sizeof( DWORD ); // was 4
 336   wndclass3.hInstance     = wxhInstance;
 337   wndclass3.hIcon         = NULL;
 338   wndclass3.hCursor       = NULL;
 339 //  wndclass3.hbrBackground = (HBRUSH)(COLOR_WINDOW+1) ;
 340   wndclass3.hbrBackground = NULL;
 341   wndclass3.lpszMenuName  = NULL;
 342   wndclass3.lpszClassName = wxCanvasClassName;
 343   if (!RegisterClass( &wndclass3))
 344   {
 345 //   wxFatalError("Can't register Canvas class");
 346 //   return FALSE;
 347   }
 348
 349   return TRUE;
 350 }
 351
 352 //// Convert Windows to argc, argv style
 353
 354 void wxApp::ConvertToStandardCommandArgs(char* lpCmdLine)
 355 {
 356     wxStringList args;
 357
 358     wxString cmdLine(lpCmdLine);
 359     int count = 0;
 360
 361     // Get application name
 362     char name[260]; // 260 is MAX_PATH value from windef.h
 363     ::GetModuleFileName(wxhInstance, name, WXSIZEOF(name));
 364
 365     // GNUWIN32 already fills in the first arg with the application name.
 366 #if !defined(__GNUWIN32__)
 367     args.Add(name);
 368     count ++;
 369 #endif
 370
 371     strcpy(name, wxFileNameFromPath(name));
 372     wxStripExtension(name);
 373     wxTheApp->SetAppName(name);
 374
 375     // Break up string
 376     // Treat strings enclosed in double-quotes as single arguments
 377     int i = 0;
 378     int len = cmdLine.Length();
 379     while (i < len)
 380     {
 381         // Skip whitespace
 382         while ((i < len) && isspace(cmdLine.GetChar(i)))
 383             i ++;
 384
 385         if (i < len)
 386         {
 387             if (cmdLine.GetChar(i) == '"') // We found the start of a string
 388             {
 389                 i ++;
 390                 int first = i;
 391                 while ((i < len) && (cmdLine.GetChar(i) != '"'))
 392                     i ++;
 393
 394                 wxString arg(cmdLine.Mid(first, (i - first)));
 395
 396                 args.Add(arg);
 397                 count ++;
 398
 399                 if (i < len)
 400                     i ++; // Skip past 2nd quote
 401             }
 402             else // Unquoted argument
 403             {
 404                 int first = i;
 405                 while ((i < len) && !isspace(cmdLine.GetChar(i)))
 406                     i ++;
 407
 408                 wxString arg(cmdLine.Mid(first, (i - first)));
 409
 410                 args.Add(arg);
 411                 count ++;
 412             }
 413         }
 414     }
 415
 416     wxTheApp->argv = new char*[count + 1];
 417     for (i = 0; i < count; i++)
 418     {
 419         wxString arg(args[i]);
 420         wxTheApp->argv[i] = copystring((const char*)arg);
 421     }
 422     wxTheApp->argv[count] = NULL; // argv[] is a NULL-terminated list
 423     wxTheApp->argc = count;
 424 }
 425
 426 //// Cleans up any wxWindows internal structures left lying around
 427
 428 void wxApp::CleanUp()
 429 {
 430   //// COMMON CLEANUP
 431   wxModule::CleanUpModules();
 432
 433 #if wxUSE_WX_RESOURCES
 434   wxCleanUpResourceSystem();
 435
 436 //  wxDefaultResourceTable->ClearTable();
 437 #endif
 438
 439   // Indicate that the cursor can be freed,
 440   // so that cursor won't be deleted by deleting
 441   // the bitmap list before g_globalCursor goes out
 442   // of scope (double deletion of the cursor).
 443   wxSetCursor(wxNullCursor);
 444   delete g_globalCursor;
 445
 446   wxDeleteStockObjects() ;
 447
 448   // Destroy all GDI lists, etc.
