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   #include "wx/intl.h"
  37   #include "wx/dynarray.h"
  38 #endif
  39
  40 #include "wx/msw/private.h"
  41 #include "wx/log.h"
  42 #include "wx/module.h"
  43
  44 #if wxUSE_THREADS
  45     #include "wx/thread.h"
  46
  47     // define the array of MSG strutures
  48     WX_DECLARE_OBJARRAY(MSG, wxMsgArray);
  49
  50     #include "wx/arrimpl.cpp"
  51
  52     WX_DEFINE_OBJARRAY(wxMsgArray);
  53 #endif // wxUSE_THREADS
  54
  55 #if wxUSE_WX_RESOURCES
  56   #include "wx/resource.h"
  57 #endif
  58
  59 // To UG: there's no point in putting this #if here
  60 // if you don't do the same for the Ole calls further down.
  61 // Also, OLE is used not just for drag and drop (it's used by automatn.cpp).
  62 // #if wxUSE_DRAG_AND_DROP
  63 #if !defined(__GNUWIN32__) && !defined(__SC__) && !defined(__SALFORDC__)
  64 #include <ole2.h>
  65 #endif
  66
  67 // #endif
  68
  69 #include <string.h>
  70 #include <ctype.h>
  71
  72 #if (defined(__WIN95__) && !defined(__GNUWIN32__)) || defined(__TWIN32__)
  73   #include <commctrl.h>
  74 #endif
  75
  76 // use debug CRT functions for memory leak detections in VC++ if we're not
  77 // using wxWindows own methods
  78 #if defined(__WXDEBUG__) && defined(_MSC_VER) && !wxUSE_GLOBAL_MEMORY_OPERATORS && !defined(__NO_VC_CRTDBG__)
  79     #define wxUSE_VC_CRTDBG
  80 #else
  81     #undef wxUSE_VC_CRTDBG
  82 #endif
  83
  84 #ifdef wxUSE_VC_CRTDBG
  85   // VC++ uses this macro as debug/release mode indicator
  86   #ifndef _DEBUG
  87     #define _DEBUG
  88   #endif
  89
  90   /* Need to undef new if including crtdbg.h */
  91   #ifdef new
  92     #undef new
  93   #endif
  94
  95   #include <crtdbg.h>
  96
  97   #if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS
  98     #define new new(__FILE__,__LINE__)
  99   #endif
 100 #endif // wxUSE_VC_CRTDBG
 101
 102 extern char *wxBuffer;
 103 extern char *wxOsVersion;
 104 extern wxList *wxWinHandleList;
 105 extern wxList WXDLLEXPORT wxPendingDelete;
 106 extern void wxSetKeyboardHook(bool doIt);
 107 extern wxCursor *g_globalCursor;
 108
 109 HINSTANCE wxhInstance = 0;
 110 static MSG s_currentMsg;
 111 wxApp *wxTheApp = NULL;
 112
 113 // @@ why not const? and not static?
 114 char wxFrameClassName[]         = "wxFrameClass";
 115 char wxMDIFrameClassName[]      = "wxMDIFrameClass";
 116 char wxMDIChildFrameClassName[] = "wxMDIChildFrameClass";
 117 char wxPanelClassName[]         = "wxPanelClass";
 118 char wxCanvasClassName[]        = "wxCanvasClass";
 119
 120 HICON wxSTD_FRAME_ICON = (HICON) NULL;
 121 HICON wxSTD_MDICHILDFRAME_ICON = (HICON) NULL;
 122 HICON wxSTD_MDIPARENTFRAME_ICON = (HICON) NULL;
 123
 124 HICON wxDEFAULT_FRAME_ICON = (HICON) NULL;
 125 HICON wxDEFAULT_MDICHILDFRAME_ICON = (HICON) NULL;
 126 HICON wxDEFAULT_MDIPARENTFRAME_ICON = (HICON) NULL;
 127
 128 HBRUSH wxDisableButtonBrush = (HBRUSH) 0;
 129
 130 LRESULT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM);
 131
 132 #if !USE_SHARED_LIBRARY
 133   IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 134
 135   BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 136       EVT_IDLE(wxApp::OnIdle)
 137       EVT_END_SESSION(wxApp::OnEndSession)
 138       EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 139   END_EVENT_TABLE()
 140 #endif
 141
 142 long wxApp::sm_lastMessageTime = 0;
 143
 144 #if defined(__WIN95__) && !defined(__TWIN32__)
 145 #define wxUSE_RICHEDIT 1
 146 #else
 147 #define wxUSE_RICHEDIT 0
 148 #endif
 149
 150 #if wxUSE_RICHEDIT
 151   static HINSTANCE gs_hRichEdit = (HINSTANCE) NULL;
 152 #endif
 153
 154 //// Initialize
 155
 156 bool wxApp::Initialize()
 157 {
 158     // Some people may wish to use this, but
 159     // probably it shouldn't be here by default.
