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