 449   wxDeleteStockLists();
 450
 451   delete wxTheColourDatabase;
 452   wxTheColourDatabase = NULL;
 453
 454   wxBitmap::CleanUpHandlers();
 455
 456   delete[] wxBuffer;
 457   wxBuffer = NULL;
 458
 459   //// WINDOWS-SPECIFIC CLEANUP
 460
 461   wxSetKeyboardHook(FALSE);
 462
 463 #ifdef __WIN95__
 464   if (gs_hRichEdit != NULL)
 465     FreeLibrary(gs_hRichEdit);
 466 #endif
 467
 468 #if wxUSE_PENWINDOWS
 469   wxCleanUpPenWin();
 470 #endif
 471
 472   if (wxSTD_FRAME_ICON)
 473     DestroyIcon(wxSTD_FRAME_ICON);
 474   if (wxSTD_MDICHILDFRAME_ICON)
 475     DestroyIcon(wxSTD_MDICHILDFRAME_ICON);
 476   if (wxSTD_MDIPARENTFRAME_ICON)
 477     DestroyIcon(wxSTD_MDIPARENTFRAME_ICON);
 478
 479   if (wxDEFAULT_FRAME_ICON)
 480     DestroyIcon(wxDEFAULT_FRAME_ICON);
 481   if (wxDEFAULT_MDICHILDFRAME_ICON)
 482     DestroyIcon(wxDEFAULT_MDICHILDFRAME_ICON);
 483   if (wxDEFAULT_MDIPARENTFRAME_ICON)
 484     DestroyIcon(wxDEFAULT_MDIPARENTFRAME_ICON);
 485
 486   if ( wxDisableButtonBrush )
 487     ::DeleteObject( wxDisableButtonBrush ) ;
 488
 489   ::OleUninitialize();
 490
 491 #if CTL3D
 492   Ctl3dUnregister(wxhInstance);
 493 #endif
 494
 495   if (wxWinHandleList)
 496     delete wxWinHandleList ;
 497
 498   wxClassInfo::CleanUpClasses();
 499
 500   delete wxTheApp;
 501   wxTheApp = NULL;
 502
 503 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 504   // At this point we want to check if there are any memory
 505   // blocks that aren't part of the wxDebugContext itself,
 506   // as a special case. Then when dumping we need to ignore
 507   // wxDebugContext, too.
 508   if (wxDebugContext::CountObjectsLeft() > 0)
 509   {
 510       wxLogDebug("There were memory leaks.");
 511       wxDebugContext::Dump();
 512       wxDebugContext::PrintStatistics();
 513   }
 514 //  wxDebugContext::SetStream(NULL, NULL);
 515 #endif
 516
 517   // do it as the very last thing because everything else can log messages
 518   wxLog::DontCreateOnDemand();
 519   delete wxLog::SetActiveTarget(NULL);
 520 }
 521
 522 #if !defined(_WINDLL) || (defined(_WINDLL) && defined(WXMAKINGDLL))
 523
 524 //// Main wxWindows entry point
 525 int wxEntry(WXHINSTANCE hInstance,
 526             WXHINSTANCE WXUNUSED(hPrevInstance),
 527             char *lpCmdLine,
 528             int nCmdShow,
 529             bool enterLoop)
 530 {
 531 #ifndef __WXDEBUG__ // take everything into a try-except block in release build
 532   try {
 533 #endif
 534
 535   wxhInstance = (HINSTANCE) hInstance;
 536
 537   if (!wxApp::Initialize())
 538     return 0;
 539
 540   // create the application object or ensure that one already exists
 541   if (!wxTheApp)
 542   {
 543     // The app may have declared a global application object, but we recommend
 544     // the IMPLEMENT_APP macro is used instead, which sets an initializer
 545     // function for delayed, dynamic app object construction.
 546     wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
 547                  "No initializer - use IMPLEMENT_APP macro." );
 548
 549     wxTheApp = (*wxApp::GetInitializerFunction()) ();
 550   }
 551
 552   wxCHECK_MSG( wxTheApp, 0, "You have to define an instance of wxApp!" );
 553
 554   // save the WinMain() parameters
 555   wxTheApp->ConvertToStandardCommandArgs(lpCmdLine);
 556   wxTheApp->m_nCmdShow = nCmdShow;
 557
 558   // GUI-specific initialisation. In fact on Windows we don't have any,
 559   // but this call is provided for compatibility across platforms.
 560   wxTheApp->OnInitGui() ;
 561
 562   int retValue = 0;
 563
 564   if ( wxTheApp->OnInit() )
 565   {
 566       if ( enterLoop )
 567       {
 568           retValue = wxTheApp->OnRun();
 569       }
 570   }
 571   //else: app initialization failed, so we skipped OnRun()
 572
 573   wxWindow *topWindow = wxTheApp->GetTopWindow();
 574   if ( topWindow )
 575   {
 576       // Forcibly delete the window.