 160 #ifdef __WXDEBUG__
 161 //    wxRedirectIOToConsole();
 162 #endif
 163
 164     wxBuffer = new char[1500];
 165
 166 #ifdef wxUSE_VC_CRTDBG
 167     // do check for memory leaks on program exit
 168     // (another useful flag is _CRTDBG_DELAY_FREE_MEM_DF which doesn't free
 169     //  deallocated memory which may be used to simulate low-memory condition)
 170     _CrtSetDbgFlag(_CrtSetDbgFlag(_CRTDBG_REPORT_FLAG) | _CRTDBG_LEAK_CHECK_DF);
 171 #endif // debug build under MS VC++
 172
 173     wxClassInfo::InitializeClasses();
 174
 175 #if wxUSE_RESOURCES
 176     wxGetResource("wxWindows", "OsVersion", &wxOsVersion);
 177 #endif
 178
 179     wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
 180     wxTheColourDatabase->Initialize();
 181
 182     wxInitializeStockLists();
 183     wxInitializeStockObjects();
 184
 185 #if wxUSE_WX_RESOURCES
 186     wxInitializeResourceSystem();
 187 #endif
 188
 189     wxBitmap::InitStandardHandlers();
 190
 191 #if defined(__WIN95__)
 192     InitCommonControls();
 193
 194 #if wxUSE_RICHEDIT
 195     gs_hRichEdit = LoadLibrary("RICHED32.DLL");
 196
 197     if (gs_hRichEdit == (HINSTANCE) NULL)
 198     {
 199       wxMessageBox("Could not initialise Rich Edit DLL");
 200     }
 201 #endif
 202
 203 #endif
 204
 205     int iMsg = 96;
 206
 207    // for OLE, enlarge message queue to be as large as possible
 208    while (!SetMessageQueue(iMsg) && (iMsg -= 8));
 209
 210 /*
 211     DWORD dwOleVer;
 212     dwOleVer = CoBuildVersion();
 213
 214     // check the OLE library version
 215     if (rmm != HIWORD(dwOleVer))
 216     {
 217         wxMessageBox("Incorrect version of OLE libraries.");
 218         return FALSE;
 219     }
 220 */
 221
 222 #if !defined(__GNUWIN32__) && !defined(__SC__) && !defined(__SALFORDC__)
 223     // we need to initialize OLE library
 224     if ( FAILED(::OleInitialize(NULL)) )
 225       wxFatalError(_("Cannot initialize OLE"));
 226 #endif
 227
 228 #if CTL3D
 229     if (!Ctl3dRegister(wxhInstance))
 230       wxFatalError("Cannot register CTL3D");
 231
 232     Ctl3dAutoSubclass(wxhInstance);
 233 #endif
 234
 235     g_globalCursor = new wxCursor;
 236
 237     wxSTD_FRAME_ICON = LoadIcon(wxhInstance, "wxSTD_FRAME");
 238     wxSTD_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDIPARENTFRAME");
 239     wxSTD_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDICHILDFRAME");
 240
 241     wxDEFAULT_FRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_FRAME");
 242     wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDIPARENTFRAME");
 243     wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDICHILDFRAME");
 244
 245     RegisterWindowClasses();
 246
 247     // Create the brush for disabling bitmap buttons
 248
 249     LOGBRUSH lb ;
 250     lb.lbStyle = BS_PATTERN;
 251     lb.lbHatch = (int)LoadBitmap( wxhInstance, "wxDISABLE_BUTTON_BITMAP" ) ;
 252     wxDisableButtonBrush = ::CreateBrushIndirect( & lb ) ;
 253     ::DeleteObject( (HGDIOBJ)lb.lbHatch ) ;
 254
 255 #if wxUSE_PENWINDOWS
 256     wxRegisterPenWin();
 257 #endif
 258
 259     wxWinHandleList = new wxList(wxKEY_INTEGER);
 260
 261     // This is to foil optimizations in Visual C++ that
 262     // throw out dummy.obj.
 263     // PLEASE DO NOT ALTER THIS.
 264 #if defined(_MSC_VER) && !defined(WXMAKINGDLL)
 265     extern char wxDummyChar;
 266     if (wxDummyChar) wxDummyChar++;
 267 #endif
 268
 269     wxSetKeyboardHook(TRUE);
 270
 271     wxModule::RegisterModules();
 272     if (!wxModule::InitializeModules())
 273         return FALSE;
 274     return TRUE;
 275 }
 276
 277 //// RegisterWindowClasses
 278
 279 bool wxApp::RegisterWindowClasses()
 280 {
 281 ///////////////////////////////////////////////////////////////////////
 282 // Register the frame window class.
 283   WNDCLASS wndclass;   // Structure used to register Windows class.
 284
 285   wndclass.style         = CS_HREDRAW | CS_VREDRAW;
 286   wndclass.lpfnWndProc   = (WNDPROC)wxWndProc;
 287   wndclass.cbClsExtra    = 0;
 288   wndclass.cbWndExtra    = sizeof( DWORD ); // was 4
 289   wndclass.hInstance     = wxhInstance;
 290   wndclass.hIcon         = (HICON) NULL;        // wxSTD_FRAME_ICON;
 291   wndclass.hCursor       = LoadCursor( (HINSTANCE) NULL, IDC_ARROW );
 292   wndclass.hbrBackground =  (HBRUSH)(COLOR_APPWORKSPACE+1) ;
 293 //  wndclass.hbrBackground = GetStockObject( WHITE_BRUSH );
 294   wndclass.lpszMenuName  = NULL;
 295 #ifdef _MULTIPLE_INSTANCES
 296   sprintf( wxFrameClassName,"wxFrameClass%d", wxhInstance );
 297 #endif
 298   wndclass.lpszClassName = wxFrameClassName;
 299
 300   if (!RegisterClass( &wndclass ))
 301   {
 302     // wxFatalError("Can't register Frame Window class");
 303   }
 304
 305 ///////////////////////////////////////////////////////////////////////
 306 // Register the MDI frame window class.
