src/os2/app.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        app.cpp
   3 // Purpose:     wxApp
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/13/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifndef WX_PRECOMP
  16     #include "wx/frame.h"
  17     #include "wx/app.h"
  18     #include "wx/utils.h"
  19     #include "wx/gdicmn.h"
  20     #include "wx/pen.h"
  21     #include "wx/brush.h"
  22     #include "wx/cursor.h"
  23     #include "wx/icon.h"
  24     #include "wx/palette.h"
  25     #include "wx/dc.h"
  26     #include "wx/dialog.h"
  27     #include "wx/msgdlg.h"
  28     #include "wx/intl.h"
  29     #include "wx/dynarray.h"
  30 #   include "wx/wxchar.h"
  31 #   include "wx/icon.h"
  32 #endif
  33
  34 #include "wx/log.h"
  35 #include "wx/module.h"
  36
  37 #include "wx/os2/private.h"
  38
  39 #if wxUSE_THREADS
  40     #include "wx/thread.h"
  41
  42     // define the array of MSG strutures
  43 // TODO:    WX_DECLARE_OBJARRAY(MSG, wxMsgArray);
  44
  45     #include "wx/arrimpl.cpp"
  46
  47 // TODO:    WX_DEFINE_OBJARRAY(wxMsgArray);
  48 #endif // wxUSE_THREADS
  49
  50 #if wxUSE_WX_RESOURCES
  51     #include "wx/resource.h"
  52 #endif
  53
  54 #include <string.h>
  55 #include <ctype.h>
  56
  57 // ---------------------------------------------------------------------------
  58 // global variables
  59 // ---------------------------------------------------------------------------
  60
  61 extern wxChar *wxBuffer;
  62 extern wxChar *wxOsVersion;
  63 extern wxList *wxWinHandleList;
  64 extern wxList WXDLLEXPORT wxPendingDelete;
  65 #if wxUSE_THREADS
  66 extern wxList *wxPendingEvents;
  67 extern wxCriticalSection *wxPendingEventsLocker;
  68 #endif
  69 extern void wxSetKeyboardHook(bool doIt);
  70 extern wxCursor *g_globalCursor;
  71
  72 HINSTANCE wxhInstance = 0;
  73 // TODO: MSG s_currentMsg;
  74 wxApp *wxTheApp = NULL;
  75
  76 // FIXME why not const? and not static?
  77
  78 // NB: all "NoRedraw" classes must have the same names as the "normal" classes
  79 //     with NR suffix - wxWindow::OS2Create() supposes this
  80 wxChar wxFrameClassName[]         = wxT("wxFrameClass");
  81 wxChar wxFrameClassNameNoRedraw[] = wxT("wxFrameClassNR");
  82 wxChar wxMDIFrameClassName[]      = wxT("wxMDIFrameClass");
  83 wxChar wxMDIFrameClassNameNoRedraw[] = wxT("wxMDIFrameClassNR");
  84 wxChar wxMDIChildFrameClassName[] = wxT("wxMDIChildFrameClass");
  85 wxChar wxMDIChildFrameClassNameNoRedraw[] = wxT("wxMDIChildFrameClassNR");
  86 wxChar wxPanelClassName[]         = wxT("wxPanelClass");
  87 wxChar wxCanvasClassName[]        = wxT("wxCanvasClass");
  88
  89 HICON wxSTD_FRAME_ICON = (HICON) NULL;
  90 HICON wxSTD_MDICHILDFRAME_ICON = (HICON) NULL;
  91 HICON wxSTD_MDIPARENTFRAME_ICON = (HICON) NULL;
  92
  93 HICON wxDEFAULT_FRAME_ICON = (HICON) NULL;
  94 HICON wxDEFAULT_MDICHILDFRAME_ICON = (HICON) NULL;
  95 HICON wxDEFAULT_MDIPARENTFRAME_ICON = (HICON) NULL;
  96
  97 HBRUSH wxDisableButtonBrush = (HBRUSH) 0;
  98
  99 MRESULT wxWndProc(HWND, UINT, MPARAM, MPARAM);
 100
 101 // ===========================================================================
 102 // implementation
 103 // ===========================================================================
 104
 105 // ---------------------------------------------------------------------------
 106 // wxApp
 107 // ---------------------------------------------------------------------------
 108
 109 #if !USE_SHARED_LIBRARY
 110     IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 111
 112     BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 113         EVT_IDLE(wxApp::OnIdle)
 114         EVT_END_SESSION(wxApp::OnEndSession)
 115         EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 116     END_EVENT_TABLE()
 117 #endif
 118
 119 //// Initialize
 120 bool wxApp::Initialize()
 121 {
 122     // Some people may wish to use this, but
 123     // probably it shouldn't be here by default.
