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 #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 #ifndef WX_PRECOMP
  20     #include "wx/frame.h"
  21     #include "wx/app.h"
  22     #include "wx/utils.h"
  23     #include "wx/gdicmn.h"
  24     #include "wx/pen.h"
  25     #include "wx/brush.h"
  26     #include "wx/cursor.h"
  27     #include "wx/icon.h"
  28     #include "wx/palette.h"
  29     #include "wx/dc.h"
  30     #include "wx/dialog.h"
  31     #include "wx/msgdlg.h"
  32     #include "wx/intl.h"
  33     #include "wx/dynarray.h"
  34     #include "wx/wxchar.h"
  35     #include "wx/icon.h"
  36     #include "wx/timer.h"
  37 #endif
  38
  39 #include "wx/log.h"
  40 #include "wx/module.h"
  41
  42 #include "wx/os2/private.h"
  43
  44 #ifdef __EMX__
  45
  46 #include <sys/ioctl.h>
  47 #include <sys/select.h>
  48
  49 #else
  50
  51 #include <nerrno.h>
  52 #include <sys/ioctl.h>
  53 #include <sys/select.h>
  54 #include <sys/time.h>
  55
  56 #endif //
  57
  58 #ifndef __EMX__
  59
  60 #define select(a,b,c,d,e) bsdselect(a,b,c,d,e)
  61 extern "C" int _System bsdselect(int,
  62                                  struct fd_set *,
  63                                  struct fd_set *,
  64                                  struct fd_set *,
  65                                  struct timeval *);
  66 #endif
  67
  68 #if wxUSE_THREADS
  69     #include "wx/thread.h"
  70
  71     // define the array of QMSG strutures
  72     WX_DECLARE_OBJARRAY(QMSG, wxMsgArray);
  73
  74     #include "wx/arrimpl.cpp"
  75
  76     WX_DEFINE_OBJARRAY(wxMsgArray);
  77 #endif // wxUSE_THREADS
  78
  79 #if wxUSE_TOOLTIPS
  80     #include "wx/tooltip.h"
  81 #endif // wxUSE_TOOLTIPS
  82
  83 #include <string.h>
  84 #include <ctype.h>
  85
  86 // ---------------------------------------------------------------------------
  87 // global variables
  88 // ---------------------------------------------------------------------------
  89
  90 extern wxChar*                      wxBuffer;
  91 extern wxList*                      wxWinHandleList;
  92 extern wxList WXDLLEXPORT           wxPendingDelete;
  93 extern wxCursor*                    g_globalCursor;
  94
  95 HAB                                 vHabmain = NULLHANDLE;
  96 QMSG                                svCurrentMsg;
  97
  98
  99 HICON wxSTD_FRAME_ICON          = (HICON) NULL;
 100 HICON wxSTD_MDICHILDFRAME_ICON  = (HICON) NULL;
 101 HICON wxSTD_MDIPARENTFRAME_ICON = (HICON) NULL;
 102
 103 HICON wxDEFAULT_FRAME_ICON           = (HICON) NULL;
 104 HICON wxDEFAULT_MDICHILDFRAME_ICON   = (HICON) NULL;
 105 HICON wxDEFAULT_MDIPARENTFRAME_ICON  = (HICON) NULL;
 106
 107 HBRUSH wxDisableButtonBrush = (HBRUSH) 0;
 108
 109 MRESULT EXPENTRY wxWndProc( HWND hWnd,ULONG message,MPARAM mp1,MPARAM mp2);
 110 MRESULT EXPENTRY wxFrameWndProc( HWND hWnd,ULONG message,MPARAM mp1,MPARAM mp2);
 111
 112 // ===========================================================================
 113 // implementation
 114 // ===========================================================================
 115
 116 // ---------------------------------------------------------------------------
 117 // helper struct and functions for socket handling
 118 // ---------------------------------------------------------------------------
 119
 120 struct GsocketCallbackInfo{
 121     void (*proc)(void *);
 122     int type;
 123     int handle;
 124     void* gsock;
 125 };
 126
 127 // These defines and wrapper functions are used here and in gsockpm.c
 128 #define wxSockReadMask  0x01
 129 #define wxSockWriteMask 0x02
 130
 131 #ifdef __EMX__
 132 extern "C"
 133 int wxAppAddSocketHandler(int handle, int mask,
 134                            void (*callback)(void*), void * gsock)
 135 {
 136     return wxTheApp->AddSocketHandler(handle, mask, callback, gsock);
 137 }
 138 extern "C"
 139 void wxAppRemoveSocketHandler(int handle)
 140 {
 141     wxTheApp->RemoveSocketHandler(handle);
 142 }
 143 #else
 144 //  Linkage mode problems using callbacks with extern C in a .cpp module