 307   WNDCLASS wndclass1;   // Structure used to register Windows class.
 308
 309   wndclass1.style         = CS_HREDRAW | CS_VREDRAW;
 310   wndclass1.lpfnWndProc   = (WNDPROC)wxWndProc;
 311   wndclass1.cbClsExtra    = 0;
 312   wndclass1.cbWndExtra    = sizeof( DWORD ); // was 4
 313   wndclass1.hInstance     = wxhInstance;
 314   wndclass1.hIcon         = (HICON) NULL; // wxSTD_MDIPARENTFRAME_ICON;
 315   wndclass1.hCursor       = LoadCursor( (HINSTANCE) NULL, IDC_ARROW );
 316 //  wndclass1.hbrBackground =  (HBRUSH)(COLOR_APPWORKSPACE+1) ;
 317   wndclass1.hbrBackground = (HBRUSH) NULL;
 318   wndclass1.lpszMenuName  = NULL;
 319
 320   wndclass1.lpszClassName = wxMDIFrameClassName;
 321   if (!RegisterClass( &wndclass1 ))
 322   {
 323 //    wxFatalError("Can't register MDI Frame window class");
 324 //  return FALSE;
 325   }
 326
 327 ///////////////////////////////////////////////////////////////////////
 328 // Register the MDI child frame window class.
 329   WNDCLASS wndclass4;   // Structure used to register Windows class.
 330
 331   wndclass4.style         = CS_HREDRAW | CS_VREDRAW;
 332   wndclass4.lpfnWndProc   = (WNDPROC)wxWndProc;
 333   wndclass4.cbClsExtra    = 0;
 334   wndclass4.cbWndExtra    = sizeof( DWORD ); // was 4
 335   wndclass4.hInstance     = wxhInstance;
 336   wndclass4.hIcon         = (HICON) NULL;       // wxSTD_MDICHILDFRAME_ICON;
 337   wndclass4.hCursor       = LoadCursor( (HINSTANCE) NULL, IDC_ARROW );
 338   // TODO: perhaps this should be NULL so that Windows doesn't
 339   // paint the background itself (would OnEraseBackground duplicate
 340   // this?)
 341   wndclass4.hbrBackground =  (HBRUSH)(COLOR_WINDOW+1) ;
 342 //  wndclass4.hbrBackground = NULL;
 343   wndclass4.lpszMenuName  = NULL;
 344   wndclass4.lpszClassName = wxMDIChildFrameClassName;
 345
 346   if (!RegisterClass( &wndclass4 ))
 347   {
 348 //   wxFatalError("Can't register MDI child frame window class");
 349 //   return FALSE;
 350   }
 351
 352 ///////////////////////////////////////////////////////////////////////
 353 // Register the panel window class.
 354   WNDCLASS wndclass2;   // Structure used to register Windows class.
 355   memset(&wndclass2, 0, sizeof(WNDCLASS));   // start with NULL defaults
 356   // Use CS_OWNDC to avoid messing about restoring the context
 357   // for every graphic operation.
 358   wndclass2.style         = CS_HREDRAW | CS_VREDRAW;
 359   wndclass2.lpfnWndProc   = (WNDPROC)wxWndProc;
 360   wndclass2.cbClsExtra    = 0;
 361   wndclass2.cbWndExtra    = sizeof( DWORD ); // was 4
 362   wndclass2.hInstance     = wxhInstance;
 363   wndclass2.hIcon         = (HICON) NULL;
 364   wndclass2.hCursor       = (HCURSOR) NULL;
 365 //  wndclass2.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1) ;
 366   wndclass2.hbrBackground = (HBRUSH) GetStockObject( LTGRAY_BRUSH );
 367   wndclass2.lpszMenuName  = NULL;
 368   wndclass2.lpszClassName = wxPanelClassName;
 369   if (!RegisterClass( &wndclass2 ))
 370   {
 371 //   wxFatalError("Can't register Panel Window class");
 372 //   return FALSE;
 373   }
 374
 375 ///////////////////////////////////////////////////////////////////////
 376 // Register the canvas and textsubwindow class name
 377   WNDCLASS wndclass3;   // Structure used to register Windows class.
 378   memset(&wndclass3, 0, sizeof(WNDCLASS));   // start with NULL defaults
 379   // Use CS_OWNDC to avoid messing about restoring the context
 380   // for every graphic operation.