 124 #ifdef __WXDEBUG__
 125     //    wxRedirectIOToConsole();
 126 #endif
 127
 128     wxBuffer = new wxChar[1500]; // FIXME; why?
 129
 130     wxClassInfo::InitializeClasses();
 131
 132 #if wxUSE_RESOURCES
 133     wxGetResource(wxT("wxWindows"), wxT("OsVersion"), &wxOsVersion);
 134 #endif
 135
 136     // I'm annoyed ... I don't know where to put this and I don't want to
 137     // create a module for that as it's part of the core.
 138 #if wxUSE_THREADS
 139     wxPendingEvents = new wxList();
 140     wxPendingEventsLocker = new wxCriticalSection();
 141 #endif
 142
 143     wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING);
 144     wxTheColourDatabase->Initialize();
 145
 146     wxInitializeStockLists();
 147     wxInitializeStockObjects();
 148
 149 #if wxUSE_WX_RESOURCES
 150     wxInitializeResourceSystem();
 151 #endif
 152
 153     wxBitmap::InitStandardHandlers();
 154
 155     g_globalCursor = new wxCursor;
 156
 157 // TODO:
 158 /*
 159     wxSTD_FRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_FRAME"));
 160     wxSTD_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_MDIPARENTFRAME"));
 161     wxSTD_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_MDICHILDFRAME"));
 162
 163     wxDEFAULT_FRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_FRAME"));
 164     wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_MDIPARENTFRAME"));
 165     wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_MDICHILDFRAME"));
 166 */
 167     RegisterWindowClasses();
 168
 169     // Create the brush for disabling bitmap buttons
 170 // TODO:
 171 /*
 172     LOGBRUSH lb;
 173     lb.lbStyle = BS_PATTERN;
 174     lb.lbHatch = (int)LoadBitmap( wxhInstance, wxT("wxDISABLE_BUTTON_BITMAP") );
 175     if ( lb.lbHatch )
 176     {
 177         wxDisableButtonBrush = ::CreateBrushIndirect( & lb );
 178         ::DeleteObject( (HGDIOBJ)lb.lbHatch );
 179     }
 180  */
 181     //else: wxWindows resources are probably not linked in
 182
 183     wxWinHandleList = new wxList(wxKEY_INTEGER);
 184
 185     // This is to foil optimizations in Visual C++ that throw out dummy.obj.
 186     // PLEASE DO NOT ALTER THIS.
 187 #if !defined(WXMAKINGDLL)
 188     extern char wxDummyChar;
 189     if (wxDummyChar) wxDummyChar++;
 190 #endif
 191
 192     wxSetKeyboardHook(TRUE);
 193
 194     wxModule::RegisterModules();
 195     if (!wxModule::InitializeModules())
 196         return FALSE;
 197     return TRUE;
 198 }
 199
 200 // ---------------------------------------------------------------------------
 201 // RegisterWindowClasses
 202 // ---------------------------------------------------------------------------
 203
 204 // TODO we should only register classes really used by the app. For this it
 205 //      would be enough to just delay the class registration until an attempt
 206 //      to create a window of this class is made.
 207 bool wxApp::RegisterWindowClasses()
 208 {
 209 // TODO:
 210 /*
 211     WNDCLASS wndclass;
 212
 213     // for each class we register one with CS_(V|H)REDRAW style and one
 214     // without for windows created with wxNO_FULL_REDRAW_ON_REPAINT flag
 215     static const long styleNormal = 0; // TODO: CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
 216     static const long styleNoRedraw = 0; // TODO: CS_DBLCLKS;
 217
 218     // the fields which are common to all classes
 219     wndclass.lpfnWndProc   = (WNDPROC)wxWndProc;
 220     wndclass.cbClsExtra    = 0;
 221     wndclass.cbWndExtra    = sizeof( DWORD ); // VZ: what is this DWORD used for?
 222     wndclass.hInstance     = wxhInstance;
 223     wndclass.hIcon         = (HICON) NULL;
 224     wndclass.hCursor       = 0; // TODO: ::LoadCursor((HINSTANCE)NULL, IDC_ARROW);
 225     wndclass.lpszMenuName  = NULL;
 226
 227     // Register the frame window class.
 228     wndclass.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE + 1);
 229     wndclass.lpszClassName = wxFrameClassName;
 230     wndclass.style         = styleNormal;
 231
 232     if ( !RegisterClass(&wndclass) )
 233     {
 234         wxLogLastError("RegisterClass(frame)");
 235
 236         return FALSE;
 237     }
 238
 239     // "no redraw" frame
 240     wndclass.lpszClassName = wxFrameClassNameNoRedraw;
 241     wndclass.style         = styleNoRedraw;
 242
 243     if ( !RegisterClass(&wndclass) )
 244     {
 245         wxLogLastError("RegisterClass(no redraw frame)");
 246
 247         return FALSE;
 248     }
 249
 250     // Register the MDI frame window class.
