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