 381 //  wndclass3.style         = CS_HREDRAW | CS_VREDRAW | CS_OWNDC | CS_DBLCLKS ;
 382   // wxWin 2.0
 383   wndclass3.style         = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ;
 384   wndclass3.lpfnWndProc   = (WNDPROC)wxWndProc;
 385   wndclass3.cbClsExtra    = 0;
 386   wndclass3.cbWndExtra    = sizeof( DWORD ); // was 4
 387   wndclass3.hInstance     = wxhInstance;
 388   wndclass3.hIcon         = (HICON) NULL;
 389   wndclass3.hCursor       = (HCURSOR) NULL;
 390 //  wndclass3.hbrBackground = (HBRUSH)(COLOR_WINDOW+1) ;
 391   wndclass3.hbrBackground = (HBRUSH) NULL;
 392   wndclass3.lpszMenuName  = NULL;
 393   wndclass3.lpszClassName = wxCanvasClassName;
 394   if (!RegisterClass( &wndclass3))
 395   {
 396 //   wxFatalError("Can't register Canvas class");
 397 //   return FALSE;
 398   }
 399
 400   return TRUE;
 401 }
 402
 403 //// Convert Windows to argc, argv style
 404
 405 void wxApp::ConvertToStandardCommandArgs(char* lpCmdLine)
 406 {
 407     wxStringList args;
 408
 409     wxString cmdLine(lpCmdLine);
 410     int count = 0;
 411
 412     // Get application name
 413     char name[260]; // 260 is MAX_PATH value from windef.h
 414     ::GetModuleFileName(wxhInstance, name, WXSIZEOF(name));
 415
 416     // GNUWIN32 already fills in the first arg with the application name.
 417 #if !defined(__GNUWIN32__)
 418     args.Add(name);
 419     count ++;
 420 #endif
 421
 422     strcpy(name, wxFileNameFromPath(name));
 423     wxStripExtension(name);
 424     wxTheApp->SetAppName(name);
 425
 426     // Break up string
 427     // Treat strings enclosed in double-quotes as single arguments
 428     int i = 0;
 429     int len = cmdLine.Length();
 430     while (i < len)
 431     {
 432         // Skip whitespace
 433         while ((i < len) && isspace(cmdLine.GetChar(i)))
 434             i ++;
 435
 436         if (i < len)
 437         {
 438             if (cmdLine.GetChar(i) == '"') // We found the start of a string
 439             {
 440                 i ++;
 441                 int first = i;
 442                 while ((i < len) && (cmdLine.GetChar(i) != '"'))
 443                     i ++;
 444
 445                 wxString arg(cmdLine.Mid(first, (i - first)));
 446
 447                 args.Add(arg);
 448                 count ++;
 449
 450                 if (i < len)
 451                     i ++; // Skip past 2nd quote
 452             }
 453             else // Unquoted argument
 454             {
 455                 int first = i;
 456                 while ((i < len) && !isspace(cmdLine.GetChar(i)))
 457                     i ++;
 458
 459                 wxString arg(cmdLine.Mid(first, (i - first)));
 460
 461                 args.Add(arg);
 462                 count ++;
 463             }
 464         }
 465     }
 466
 467     wxTheApp->argv = new char*[count + 1];
 468     for (i = 0; i < count; i++)
 469     {
 470         wxString arg(args[i]);
 471         wxTheApp->argv[i] = copystring((const char*)arg);
 472     }
 473     wxTheApp->argv[count] = NULL; // argv[] is a NULL-terminated list
 474     wxTheApp->argc = count;
 475 }
 476
 477 //// Cleans up any wxWindows internal structures left lying around
 478
 479 void wxApp::CleanUp()
 480 {
 481   //// COMMON CLEANUP
 482   wxModule::CleanUpModules();
 483
 484 #if wxUSE_WX_RESOURCES
 485   wxCleanUpResourceSystem();
 486
 487 //  wxDefaultResourceTable->ClearTable();
 488 #endif
 489
 490   // Indicate that the cursor can be freed,
 491   // so that cursor won't be deleted by deleting
 492   // the bitmap list before g_globalCursor goes out
 493   // of scope (double deletion of the cursor).
 494   wxSetCursor(wxNullCursor);
 495   delete g_globalCursor;
 496
 497   wxDeleteStockObjects() ;
 498
 499   // Destroy all GDI lists, etc.