 251     wndclass.hbrBackground = (HBRUSH)NULL; // paint MDI frame ourselves
 252     wndclass.lpszClassName = wxMDIFrameClassName;
 253     wndclass.style         = styleNormal;
 254
 255     if ( !RegisterClass(&wndclass) )
 256     {
 257         wxLogLastError("RegisterClass(MDI parent)");
 258
 259         return FALSE;
 260     }
 261
 262     // "no redraw" MDI frame
 263     wndclass.lpszClassName = wxMDIFrameClassNameNoRedraw;
 264     wndclass.style         = styleNoRedraw;
 265
 266     if ( !RegisterClass(&wndclass) )
 267     {
 268         wxLogLastError("RegisterClass(no redraw MDI parent frame)");
 269
 270         return FALSE;
 271     }
 272
 273     // Register the MDI child frame window class.
 274     wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
 275     wndclass.lpszClassName = wxMDIChildFrameClassName;
 276     wndclass.style         = styleNormal;
 277
 278     if ( !RegisterClass(&wndclass) )
 279     {
 280         wxLogLastError("RegisterClass(MDI child)");
 281
 282         return FALSE;
 283     }
 284
 285     // "no redraw" MDI child frame
 286     wndclass.lpszClassName = wxMDIChildFrameClassNameNoRedraw;
 287     wndclass.style         = styleNoRedraw;
 288
 289     if ( !RegisterClass(&wndclass) )
 290     {
 291         wxLogLastError("RegisterClass(no redraw MDI child)");
 292
 293         return FALSE;
 294     }
 295
 296     // Register the panel window class.
 297     wndclass.hbrBackground = (HBRUSH) GetStockObject( LTGRAY_BRUSH );
 298     wndclass.lpszClassName = wxPanelClassName;
 299     wndclass.style         = styleNormal;
 300
 301     if ( !RegisterClass(&wndclass) )
 302     {
 303         wxLogLastError("RegisterClass(panel)");
 304
 305         return FALSE;
 306     }
 307
 308     // Register the canvas and textsubwindow class name
 309     wndclass.hbrBackground = (HBRUSH)NULL;
 310     wndclass.lpszClassName = wxCanvasClassName;
 311
 312     if ( !RegisterClass(&wndclass) )
 313     {
 314         wxLogLastError("RegisterClass(canvas)");
 315
 316         return FALSE;
 317     }
 318 */
 319     return TRUE;
 320 }
 321
 322 // ---------------------------------------------------------------------------
 323 // Convert Windows to argc, argv style
 324 // ---------------------------------------------------------------------------
 325
 326 void wxApp::ConvertToStandardCommandArgs(char* lpCmdLine)
 327 {
 328     wxStringList args;
 329
 330     wxString cmdLine(lpCmdLine);
 331     int count = 0;
 332
 333     // Get application name
 334     wxChar name[260]; // 260 is MAX_PATH value from windef.h
 335 // TODO:     ::GetModuleFileName(wxhInstance, name, WXSIZEOF(name));
 336
 337     args.Add(name);
 338     count++;
 339
 340     wxStrcpy(name, wxFileNameFromPath(name));
 341     wxStripExtension(name);
 342     wxTheApp->SetAppName(name);
 343
 344     // Break up string
 345     // Treat strings enclosed in double-quotes as single arguments
 346     int i = 0;
 347     int len = cmdLine.Length();
 348     while (i < len)
 349     {
 350         // Skip whitespace
 351         while ((i < len) && wxIsspace(cmdLine.GetChar(i)))
 352             i ++;
 353
 354         if (i < len)
 355         {
 356             if (cmdLine.GetChar(i) == wxT('"')) // We found the start of a string
 357             {
 358                 i ++;
 359                 int first = i;
 360                 while ((i < len) && (cmdLine.GetChar(i) != wxT('"')))
 361                     i ++;
 362
 363                 wxString arg(cmdLine.Mid(first, (i - first)));
 364
 365                 args.Add(arg);
 366                 count ++;
 367
 368                 if (i < len)
 369                     i ++; // Skip past 2nd quote
 370             }
 371             else // Unquoted argument
 372             {
 373                 int first = i;
 374                 while ((i < len) && !wxIsspace(cmdLine.GetChar(i)))
 375                     i ++;
 376
 377                 wxString arg(cmdLine.Mid(first, (i - first)));
 378
 379                 args.Add(arg);
 380                 count ++;
 381             }
 382         }
 383     }
 384
 385     wxTheApp->argv = new wxChar*[count + 1];
 386     for (i = 0; i < count; i++)
 387     {
 388         wxString arg(args[i]);
 389         wxTheApp->argv[i] = copystring((const wxChar*)arg);
 390     }
 391     wxTheApp->argv[count] = NULL; // argv[] is a NULL-terminated list
 392     wxTheApp->argc = count;
 393 }
 394