 577       if ( topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
 578            topWindow->IsKindOf(CLASSINFO(wxDialog)) )
 579       {
 580           topWindow->Close(TRUE);
 581           wxTheApp->DeletePendingObjects();
 582       }
 583       else
 584       {
 585           delete topWindow;
 586           wxTheApp->SetTopWindow(NULL);
 587       }
 588   }
 589
 590   wxTheApp->OnExit();
 591
 592   // flush the logged messages if any
 593   wxLog *pLog = wxLog::GetActiveTarget();
 594   if ( pLog != NULL && pLog->HasPendingMessages() )
 595     pLog->Flush();
 596
 597
 598   wxApp::CleanUp();
 599
 600   return retValue;
 601 #ifndef __WXDEBUG__ // catch exceptions only in release build
 602   }
 603   except ( EXCEPTION_EXECUTE_HANDLER ) {
 604     /*
 605     if ( wxTheApp )
 606       wxTheApp->OnFatalException();
 607     */
 608
 609     ::ExitProcess(3); // the same exit code as abort()
 610   }
 611 #endif //debug
 612 }
 613
 614 #else /*  _WINDLL  */
 615
 616 //// Entry point for DLLs
 617
 618 int wxEntry(WXHINSTANCE hInstance)
 619 {
 620   wxhInstance = (HINSTANCE) hInstance;
 621   wxApp::Initialize();
 622
 623   // The app may have declared a global application object, but we recommend
 624   // the IMPLEMENT_APP macro is used instead, which sets an initializer function
 625   // for delayed, dynamic app object construction.
 626
 627   if (!wxTheApp)
 628   {
 629     if (!wxApp::GetInitializerFunction())
 630     {
 631       MessageBox(NULL, "No initializer - use IMPLEMENT_APP macro.", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
 632     return 0;
 633     }
 634
 635     wxTheApp = (* wxApp::GetInitializerFunction()) ();
 636   }
 637
 638   if (!wxTheApp) {
 639     MessageBox(NULL, "You have to define an instance of wxApp!", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
 640     return 0;
 641   }
 642
 643   wxTheApp->argc = 0;
 644   wxTheApp->argv = NULL;
 645
 646   wxTheApp->OnInitGui();
 647
 648   wxTheApp->OnInit();
 649
 650   if (wxTheApp->GetTopWindow() && wxTheApp->GetTopWindow()->GetHWND()) {
 651     wxTheApp->GetTopWindow()->Show(TRUE);
 652   }
 653
 654   return 1;
 655 }
 656 #endif // _WINDLL
 657
 658 //// Static member initialization
 659
 660 wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL;
 661
 662 wxApp::wxApp()
 663 {
 664   m_topWindow = NULL;
 665   wxTheApp = this;
 666   m_className = "";
 667   m_wantDebugOutput = TRUE ;
 668   m_appName = "";
 669   argc = 0;
 670   argv = NULL;
 671 #ifdef __WXMSW__
 672   m_printMode = wxPRINT_WINDOWS;
 673 #else
 674   m_printMode = wxPRINT_POSTSCRIPT;
 675 #endif
 676   m_exitOnFrameDelete = TRUE;
 677   m_auto3D = TRUE;
 678 }
 679
 680 wxApp::~wxApp()
 681 {
 682   // Delete command-line args
 683   int i;
 684   for (i = 0; i < argc; i++)
 685   {
 686     delete[] argv[i];
 687   }
 688   delete[] argv;
 689 }
 690
 691 bool wxApp::Initialized()
 692 {
 693 #ifndef _WINDLL
 694   if (GetTopWindow())
 695     return TRUE;
 696   else
 697     return FALSE;
 698 #endif
 699 #ifdef _WINDLL // Assume initialized if DLL (no way of telling)
 700   return TRUE;
 701 #endif
 702 }
 703
 704 /*
 705  * Get and process a message, returning FALSE if WM_QUIT
 706  * received.
 707  *
 708  */
 709 bool wxApp::DoMessage()
 710 {
 711   if (!::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0))
 712   {
 713     return FALSE;
 714   }
 715
 716   // Process the message
 717   if (!ProcessMessage((WXMSG *)&s_currentMsg))
 718   {
 719     ::TranslateMessage(&s_currentMsg);
 720     wxApp::sm_lastMessageTime = s_currentMsg.time; /* MATTHEW: timeStamp impl. */
 721     ::DispatchMessage(&s_currentMsg);
 722   }
 723   return TRUE;
 724 }
 725
 726 /*
 727  * Keep trying to process messages until WM_QUIT
 728  * received.