 145 int wxAppAddSocketHandler(int handle, int mask,
 146                            void (*callback)(void*), void * gsock)
 147 {
 148     return wxTheApp->AddSocketHandler(handle, mask, callback, gsock);
 149 }
 150 void wxAppRemoveSocketHandler(int handle)
 151 {
 152     wxTheApp->RemoveSocketHandler(handle);
 153 }
 154 #endif
 155
 156 void wxApp::HandleSockets()
 157 {
 158     bool pendingEvent = FALSE;
 159
 160     // Check whether it's time for Gsocket operation
 161     if (m_maxSocketHandles > 0 && m_maxSocketNr > 0)
 162     {
 163         fd_set readfds = m_readfds;
 164         fd_set writefds = m_writefds;
 165         struct timeval timeout;
 166         int i;
 167         struct GsocketCallbackInfo
 168           *CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 169         timeout.tv_sec = 0;
 170         timeout.tv_usec = 0;
 171         if ( select(m_maxSocketNr, &readfds, &writefds, 0, &timeout) > 0)
 172         {
 173             for (i = m_lastUsedHandle + 1; i != m_lastUsedHandle;
 174                  (i < m_maxSocketNr - 1) ? i++ : (i = 0))
 175             {
 176                 if (FD_ISSET(i, &readfds))
 177                 {
 178                     int r;
 179                     for (r = 0; r < m_maxSocketHandles; r++){
 180                         if(CallbackInfo[r].handle == i &&
 181                            CallbackInfo[r].type == wxSockReadMask)
 182                             break;
 183                     }
 184                     if (r < m_maxSocketHandles)
 185                     {
 186                         CallbackInfo[r].proc(CallbackInfo[r].gsock);
 187                         pendingEvent = TRUE;
 188                     }
 189                 }
 190                 if (FD_ISSET(i, &writefds))
 191                 {
 192                     int r;
 193                     for (r = 0; r < m_maxSocketHandles; r++)
 194                         if(CallbackInfo[r].handle == i &&
 195                            CallbackInfo[r].type == wxSockWriteMask)
 196                             break;
 197                     if (r < m_maxSocketHandles)
 198                     {
 199                         CallbackInfo[r].proc(CallbackInfo[r].gsock);
 200                         pendingEvent = TRUE;
 201                     }
 202                 }
 203             }
 204             m_lastUsedHandle = i;
 205         }
 206         if (pendingEvent)
 207             ProcessPendingEvents();
 208     }
 209 }
 210 // ---------------------------------------------------------------------------
 211 // wxApp
 212 // ---------------------------------------------------------------------------
 213
 214     IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
 215
 216     BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
 217         EVT_IDLE(wxApp::OnIdle)
 218         EVT_END_SESSION(wxApp::OnEndSession)
 219         EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
 220     END_EVENT_TABLE()
 221
 222 //
 223 // Initialize
 224 //
 225 bool wxApp::Initialize(int& argc, wxChar **argv)
 226 {
 227     if ( !wxAppBase::Initialize(argc, argv) )
 228         return false;
 229
 230 #if defined(wxUSE_CONSOLEDEBUG)
 231   #if wxUSE_CONSOLEDEBUG
 232 /***********************************************/
 233 /* Code for using stdout debug                 */
 234 /* To use it you mast link app as "Window" - EK*/
 235 /***********************************************/
 236   {
 237      PPIB pib;
 238      PTIB tib;
 239
 240     printf("In console\n");
 241
 242   DosGetInfoBlocks(&tib, &pib);
 243 /* Try morphing into a PM application. */
 244 //  if(pib->pib_ultype == 2)    /* VIO */
 245     pib->pib_ultype = 3;
 246    }
 247 /**********************************************/
 248 /**********************************************/
 249   #endif //wxUSE_CONSOLEDEBUG
 250 #endif
 251
 252     //
 253     // OS2 has to have an anchorblock
 254     //
 255     vHabmain = WinInitialize(0);
 256
 257     if (!vHabmain)
 258     {
 259         // TODO: at least give some error message here...