 395 //// Cleans up any wxWindows internal structures left lying around
 396
 397 void wxApp::CleanUp()
 398 {
 399     //// COMMON CLEANUP
 400
 401 #if wxUSE_LOG
 402     // flush the logged messages if any and install a 'safer' log target: the
 403     // default one (wxLogGui) can't be used after the resources are freed just
 404     // below and the user suppliedo ne might be even more unsafe (using any
 405     // wxWindows GUI function is unsafe starting from now)
 406     wxLog::DontCreateOnDemand();
 407
 408     // this will flush the old messages if any
 409     delete wxLog::SetActiveTarget(new wxLogStderr);
 410 #endif // wxUSE_LOG
 411
 412     // One last chance for pending objects to be cleaned up
 413     wxTheApp->DeletePendingObjects();
 414
 415     wxModule::CleanUpModules();
 416
 417 #if wxUSE_WX_RESOURCES
 418     wxCleanUpResourceSystem();
 419
 420     //  wxDefaultResourceTable->ClearTable();
 421 #endif
 422
 423     // Indicate that the cursor can be freed, so that cursor won't be deleted
 424     // by deleting the bitmap list before g_globalCursor goes out of scope
 425     // (double deletion of the cursor).
 426     wxSetCursor(wxNullCursor);
 427     delete g_globalCursor;
 428     g_globalCursor = NULL;
 429
 430     wxDeleteStockObjects();
 431
 432     // Destroy all GDI lists, etc.
 433     wxDeleteStockLists();
 434
 435     delete wxTheColourDatabase;
 436     wxTheColourDatabase = NULL;
 437
 438     wxBitmap::CleanUpHandlers();
 439
 440     delete[] wxBuffer;
 441     wxBuffer = NULL;
 442
 443     //// WINDOWS-SPECIFIC CLEANUP
 444
 445     wxSetKeyboardHook(FALSE);
 446 // TODO:
 447 /*
 448     if (wxSTD_FRAME_ICON)
 449         DestroyIcon(wxSTD_FRAME_ICON);
 450     if (wxSTD_MDICHILDFRAME_ICON)
 451         DestroyIcon(wxSTD_MDICHILDFRAME_ICON);
 452     if (wxSTD_MDIPARENTFRAME_ICON)
 453         DestroyIcon(wxSTD_MDIPARENTFRAME_ICON);
 454
 455     if (wxDEFAULT_FRAME_ICON)
 456         DestroyIcon(wxDEFAULT_FRAME_ICON);
 457     if (wxDEFAULT_MDICHILDFRAME_ICON)
 458         DestroyIcon(wxDEFAULT_MDICHILDFRAME_ICON);
 459     if (wxDEFAULT_MDIPARENTFRAME_ICON)
 460         DestroyIcon(wxDEFAULT_MDIPARENTFRAME_ICON);
 461 */
 462     if ( wxDisableButtonBrush )
 463     {
 464 // TODO:        ::DeleteObject( wxDisableButtonBrush );
 465     }
 466
 467     if (wxWinHandleList)
 468         delete wxWinHandleList;
 469
 470     // GL: I'm annoyed ... I don't know where to put this and I don't want to
 471     // create a module for that as it's part of the core.
 472 #if wxUSE_THREADS
 473     delete wxPendingEvents;
 474     delete wxPendingEventsLocker;
 475     // If we don't do the following, we get an apparent memory leak.
 476     ((wxEvtHandler&) wxDefaultValidator).ClearEventLocker();
 477 #endif
 478
 479     wxClassInfo::CleanUpClasses();
 480
 481     delete wxTheApp;
 482     wxTheApp = NULL;
 483
 484 #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
 485     // At this point we want to check if there are any memory
 486     // blocks that aren't part of the wxDebugContext itself,
 487     // as a special case. Then when dumping we need to ignore
 488     // wxDebugContext, too.
 489     if (wxDebugContext::CountObjectsLeft(TRUE) > 0)
 490     {
 491         wxLogDebug(wxT("There were memory leaks."));
 492         wxDebugContext::Dump();
 493         wxDebugContext::PrintStatistics();
 494     }
 495     //  wxDebugContext::SetStream(NULL, NULL);
 496 #endif
 497
 498 #if wxUSE_LOG
 499     // do it as the very last thing because everything else can log messages
 500     delete wxLog::SetActiveTarget(NULL);
 501 #endif // wxUSE_LOG
 502 }
 503
 504 #if !defined(_WINDLL) || (defined(_WINDLL) && defined(WXMAKINGDLL))
 505
 506 //// Main wxWindows entry point
 507 int wxEntry(WXHINSTANCE hInstance,
 508             WXHINSTANCE WXUNUSED(hPrevInstance),
 509             char *lpCmdLine,
 510             int nCmdShow,
 511             bool enterLoop)
 512 {
 513     // do check for memory leaks on program exit
 514     // (another useful flag is _CRTDBG_DELAY_FREE_MEM_DF which doesn't free
 515     //  deallocated memory which may be used to simulate low-memory condition)
 516 // TODO:    wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF);
 517
 518     // take everything into a try-except block in release build
 519     // FIXME other compilers must support Win32 SEH (structured exception
 520     //       handling) too, just find the appropriate keyword in their docs!