 500   wxDeleteStockLists();
 501
 502   delete wxTheColourDatabase;
 503   wxTheColourDatabase = NULL;
 504
 505   wxBitmap::CleanUpHandlers();
 506
 507   delete[] wxBuffer;
 508   wxBuffer = NULL;
 509
 510   //// WINDOWS-SPECIFIC CLEANUP
 511
 512   wxSetKeyboardHook(FALSE);
 513
 514 #ifdef __WIN95__
 515
 516 #if wxUSE_RICHEDIT
 517   if (gs_hRichEdit != (HINSTANCE) NULL)
 518     FreeLibrary(gs_hRichEdit);
 519 #endif
 520
 521 #endif
 522
 523 #if wxUSE_PENWINDOWS
 524   wxCleanUpPenWin();
 525 #endif
 526
 527   if (wxSTD_FRAME_ICON)
 528     DestroyIcon(wxSTD_FRAME_ICON);
 529   if (wxSTD_MDICHILDFRAME_ICON)
 530     DestroyIcon(wxSTD_MDICHILDFRAME_ICON);
 531   if (wxSTD_MDIPARENTFRAME_ICON)
 532     DestroyIcon(wxSTD_MDIPARENTFRAME_ICON);
 533
 534   if (wxDEFAULT_FRAME_ICON)
 535     DestroyIcon(wxDEFAULT_FRAME_ICON);
 536   if (wxDEFAULT_MDICHILDFRAME_ICON)
 537     DestroyIcon(wxDEFAULT_MDICHILDFRAME_ICON);
 538   if (wxDEFAULT_MDIPARENTFRAME_ICON)
 539     DestroyIcon(wxDEFAULT_MDIPARENTFRAME_ICON);
 540
 541   if ( wxDisableButtonBrush )
 542     ::DeleteObject( wxDisableButtonBrush ) ;
 543
 544 #if !defined(__GNUWIN32__) && !defined(__SC__) && !defined(__SALFORDC__)
 545   ::OleUninitialize();
 546 #endif
 547
 548 #if CTL3D
 549   Ctl3dUnregister(wxhInstance);
 550 #endif
 551
 552   if (wxWinHandleList)
 553     delete wxWinHandleList ;
 554
 555   wxClassInfo::CleanUpClasses();
 556
 557   delete wxTheApp;
 558   wxTheApp = NULL;
 559
 560 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 561   // At this point we want to check if there are any memory
 562   // blocks that aren't part of the wxDebugContext itself,
 563   // as a special case. Then when dumping we need to ignore
 564   // wxDebugContext, too.
 565   if (wxDebugContext::CountObjectsLeft() > 0)
 566   {
 567       wxLogDebug("There were memory leaks.");
 568       wxDebugContext::Dump();
 569       wxDebugContext::PrintStatistics();
 570   }
 571 //  wxDebugContext::SetStream(NULL, NULL);
 572 #endif
 573
 574   // do it as the very last thing because everything else can log messages
 575   wxLog::DontCreateOnDemand();
 576   delete wxLog::SetActiveTarget(NULL);
 577 }
 578
 579 #if !defined(_WINDLL) || (defined(_WINDLL) && defined(WXMAKINGDLL))
 580
 581 // temporarily disable this warning
 582 #ifdef _MSC_VER
 583     #pragma warning(disable: 4715) // not all control paths return a value
 584 #endif // Visual C++
 585
 586 //// Main wxWindows entry point
 587 int wxEntry(WXHINSTANCE hInstance,
 588             WXHINSTANCE WXUNUSED(hPrevInstance),
 589             char *lpCmdLine,
 590             int nCmdShow,
 591             bool enterLoop)
 592 {
 593   // take everything into a try-except block in release build
 594   // FIXME other compilers must support Win32 SEH (structured exception
 595   //       handling) too, just find the appropriate keyword in their docs!
 596   //       Please note that it's _not_ the same as C++ exceptions!
 597 #if !defined(__WXDEBUG__) && defined(_MSC_VER)
 598     #define CATCH_PROGRAM_EXCEPTIONS
 599
 600   __try {
 601 #else
 602     #undef  CATCH_PROGRAM_EXCEPTIONS
 603 #endif
 604
 605   wxhInstance = (HINSTANCE) hInstance;
 606
 607   if (!wxApp::Initialize())
 608     return 0;
 609
 610   // create the application object or ensure that one already exists
 611   if (!wxTheApp)
 612   {
 613     // The app may have declared a global application object, but we recommend
 614     // the IMPLEMENT_APP macro is used instead, which sets an initializer
 615     // function for delayed, dynamic app object construction.
 616     wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
 617                  "No initializer - use IMPLEMENT_APP macro." );
 618
 619     wxTheApp = (*wxApp::GetInitializerFunction()) ();
 620   }
 621
 622   wxCHECK_MSG( wxTheApp, 0, "You have to define an instance of wxApp!" );
 623
 624   // save the WinMain() parameters
 625   wxTheApp->ConvertToStandardCommandArgs(lpCmdLine);
 626   wxTheApp->m_nCmdShow = nCmdShow;
 627
 628   // GUI-specific initialisation. In fact on Windows we don't have any,
 629   // but this call is provided for compatibility across platforms.
 630   wxTheApp->OnInitGui() ;
 631
 632   int retValue = 0;
 633
 634   if ( wxTheApp->OnInit() )
 635   {
 636       if ( enterLoop )
 637       {
 638           retValue = wxTheApp->OnRun();
 639       }
 640   }
 641   //else: app initialization failed, so we skipped OnRun()
 642
 643   wxWindow *topWindow = wxTheApp->GetTopWindow();
 644   if ( topWindow )
 645   {
 646       // Forcibly delete the window.