 260         wxAppBase::CleanUp();
 261
 262         return FALSE;
 263     }
 264
 265     wxBuffer = new wxChar[1500]; // FIXME; why?
 266
 267     // Some people may wish to use this, but
 268     // probably it shouldn't be here by default.
 269 #ifdef __WXDEBUG__
 270     //    wxRedirectIOToConsole();
 271 #endif
 272
 273     wxWinHandleList = new wxList(wxKEY_INTEGER);
 274
 275     // This is to foil optimizations in Visual C++ that throw out dummy.obj.
 276     // PLEASE DO NOT ALTER THIS.
 277 #if !defined(WXMAKINGDLL) && defined(__VISAGECPP__)
 278     extern char wxDummyChar;
 279     if (wxDummyChar) wxDummyChar++;
 280 #endif
 281
 282     // wxSetKeyboardHook(TRUE);
 283
 284     RegisterWindowClasses(vHabmain);
 285
 286     return TRUE;
 287 } // end of wxApp::Initialize
 288
 289 const char*                         CANTREGISTERCLASS = " Can't register Class ";
 290 // ---------------------------------------------------------------------------
 291 // RegisterWindowClasses
 292 // ---------------------------------------------------------------------------
 293
 294 bool wxApp::RegisterWindowClasses(
 295   HAB                               vHab
 296 )
 297 {
 298     ERRORID                         vError = 0L;
 299     wxString                        sError;
 300
 301     if (!::WinRegisterClass( vHab
 302                             ,wxFrameClassName
 303                             ,wxFrameWndProc
 304                             ,CS_SIZEREDRAW | CS_SYNCPAINT
 305                             ,sizeof(ULONG)
 306                            ))
 307     {
 308         vError = ::WinGetLastError(vHab);
 309         sError = wxPMErrorToStr(vError);
 310         wxLogLastError(sError);
 311         return FALSE;
 312     }
 313
 314     if (!::WinRegisterClass( vHab
 315                             ,wxFrameClassNameNoRedraw
 316                             ,wxWndProc
 317                             ,0
 318                             ,sizeof(ULONG)
 319                            ))
 320     {
 321         vError = ::WinGetLastError(vHab);
 322         sError = wxPMErrorToStr(vError);
 323         wxLogLastError(sError);
 324         return FALSE;
 325     }
 326
 327     if (!::WinRegisterClass( vHab
 328                             ,wxMDIFrameClassName
 329                             ,wxWndProc
 330                             ,CS_SIZEREDRAW | CS_MOVENOTIFY | CS_SYNCPAINT
 331                             ,sizeof(ULONG)
 332                            ))
 333     {
 334         vError = ::WinGetLastError(vHab);
 335         sError = wxPMErrorToStr(vError);
 336         wxLogLastError(sError);
 337         return FALSE;
 338     }
 339
 340     if (!::WinRegisterClass( vHab
 341                             ,wxMDIFrameClassNameNoRedraw
 342                             ,wxWndProc
 343                             ,0
 344                             ,sizeof(ULONG)
 345                            ))
 346     {
 347         vError = ::WinGetLastError(vHab);
 348         sError = wxPMErrorToStr(vError);
 349         wxLogLastError(sError);
 350         return FALSE;
 351     }
 352
 353     if (!::WinRegisterClass( vHab
 354                             ,wxMDIChildFrameClassName
 355                             ,wxWndProc
 356                             ,CS_MOVENOTIFY | CS_SIZEREDRAW | CS_SYNCPAINT | CS_HITTEST
 357                             ,sizeof(ULONG)
 358                            ))
 359     {
 360         vError = ::WinGetLastError(vHab);
 361         sError = wxPMErrorToStr(vError);
 362         wxLogLastError(sError);
 363         return FALSE;
 364     }
 365
 366     if (!::WinRegisterClass( vHab
 367                             ,wxMDIChildFrameClassNameNoRedraw