 521     //       Please note that it's _not_ the same as C++ exceptions!
 522
 523         wxhInstance = (HINSTANCE) hInstance;
 524
 525         if (!wxApp::Initialize())
 526             return 0;
 527
 528         // create the application object or ensure that one already exists
 529         if (!wxTheApp)
 530         {
 531             // The app may have declared a global application object, but we recommend
 532             // the IMPLEMENT_APP macro is used instead, which sets an initializer
 533             // function for delayed, dynamic app object construction.
 534             wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
 535                          wxT("No initializer - use IMPLEMENT_APP macro.") );
 536
 537             wxTheApp = (wxApp*)(*wxApp::GetInitializerFunction()) ();
 538         }
 539
 540         wxCHECK_MSG( wxTheApp, 0, wxT("You have to define an instance of wxApp!") );
 541
 542         // save the WinMain() parameters
 543         wxTheApp->ConvertToStandardCommandArgs(lpCmdLine);
 544         wxTheApp->m_nCmdShow = nCmdShow;
 545
 546         // GUI-specific initialisation. In fact on Windows we don't have any,
 547         // but this call is provided for compatibility across platforms.
 548         wxTheApp->OnInitGui();
 549
 550         int retValue = 0;
 551
 552         if ( wxTheApp->OnInit() )
 553         {
 554             if ( enterLoop )
 555             {
 556                 retValue = wxTheApp->OnRun();
 557             }
 558             else
 559                 // We want to initialize, but not run or exit immediately.
 560                 return 1;
 561         }
 562         //else: app initialization failed, so we skipped OnRun()
 563
 564         wxWindow *topWindow = wxTheApp->GetTopWindow();
 565         if ( topWindow )
 566         {
 567             // Forcibly delete the window.
 568             if ( topWindow->IsKindOf(CLASSINFO(wxFrame)) ||
 569                     topWindow->IsKindOf(CLASSINFO(wxDialog)) )
 570             {
 571                 topWindow->Close(TRUE);
 572                 wxTheApp->DeletePendingObjects();
 573             }
 574             else
 575             {
 576                 delete topWindow;
 577                 wxTheApp->SetTopWindow(NULL);
 578             }
 579         }
 580
 581         wxTheApp->OnExit();
 582
 583         wxApp::CleanUp();
 584
 585         return retValue;
 586 }
 587
 588 #else /*  _WINDLL  */
 589
 590 //// Entry point for DLLs
 591
 592 int wxEntry(WXHINSTANCE hInstance)
 593 {
 594     wxhInstance = (HINSTANCE) hInstance;
 595     wxApp::Initialize();
 596
 597     // The app may have declared a global application object, but we recommend
 598     // the IMPLEMENT_APP macro is used instead, which sets an initializer function
 599     // for delayed, dynamic app object construction.