 647       if ( topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
 648            topWindow->IsKindOf(CLASSINFO(wxDialog)) )
 649       {
 650           topWindow->Close(TRUE);
 651           wxTheApp->DeletePendingObjects();
 652       }
 653       else
 654       {
 655           delete topWindow;
 656           wxTheApp->SetTopWindow(NULL);
 657       }
 658   }
 659
 660   wxTheApp->OnExit();
 661
 662   // flush the logged messages if any
 663   wxLog *pLog = wxLog::GetActiveTarget();
 664   if ( pLog != NULL && pLog->HasPendingMessages() )
 665     pLog->Flush();
 666
 667
 668   wxApp::CleanUp();
 669
 670   return retValue;
 671
 672 #ifdef CATCH_PROGRAM_EXCEPTIONS
 673   }
 674   __except ( EXCEPTION_EXECUTE_HANDLER ) {
 675     /*
 676     if ( wxTheApp )
 677       wxTheApp->OnFatalException();
 678     */
 679
 680     ::ExitProcess(3); // the same exit code as abort()
 681
 682     // NOTREACHED
 683   }
 684 #endif // CATCH_PROGRAM_EXCEPTIONS
 685 }
 686
 687 // restore warning state
 688 #ifdef _MSC_VER
 689     #pragma warning(default: 4715) // not all control paths return a value
 690 #endif // Visual C++
 691
 692 #else /*  _WINDLL  */
 693
 694 //// Entry point for DLLs
 695
 696 int wxEntry(WXHINSTANCE hInstance)
 697 {
 698   wxhInstance = (HINSTANCE) hInstance;
 699   wxApp::Initialize();
 700
 701   // The app may have declared a global application object, but we recommend
 702   // the IMPLEMENT_APP macro is used instead, which sets an initializer function
 703   // for delayed, dynamic app object construction.
 704
 705   if (!wxTheApp)
 706   {
 707     if (!wxApp::GetInitializerFunction())
 708     {
 709       MessageBox(NULL, "No initializer - use IMPLEMENT_APP macro.", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
 710     return 0;
 711     }
 712
 713     wxTheApp = (* wxApp::GetInitializerFunction()) ();
 714   }
 715
 716   if (!wxTheApp) {
 717     MessageBox(NULL, "You have to define an instance of wxApp!", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK);
 718     return 0;
 719   }
 720
 721   wxTheApp->argc = 0;
 722   wxTheApp->argv = NULL;
 723
 724   wxTheApp->OnInitGui();
 725
 726   wxTheApp->OnInit();
 727
 728   if (wxTheApp->GetTopWindow() && wxTheApp->GetTopWindow()->GetHWND()) {
 729     wxTheApp->GetTopWindow()->Show(TRUE);
 730   }
 731
 732   return 1;
 733 }
 734 #endif // _WINDLL
 735
 736 //// Static member initialization
 737
 738 wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL;
 739
 740 wxApp::wxApp()
 741 {
 742   m_topWindow = NULL;
 743   wxTheApp = this;
 744   m_className = "";
 745   m_wantDebugOutput = TRUE ;
 746   m_appName = "";
 747   argc = 0;
 748   argv = NULL;
 749 #ifdef __WXMSW__
 750   m_printMode = wxPRINT_WINDOWS;
 751 #else
 752   m_printMode = wxPRINT_POSTSCRIPT;
 753 #endif
 754   m_exitOnFrameDelete = TRUE;
 755   m_auto3D = TRUE;
 756 }
 757
 758 wxApp::~wxApp()
 759 {
 760   // Delete command-line args
 761   int i;
 762   for (i = 0; i < argc; i++)
 763   {
 764     delete[] argv[i];
 765   }
 766   delete[] argv;
 767 }
 768
 769 bool wxApp::Initialized()
 770 {
 771 #ifndef _WINDLL
 772   if (GetTopWindow())
 773     return TRUE;
 774   else
 775     return FALSE;
 776 #endif
 777 #ifdef _WINDLL // Assume initialized if DLL (no way of telling)
 778   return TRUE;
 779 #endif
 780 }
 781
 782 /*
 783  * Get and process a message, returning FALSE if WM_QUIT
 784  * received (and also set the flag telling the app to exit the main loop)
 785  *
 786  */
 787 bool wxApp::DoMessage()
 788 {
 789     BOOL rc = ::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0);
 790     if ( rc == 0 )
 791     {
 792         // got WM_QUIT
 793         m_keepGoing = FALSE;
 794
 795         return FALSE;
 796     }
 797     else if ( rc == -1 )
 798     {
 799         // should never happen, but let's test for it nevertheless
 800         wxLogLastError("GetMessage");
 801     }
 802     else
 803     {
 804 #if wxUSE_THREADS
 805         wxASSERT_MSG( wxThread::IsMain(),
 806                       "only the main thread can process Windows messages" );
 807
 808         static bool s_hadGuiLock = TRUE;
 809         static wxMsgArray s_aSavedMessages;
 810
 811         // if a secondary thread owns is doing GUI calls, save all messages for
 812         // later processing - we can't process them right now because it will
 813         // lead to recursive library calls (and we're not reentrant)
 814         if ( !wxGuiOwnedByMainThread() )
 815         {
 816             s_hadGuiLock = FALSE;
 817
 818             // leave out WM_COMMAND messages: too dangerous, sometimes
 819             // the message will be processed twice
 820             if ( !wxIsWaitingForThread() ||
 821                  s_currentMsg.message != WM_COMMAND )
 822             {
 823                 s_aSavedMessages.Add(s_currentMsg);
 824             }
 825
 826             return TRUE;
 827         }
 828         else
 829         {
 830             // have we just regained the GUI lock? if so, post all of the saved
 831             // messages
 832             //
 833             // FIXME of course, it's not _exactly_ the same as processing the
 834             //       messages normally - expect some things to break...
