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