 600     if (!wxTheApp)
 601     {
 602         wxCHECK_MSG( wxApp::GetInitializerFunction(), 0,
 603                      "No initializer - use IMPLEMENT_APP macro." );
 604
 605         wxTheApp = (* wxApp::GetInitializerFunction()) ();
 606     }
 607
 608     wxCHECK_MSG( wxTheApp, 0, "You have to define an instance of wxApp!" );
 609
 610     wxTheApp->argc = 0;
 611     wxTheApp->argv = NULL;
 612
 613     wxTheApp->OnInitGui();
 614
 615     wxTheApp->OnInit();
 616
 617     wxWindow *topWindow = wxTheApp->GetTopWindow();
 618     if ( topWindow && topWindow->GetHWND())
 619     {
 620         topWindow->Show(TRUE);
 621     }
 622
 623     return 1;
 624 }
 625 #endif // _WINDLL
 626
 627 //// Static member initialization
 628
 629 wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL;
 630
 631 wxApp::wxApp()
 632 {
 633     m_topWindow = NULL;
 634     wxTheApp = this;
 635     m_wantDebugOutput = TRUE;
 636
 637     argc = 0;
 638     argv = NULL;
 639     m_printMode = wxPRINT_WINDOWS;
 640     m_exitOnFrameDelete = TRUE;
 641     m_auto3D = TRUE;
 642 }
 643
 644 wxApp::~wxApp()
 645 {
 646     // Delete command-line args
 647     int i;
 648     for (i = 0; i < argc; i++)
 649     {
 650         delete[] argv[i];
 651     }
 652     delete[] argv;
 653 }
 654
 655 bool wxApp::Initialized()
 656 {
 657 #ifndef _WINDLL
 658     if (GetTopWindow())
 659         return TRUE;
 660     else
 661         return FALSE;
 662 #endif
 663 #ifdef _WINDLL // Assume initialized if DLL (no way of telling)
 664     return TRUE;
 665 #endif
 666 }
 667
 668 /*
 669  * Get and process a message, returning FALSE if WM_QUIT
 670  * received (and also set the flag telling the app to exit the main loop)
 671  *
 672  */
 673 bool wxApp::DoMessage()
 674 {
 675     BOOL rc = FALSE; // TODO: ::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0);
 676     if ( rc == 0 )
 677     {
 678         // got WM_QUIT
 679         m_keepGoing = FALSE;
 680
 681         return FALSE;
 682     }
 683     else if ( rc == -1 )
 684     {
 685         // should never happen, but let's test for it nevertheless
 686         wxLogLastError("GetMessage");
 687     }
 688     else
 689     {
 690 #if wxUSE_THREADS
 691         wxASSERT_MSG( wxThread::IsMain(),
 692                       wxT("only the main thread can process Windows messages") );
 693
 694         static bool s_hadGuiLock = TRUE;
 695 // TODO:
 696 /*
 697         static wxMsgArray s_aSavedMessages;
 698
 699         // if a secondary thread owns is doing GUI calls, save all messages for
 700         // later processing - we can't process them right now because it will
 701         // lead to recursive library calls (and we're not reentrant)
 702         if ( !wxGuiOwnedByMainThread() )
 703         {
 704             s_hadGuiLock = FALSE;
 705
 706             // leave out WM_COMMAND messages: too dangerous, sometimes
 707             // the message will be processed twice
 708             if ( !wxIsWaitingForThread() ||
 709                     s_currentMsg.message != WM_COMMAND )
 710             {
 711                 s_aSavedMessages.Add(s_currentMsg);
 712             }
 713
 714             return TRUE;
 715         }
 716         else
 717         {
 718             // have we just regained the GUI lock? if so, post all of the saved
 719             // messages
 720             //
 721             // FIXME of course, it's not _exactly_ the same as processing the
 722             //       messages normally - expect some things to break...
 723             if ( !s_hadGuiLock )
 724             {
 725                 s_hadGuiLock = TRUE;
 726
 727                 size_t count = s_aSavedMessages.Count();
 728                 for ( size_t n = 0; n < count; n++ )
 729                 {
 730                     MSG& msg = s_aSavedMessages[n];
 731
 732                     if ( !ProcessMessage((WXMSG *)&msg) )
 733                     {
 734                         ::TranslateMessage(&msg);
 735                         ::DispatchMessage(&msg);
 736                     }
 737                 }
 738                 s_aSavedMessages.Empty();
 739             }
 740         }
 741 */
 742 #endif // wxUSE_THREADS
 743
 744         // Process the message
 745 // TODO:
 746 /*
 747         if ( !ProcessMessage((WXMSG *)&s_currentMsg) )
 748         {
 749             ::TranslateMessage(&s_currentMsg);
 750             ::DispatchMessage(&s_currentMsg);
 751         }
 752 */
 753     }
 754
 755     return TRUE;
 756 }
 757
 758 /*
 759  * Keep trying to process messages until WM_QUIT
 760  * received.
 761  *
 762  * If there are messages to be processed, they will all be
 763  * processed and OnIdle will not be called.
 764  * When there are no more messages, OnIdle is called.
 765  * If OnIdle requests more time,
 766  * it will be repeatedly called so long as there are no pending messages.
 767  * A 'feature' of this is that once OnIdle has decided that no more processing
 768  * is required, then it won't get processing time until further messages
 769  * are processed (it'll sit in DoMessage).
 770  */
 771
 772 int wxApp::MainLoop()
 773 {
 774     m_keepGoing = TRUE;
 775
 776     while ( m_keepGoing )
 777     {
 778 #if wxUSE_THREADS
 779         wxMutexGuiLeaveOrEnter();
 780 #endif // wxUSE_THREADS
 781 // TODO:
 782 /*
 783         while ( !::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) &&
 784                 ProcessIdle() )
 785         {
 786         }
 787 */
 788
 789         DoMessage();
 790     }
 791
 792 // TODO:    return s_currentMsg.wParam;
 793     return FALSE;
 794 }
 795
 796 // Returns TRUE if more time is needed.