 835             if ( !s_hadGuiLock )
 836             {
 837                 s_hadGuiLock = TRUE;
 838
 839                 size_t count = s_aSavedMessages.Count();
 840                 for ( size_t n = 0; n < count; n++ )
 841                 {
 842                     MSG& msg = s_aSavedMessages[n];
 843
 844                     if ( !ProcessMessage((WXMSG *)&msg) )
 845                     {
 846                         ::TranslateMessage(&msg);
 847                         ::DispatchMessage(&msg);
 848                     }
 849                 }
 850
 851                 s_aSavedMessages.Empty();
 852             }
 853         }
 854 #endif // wxUSE_THREADS
 855
 856         // Process the message
 857         if ( !ProcessMessage((WXMSG *)&s_currentMsg) )
 858         {
 859             ::TranslateMessage(&s_currentMsg);
 860             wxApp::sm_lastMessageTime = s_currentMsg.time; /* MATTHEW: timeStamp impl. */
 861             ::DispatchMessage(&s_currentMsg);
 862         }
 863     }
 864
 865     return TRUE;
 866 }
 867
 868 /*
 869  * Keep trying to process messages until WM_QUIT
 870  * received.
 871  *
 872  * If there are messages to be processed, they will all be
 873  * processed and OnIdle will not be called.
 874  * When there are no more messages, OnIdle is called.
 875  * If OnIdle requests more time,
 876  * it will be repeatedly called so long as there are no pending messages.
 877  * A 'feature' of this is that once OnIdle has decided that no more processing
 878  * is required, then it won't get processing time until further messages
 879  * are processed (it'll sit in DoMessage).
 880  */
 881
 882 int wxApp::MainLoop()
 883 {
 884   m_keepGoing = TRUE;
 885
 886   while ( m_keepGoing )
 887   {
 888     #if wxUSE_THREADS
 889         wxMutexGuiLeaveOrEnter();
 890     #endif // wxUSE_THREADS
 891
 892     while ( !::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) &&
 893             ProcessIdle() )
 894     {
 895     }
 896
 897     DoMessage();
 898   }
 899
 900   return s_currentMsg.wParam;
 901 }
 902
 903 // Returns TRUE if more time is needed.
 904 bool wxApp::ProcessIdle()
 905 {
 906     wxIdleEvent event;
 907     event.SetEventObject(this);
 908     ProcessEvent(event);
 909
 910     return event.MoreRequested();
 911 }
 912
 913 void wxApp::ExitMainLoop()
 914 {
 915   m_keepGoing = FALSE;
 916 }
 917
 918 bool wxApp::Pending()
 919 {
 920   return (::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0) ;
 921 }
 922
 923 void wxApp::Dispatch()
 924 {
 925     DoMessage();
 926 }
 927
 928 /*
 929  * Give all windows a chance to preprocess
 930  * the message. Some may have accelerator tables, or have
 931  * MDI complications.
 932  */
 933 bool wxApp::ProcessMessage(WXMSG *Msg)
 934 {
 935   MSG *msg = (MSG *)Msg;
 936
 937   HWND hWnd;
 938
 939   // Try translations first; find the youngest window with
 940   // a translation table.
 941   for (hWnd = msg->hwnd; hWnd != (HWND) NULL; hWnd = ::GetParent(hWnd))
 942   {
 943     wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd);
 944     if (wnd)
 945     {
 946        if (wnd->MSWTranslateMessage(Msg))
 947          return TRUE;
 948     }
 949   }
 950
 951   // Anyone for a non-translation message? Try youngest descendants first.
 952   for (hWnd = msg->hwnd; hWnd != (HWND) NULL; hWnd = ::GetParent(hWnd))
 953   {
 954     wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd);
 955     if (wnd)
 956     {
 957        if (wnd->MSWProcessMessage(Msg))
 958          return TRUE;
 959     }
 960   }
 961   return FALSE;
 962 }
 963
 964 void wxApp::OnIdle(wxIdleEvent& event)
 965 {
 966     static bool s_inOnIdle = FALSE;
 967
 968     // Avoid recursion (via ProcessEvent default case)
 969     if ( s_inOnIdle )
 970         return;
 971
 972     s_inOnIdle = TRUE;
 973
 974     // 'Garbage' collection of windows deleted with Close().