 729  *
 730  * If there are messages to be processed, they will all be
 731  * processed and OnIdle will not be called.
 732  * When there are no more messages, OnIdle is called.
 733  * If OnIdle requests more time,
 734  * it will be repeatedly called so long as there are no pending messages.
 735  * A 'feature' of this is that once OnIdle has decided that no more processing
 736  * is required, then it won't get processing time until further messages
 737  * are processed (it'll sit in DoMessage).
 738  */
 739
 740 int wxApp::MainLoop()
 741 {
 742   m_keepGoing = TRUE;
 743   while (m_keepGoing)
 744   {
 745     while (!::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) &&
 746            ProcessIdle()) {}
 747     if (!DoMessage())
 748       m_keepGoing = FALSE;
 749   }
 750
 751   return s_currentMsg.wParam;
 752 }
 753
 754 // Returns TRUE if more time is needed.
 755 bool wxApp::ProcessIdle()
 756 {
 757     wxIdleEvent event;
 758     event.SetEventObject(this);
 759     ProcessEvent(event);
 760
 761     return event.MoreRequested();
 762 }
 763
 764 void wxApp::ExitMainLoop()
 765 {
 766   m_keepGoing = FALSE;
 767 }
 768
 769 bool wxApp::Pending()
 770 {
 771   return (::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0) ;
 772 }
 773
 774 void wxApp::Dispatch()
 775 {
 776     if (!DoMessage())
 777       m_keepGoing = FALSE;
 778 }
 779
 780 /*
 781  * Give all windows a chance to preprocess
 782  * the message. Some may have accelerator tables, or have
 783  * MDI complications.
 784  */
 785 bool wxApp::ProcessMessage(WXMSG *Msg)
 786 {
 787   MSG *msg = (MSG *)Msg;
 788
 789   HWND hWnd;
 790
 791   // Try translations first; find the youngest window with
 792   // a translation table.
 793   for (hWnd = msg->hwnd; hWnd != NULL; hWnd = ::GetParent(hWnd))
 794   {
 795     wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd);
 796     if (wnd)
 797     {
 798        if (wnd->MSWTranslateMessage(Msg))
 799          return TRUE;
 800     }
 801   }
 802
 803   // Anyone for a non-translation message? Try youngest descendants first.
 804   for (hWnd = msg->hwnd; hWnd != NULL; hWnd = ::GetParent(hWnd))
 805   {
 806     wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd);
 807     if (wnd)
 808     {
 809        if (wnd->MSWProcessMessage(Msg))
 810          return TRUE;
 811     }
 812   }
 813   return FALSE;
 814 }
 815
 816 void wxApp::OnIdle(wxIdleEvent& event)
 817 {
 818   static bool inOnIdle = FALSE;
 819
 820   // Avoid recursion (via ProcessEvent default case)
 821   if (inOnIdle)
 822     return;
 823
 824   inOnIdle = TRUE;
 825
 826   // 'Garbage' collection of windows deleted with Close().
 827   DeletePendingObjects();
 828
 829   // flush the logged messages if any
 830   wxLog *pLog = wxLog::GetActiveTarget();
 831   if ( pLog != NULL && pLog->HasPendingMessages() )
 832     pLog->Flush();
 833
 834   // Send OnIdle events to all windows
 835   bool needMore = SendIdleEvents();
 836 //  bool needMore = FALSE;
 837
 838   if (needMore)
 839     event.RequestMore(TRUE);
 840
 841   inOnIdle = FALSE;
 842 }
 843
 844 // Send idle event to all top-level windows
 845 bool wxApp::SendIdleEvents()
 846 {
 847     bool needMore = FALSE;
 848   wxNode* node = wxTopLevelWindows.First();
 849   while (node)
 850   {
 851     wxWindow* win = (wxWindow*) node->Data();
 852     if (SendIdleEvents(win))
 853             needMore = TRUE;
 854
 855     node = node->Next();
 856   }
 857     return needMore;
 858 }
 859
 860 // Send idle event to window and all subwindows
 861 bool wxApp::SendIdleEvents(wxWindow* win)
 862 {
 863   bool needMore = FALSE;
 864
 865   wxIdleEvent event;
 866   event.SetEventObject(win);
 867   win->GetEventHandler()->ProcessEvent(event);
 868
 869   if (event.MoreRequested())
 870     needMore = TRUE;
 871
 872   wxNode* node = win->GetChildren()->First();
 873   while (node)
 874   {
 875     wxWindow* win = (wxWindow*) node->Data();
 876     if (SendIdleEvents(win))
 877       needMore = TRUE;
 878
 879     node = node->Next();
 880   }
 881   return needMore ;
 882 }
 883
 884 void wxApp::DeletePendingObjects()
 885 {
 886   wxNode *node = wxPendingDelete.First();
 887   while (node)
 888   {
 889     wxObject *obj = (wxObject *)node->Data();
 890
 891     delete obj;
 892
 893     if (wxPendingDelete.Member(obj))
 894       delete node;
 895
 896     // Deleting one object may have deleted other pending
 897     // objects, so start from beginning of list again.