 797 bool wxApp::ProcessIdle()
 798 {
 799     wxIdleEvent event;
 800     event.SetEventObject(this);
 801     ProcessEvent(event);
 802
 803     return event.MoreRequested();
 804 }
 805
 806 #if wxUSE_THREADS
 807 void wxApp::ProcessPendingEvents()
 808 {
 809     wxNode *node = wxPendingEvents->First();
 810     wxCriticalSectionLocker locker(*wxPendingEventsLocker);
 811
 812     while (node)
 813     {
 814         wxEvtHandler *handler = (wxEvtHandler *)node->Data();
 815
 816         handler->ProcessPendingEvents();
 817
 818         delete node;
 819         node = wxPendingEvents->First();
 820     }
 821 }
 822 #endif
 823
 824
 825 void wxApp::ExitMainLoop()
 826 {
 827     m_keepGoing = FALSE;
 828 }
 829
 830 bool wxApp::Pending()
 831 {
 832 // TODO:    return (::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0);
 833     return FALSE;
 834 }
 835
 836 void wxApp::Dispatch()
 837 {
 838     DoMessage();
 839 }
 840
 841 /*
 842  * Give all windows a chance to preprocess
 843  * the message. Some may have accelerator tables, or have
 844  * MDI complications.
 845  */
 846
 847 bool wxApp::ProcessMessage(WXMSG *wxmsg)
 848 {
 849 // TODO:
 850 /*
 851     MSG *msg = (MSG *)wxmsg;
 852     HWND hWnd = msg->hwnd;
 853     wxWindow *wndThis = wxFindWinFromHandle((WXHWND)hWnd), *wnd;
 854
 855     // for some composite controls (like a combobox), wndThis might be NULL
 856     // because the subcontrol is not a wxWindow, but only the control itself
 857     // is - try to catch this case
 858     while ( hWnd && !wndThis )
 859     {
 860         hWnd = 0; // TODO: ::GetParent(hWnd);
 861         wndThis = wxFindWinFromHandle((WXHWND)hWnd);
 862     }
 863
 864     // Try translations first; find the youngest window with
 865     // a translation table.
 866     for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
 867     {
 868         if ( wnd->OS2TranslateMessage(wxmsg) )
 869             return TRUE;
 870     }
 871
 872     // Anyone for a non-translation message? Try youngest descendants first.
 873     for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
 874     {
 875         if ( wnd->OS2ProcessMessage(wxmsg) )
 876             return TRUE;
 877     }
 878 */
 879     return FALSE;
 880 }
 881
 882 void wxApp::OnIdle(wxIdleEvent& event)
 883 {
 884     static bool s_inOnIdle = FALSE;
 885
 886     // Avoid recursion (via ProcessEvent default case)
 887     if ( s_inOnIdle )
 888         return;
 889
 890     s_inOnIdle = TRUE;
 891
 892     // 'Garbage' collection of windows deleted with Close().
 893     DeletePendingObjects();
 894
 895 #if wxUSE_LOG
 896     // flush the logged messages if any
 897     wxLog *pLog = wxLog::GetActiveTarget();
 898     if ( pLog != NULL && pLog->HasPendingMessages() )
 899         pLog->Flush();
 900 #endif // wxUSE_LOG
 901
 902     // Send OnIdle events to all windows
 903     if ( SendIdleEvents() )
 904     {
 905         // SendIdleEvents() returns TRUE if at least one window requested more
 906         // idle events
 907         event.RequestMore(TRUE);
 908     }
 909
 910     // If they are pending events, we must process them.
 911 #if wxUSE_THREADS
 912     ProcessPendingEvents();
 913 #endif
 914     s_inOnIdle = FALSE;
 915 }
 916
 917 // Send idle event to all top-level windows
 918 bool wxApp::SendIdleEvents()
 919 {
 920     bool needMore = FALSE;
 921
 922     wxWindowList::Node* node = wxTopLevelWindows.GetFirst();
 923     while (node)
 924     {
 925         wxWindow* win = node->GetData();
 926         if (SendIdleEvents(win))
 927             needMore = TRUE;
 928         node = node->GetNext();
 929     }
 930
 931     return needMore;
 932 }
 933
 934 // Send idle event to window and all subwindows
 935 bool wxApp::SendIdleEvents(wxWindow* win)
 936 {
 937     bool needMore = FALSE;
 938
 939     wxIdleEvent event;
 940     event.SetEventObject(win);
 941     win->GetEventHandler()->ProcessEvent(event);
 942
 943     if (event.MoreRequested())
 944         needMore = TRUE;
 945
 946     wxNode* node = win->GetChildren().First();
 947     while (node)
 948     {
 949         wxWindow* win = (wxWindow*) node->Data();
 950         if (SendIdleEvents(win))
 951             needMore = TRUE;
 952
 953         node = node->Next();
 954     }
 955     return needMore;
 956 }
 957
 958 void wxApp::DeletePendingObjects()
 959 {
 960     wxNode *node = wxPendingDelete.First();
 961     while (node)
 962     {
 963         wxObject *obj = (wxObject *)node->Data();
 964
 965         delete obj;
 966
 967         if (wxPendingDelete.Member(obj))
 968             delete node;
 969
 970         // Deleting one object may have deleted other pending
 971         // objects, so start from beginning of list again.