 975     DeletePendingObjects();
 976
 977     // flush the logged messages if any
 978     wxLog *pLog = wxLog::GetActiveTarget();
 979     if ( pLog != NULL && pLog->HasPendingMessages() )
 980         pLog->Flush();
 981
 982     // Send OnIdle events to all windows
 983     if ( SendIdleEvents() )
 984     {
 985         // SendIdleEvents() returns TRUE if at least one window requested more
 986         // idle events
 987         event.RequestMore(TRUE);
 988     }
 989
 990     s_inOnIdle = FALSE;
 991 }
 992
 993 // Send idle event to all top-level windows
 994 bool wxApp::SendIdleEvents()
 995 {
 996     bool needMore = FALSE;
 997     wxNode* node = wxTopLevelWindows.First();
 998     while (node)
 999     {
1000         wxWindow* win = (wxWindow*) node->Data();
1001         if (SendIdleEvents(win))
1002             needMore = TRUE;
1003
1004         node = node->Next();
1005     }
1006
1007     return needMore;
1008 }
1009
1010 // Send idle event to window and all subwindows
1011 bool wxApp::SendIdleEvents(wxWindow* win)
1012 {
1013   bool needMore = FALSE;
1014
1015   wxIdleEvent event;
1016   event.SetEventObject(win);
1017   win->GetEventHandler()->ProcessEvent(event);
1018
1019   if (event.MoreRequested())
1020     needMore = TRUE;
1021
1022   wxNode* node = win->GetChildren().First();
1023   while (node)
1024   {
1025     wxWindow* win = (wxWindow*) node->Data();
1026     if (SendIdleEvents(win))
1027       needMore = TRUE;
1028
1029     node = node->Next();
1030   }
1031   return needMore ;
1032 }
1033
1034 void wxApp::DeletePendingObjects()
1035 {
1036   wxNode *node = wxPendingDelete.First();
1037   while (node)
1038   {
1039     wxObject *obj = (wxObject *)node->Data();
1040
1041     delete obj;
1042
1043     if (wxPendingDelete.Member(obj))
1044       delete node;
1045
1046     // Deleting one object may have deleted other pending
1047     // objects, so start from beginning of list again.
1048     node = wxPendingDelete.First();
1049   }
1050 }
1051
1052 void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
1053 {
1054     if (GetTopWindow())
1055         GetTopWindow()->Close(TRUE);
1056 }
1057
1058 // Default behaviour: close the application with prompts. The
1059 // user can veto the close, and therefore the end session.
1060 void wxApp::OnQueryEndSession(wxCloseEvent& event)
1061 {
1062     if (GetTopWindow())
1063     {
1064         if (!GetTopWindow()->Close(!event.CanVeto()))
1065             event.Veto(TRUE);
1066     }
1067 }
1068
1069 wxLog* wxApp::CreateLogTarget()
1070 {
1071     return new wxLogGui;
1072 }
1073
1074 wxWindow* wxApp::GetTopWindow() const
1075 {
1076     if (m_topWindow)
1077         return m_topWindow;
1078     else if (wxTopLevelWindows.Number() > 0)
1079         return (wxWindow*) wxTopLevelWindows.First()->Data();
1080     else
1081         return NULL;
1082 }
1083
1084 int wxApp::GetComCtl32Version() const
1085 {
1086     // have we loaded COMCTL32 yet?
1087     HMODULE theModule = ::GetModuleHandle("COMCTL32");
1088     int version = 0;
1089
1090     // if so, then we can check for the version
1091     if (theModule)
1092     {
1093         // InitCommonControlsEx is unique to 4.7 and later
1094         FARPROC theProc = ::GetProcAddress(theModule, "InitCommonControlsEx");
1095
1096         if (! theProc)
1097         {                    // not found, must be 4.00
1098       version = 400;
1099         }
1100         else
1101         {
1102       // The following symbol are unique to 4.71
1103       //   DllInstall
1104       //   FlatSB_EnableScrollBar FlatSB_GetScrollInfo FlatSB_GetScrollPos
1105       //   FlatSB_GetScrollProp FlatSB_GetScrollRange FlatSB_SetScrollInfo
1106       //   FlatSB_SetScrollPos FlatSB_SetScrollProp FlatSB_SetScrollRange
1107       //   FlatSB_ShowScrollBar
1108       //   _DrawIndirectImageList _DuplicateImageList
1109       //   InitializeFlatSB
1110       //   UninitializeFlatSB
1111       // we could check for any of these - I chose DllInstall
1112       FARPROC theProc = ::GetProcAddress(theModule, "DllInstall");
1113       if (! theProc)
1114       {
1115         // not found, must be 4.70
1116         version = 470;
1117       }
1118       else
1119       {                         // found, must be 4.71
1120         version = 471;
1121       }
1122         }
1123     }
1124     return version;
1125 }
1126
1127 void wxExit()
1128 {
1129   wxApp::CleanUp();
1130   FatalAppExit(0, "Fatal error: exiting");
1131 }
1132
1133 // Yield to incoming messages
1134 bool wxYield()
1135 {
1136   MSG msg;
1137   // We want to go back to the main message loop
1138   // if we see a WM_QUIT. (?)
1139   while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) && msg.message != WM_QUIT)
1140   {
1141     if ( !wxTheApp->DoMessage() )
1142       break;
1143   }
1144
1145   return TRUE;
1146 }
1147
1148 HINSTANCE wxGetInstance()
1149 {
1150   return wxhInstance;
1151 }
1152
1153 // For some reason, with MSVC++ 1.5, WinMain isn't linked in properly
1154 // if in a separate file. So include it here to ensure it's linked.
1155 #if (defined(_MSC_VER) && !defined(__WIN32__)) || (defined(__GNUWIN32__) && !defined(__TWIN32__))
1156   #include "main.cpp"
1157 #endif