 898     node = wxPendingDelete.First();
 899   }
 900 }
 901
 902 void wxApp::OnEndSession(wxCloseEvent& event)
 903 {
 904     if (GetTopWindow())
 905         GetTopWindow()->Close(TRUE);
 906 }
 907
 908 // Default behaviour: close the application with prompts. The
 909 // user can veto the close, and therefore the end session.
 910 void wxApp::OnQueryEndSession(wxCloseEvent& event)
 911 {
 912     if (GetTopWindow())
 913     {
 914         if (!GetTopWindow()->Close(!event.CanVeto()))
 915             event.Veto(TRUE);
 916     }
 917 }
 918
 919 wxLog* wxApp::CreateLogTarget()
 920 {
 921     return new wxLogGui;
 922 }
 923
 924 wxWindow* wxApp::GetTopWindow() const
 925 {
 926     if (m_topWindow)
 927         return m_topWindow;
 928     else if (wxTopLevelWindows.Number() > 0)
 929         return (wxWindow*) wxTopLevelWindows.First()->Data();
 930     else
 931         return NULL;
 932 }
 933
 934 int wxApp::GetComCtl32Version() const
 935 {
 936     // have we loaded COMCTL32 yet?
 937     HMODULE theModule = ::GetModuleHandle("COMCTL32");
 938     int version = 0;
 939
 940     // if so, then we can check for the version
 941     if (theModule)
 942     {
 943         // InitCommonControlsEx is unique to 4.7 and later
 944         FARPROC theProc = ::GetProcAddress(theModule, "InitCommonControlsEx");
 945
 946         if (! theProc)
 947         {                    // not found, must be 4.00
 948       version = 400;
 949         }
 950         else
 951         {
 952       // The following symbol are unique to 4.71
 953       //   DllInstall
 954       //   FlatSB_EnableScrollBar FlatSB_GetScrollInfo FlatSB_GetScrollPos
 955       //   FlatSB_GetScrollProp FlatSB_GetScrollRange FlatSB_SetScrollInfo
 956       //   FlatSB_SetScrollPos FlatSB_SetScrollProp FlatSB_SetScrollRange
 957       //   FlatSB_ShowScrollBar
 958       //   _DrawIndirectImageList _DuplicateImageList
 959       //   InitializeFlatSB
 960       //   UninitializeFlatSB
 961       // we could check for any of these - I chose DllInstall
 962       FARPROC theProc = ::GetProcAddress(theModule, "DllInstall");
 963       if (! theProc)
 964       {
 965         // not found, must be 4.70
 966         version = 470;
 967       }
 968       else
 969       {                         // found, must be 4.71
 970         version = 471;
 971       }
 972         }
 973     }
 974     return version;
 975 }
 976
 977 void wxExit()
 978 {
 979   wxApp::CleanUp();
 980   FatalAppExit(0, "Fatal error: exiting");
 981 }
 982
 983 // Yield to incoming messages
 984 bool wxYield()
 985 {
 986   MSG msg;
 987   // We want to go back to the main message loop
 988   // if we see a WM_QUIT. (?)
 989   while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) && msg.message != WM_QUIT)
 990   {
 991     if (!wxTheApp->DoMessage())
 992       break;
 993   }
 994
 995   return TRUE;
 996 }
 997
 998 HINSTANCE wxGetInstance()
 999 {
1000   return wxhInstance;
1001 }
1002
1003 // For some reason, with MSVC++ 1.5, WinMain isn't linked in properly
1004 // if in a separate file. So include it here to ensure it's linked.
1005 #if (defined(_MSC_VER) && !defined(__WIN32__)) || defined(__GNUWIN32__)
1006   #include "main.cpp"
1007 #endif