 972         node = wxPendingDelete.First();
 973     }
 974 }
 975
 976 void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
 977 {
 978     if (GetTopWindow())
 979         GetTopWindow()->Close(TRUE);
 980 }
 981
 982 // Default behaviour: close the application with prompts. The
 983 // user can veto the close, and therefore the end session.
 984 void wxApp::OnQueryEndSession(wxCloseEvent& event)
 985 {
 986     if (GetTopWindow())
 987     {
 988         if (!GetTopWindow()->Close(!event.CanVeto()))
 989             event.Veto(TRUE);
 990     }
 991 }
 992
 993 int wxApp::GetComCtl32Version() const
 994 {
 995    // TODO:  Does OS/2 even need this method?
 996    /*
 997     // have we loaded COMCTL32 yet?
 998     HMODULE theModule = ::GetModuleHandle(wxT("COMCTL32"));
 999     int version = 0;
1000
1001     // if so, then we can check for the version
1002     if (theModule)
1003     {
1004         // InitCommonControlsEx is unique to 4.7 and later
1005         FARPROC theProc = ::GetProcAddress(theModule, "InitCommonControlsEx");
1006
1007         if (! theProc)
1008         {                    // not found, must be 4.00
1009             version = 400;
1010         }
1011         else
1012         {
1013             // The following symbol are unique to 4.71
1014             //   DllInstall
1015             //   FlatSB_EnableScrollBar FlatSB_GetScrollInfo FlatSB_GetScrollPos
1016             //   FlatSB_GetScrollProp FlatSB_GetScrollRange FlatSB_SetScrollInfo
1017             //   FlatSB_SetScrollPos FlatSB_SetScrollProp FlatSB_SetScrollRange
1018             //   FlatSB_ShowScrollBar
1019             //   _DrawIndirectImageList _DuplicateImageList
1020             //   InitializeFlatSB
1021             //   UninitializeFlatSB
1022             // we could check for any of these - I chose DllInstall
1023             FARPROC theProc = ::GetProcAddress(theModule, "DllInstall");
1024             if (! theProc)
1025             {
1026                 // not found, must be 4.70
1027                 version = 470;
1028             }
1029             else
1030             {                         // found, must be 4.71
1031                 version = 471;
1032             }
1033         }
1034     }
1035     return version;
1036 */
1037     return 0;
1038 }
1039
1040 void wxExit()
1041 {
1042     wxLogError(_("Fatal error: exiting"));
1043
1044     wxApp::CleanUp();
1045 }
1046
1047 // Yield to incoming messages
1048 bool wxYield()
1049 {
1050     HAB                             vHab;
1051     QMSG                            vMsg;
1052     // We want to go back to the main message loop
1053     // if we see a WM_QUIT. (?)
1054     while (::WinPeekMsg(vHab, &vMsg, (HWND)NULL, 0, 0, PM_NOREMOVE) && vMsg.msg != WM_QUIT)
1055     {
1056         if (!wxTheApp->DoMessage())
1057             break;
1058     }
1059     // If they are pending events, we must process them.
1060 #if wxUSE_THREADS
1061     wxTheApp->ProcessPendingEvents();
1062 #endif
1063     return TRUE;
1064 }
1065
1066 wxIcon wxApp::GetStdIcon(int which) const
1067 {
1068     // TODO:
1069     /*
1070     switch(which)
1071     {
1072         case wxICON_INFORMATION:
1073             return wxIcon("wxICON_INFO");
1074
1075         case wxICON_QUESTION:
1076             return wxIcon("wxICON_QUESTION");
1077
1078         case wxICON_EXCLAMATION:
1079             return wxIcon("wxICON_WARNING");
1080
1081         default:
1082             wxFAIL_MSG(wxT("requested non existent standard icon"));
1083             // still fall through
1084
1085         case wxICON_HAND:
1086             return wxIcon("wxICON_ERROR");
1087     }
1088 */
1089     return wxIcon("wxICON_ERROR");
1090 }
1091
1092
1093 HINSTANCE wxGetInstance()
1094 {
1095     return wxhInstance;
1096 }
1097
1098 void wxSetInstance(HINSTANCE hInst)
1099 {
1100     wxhInstance = hInst;
1101 }
1102
1103