 368                             ,wxWndProc
 369                             ,CS_HITTEST
 370                             ,sizeof(ULONG)
 371                            ))
 372     {
 373         vError = ::WinGetLastError(vHab);
 374         sError = wxPMErrorToStr(vError);
 375         wxLogLastError(sError);
 376         return FALSE;
 377     }
 378
 379     if (!::WinRegisterClass( vHab
 380                             ,wxPanelClassName
 381                             ,wxWndProc
 382                             ,CS_MOVENOTIFY | CS_SIZEREDRAW | CS_HITTEST | CS_SAVEBITS | CS_SYNCPAINT
 383                             ,sizeof(ULONG)
 384                            ))
 385     {
 386         vError = ::WinGetLastError(vHab);
 387         sError = wxPMErrorToStr(vError);
 388         wxLogLastError(sError);
 389         return FALSE;
 390     }
 391
 392     if (!::WinRegisterClass( vHab
 393                             ,wxCanvasClassName
 394                             ,wxWndProc
 395                             ,CS_SIZEREDRAW | CS_HITTEST | CS_SYNCPAINT
 396                             ,sizeof(ULONG)
 397                            ))
 398     {
 399         vError = ::WinGetLastError(vHab);
 400         sError = wxPMErrorToStr(vError);
 401         wxLogLastError(sError);
 402         return FALSE;
 403     }
 404     if (!::WinRegisterClass( vHab
 405                             ,wxCanvasClassNameNR
 406                             ,wxWndProc
 407                             ,CS_HITTEST | CS_SYNCPAINT
 408                             ,sizeof(ULONG)
 409                            ))
 410     {
 411         vError = ::WinGetLastError(vHab);
 412         sError = wxPMErrorToStr(vError);
 413         wxLogLastError(sError);
 414         return FALSE;
 415     }
 416     return TRUE;
 417 } // end of wxApp::RegisterWindowClasses
 418
 419 //
 420 // Cleans up any wxWindows internal structures left lying around
 421 //
 422 void wxApp::CleanUp()
 423 {
 424     delete[] wxBuffer;
 425     wxBuffer = NULL;
 426
 427     //
 428     // PM-SPECIFIC CLEANUP
 429     //
 430
 431     // wxSetKeyboardHook(FALSE);
 432
 433     if (wxSTD_FRAME_ICON)
 434         ::WinFreeFileIcon(wxSTD_FRAME_ICON);
 435     if (wxSTD_MDICHILDFRAME_ICON)
 436         ::WinFreeFileIcon(wxSTD_MDICHILDFRAME_ICON);
 437     if (wxSTD_MDIPARENTFRAME_ICON)
 438         ::WinFreeFileIcon(wxSTD_MDIPARENTFRAME_ICON);
 439
 440     if (wxDEFAULT_FRAME_ICON)
 441         ::WinFreeFileIcon(wxDEFAULT_FRAME_ICON);
 442     if (wxDEFAULT_MDICHILDFRAME_ICON)
 443         ::WinFreeFileIcon(wxDEFAULT_MDICHILDFRAME_ICON);
 444     if (wxDEFAULT_MDIPARENTFRAME_ICON)
 445         ::WinFreeFileIcon(wxDEFAULT_MDIPARENTFRAME_ICON);
 446
 447     if ( wxDisableButtonBrush )
 448     {
 449 // TODO:        ::DeleteObject( wxDisableButtonBrush );
 450     }
 451
 452     if (wxWinHandleList)
 453         delete wxWinHandleList;
 454
 455     // Delete Message queue
 456     if (wxTheApp->m_hMq)
 457         ::WinDestroyMsgQueue(wxTheApp->m_hMq);
 458
 459     wxAppBase::CleanUp();
 460 } // end of wxApp::CleanUp
 461
 462 bool wxApp::OnInitGui()
 463 {
 464     ERRORID                         vError;
 465     wxString                        sError;
 466
 467     if (!wxAppBase::OnInitGui())
 468         return FALSE;
 469
 470     m_hMq = ::WinCreateMsgQueue(vHabmain, 0);
 471     if (!m_hMq)
 472     {
 473         vError = ::WinGetLastError(vHabmain);
 474         sError = wxPMErrorToStr(vError);
 475         wxLogDebug(sError);
 476         return FALSE;
 477     }
 478
 479     return TRUE;
 480 } // end of wxApp::OnInitGui
 481
 482 wxApp::wxApp()
 483 {
 484     argc = 0;
 485     argv = NULL;
 486     m_nPrintMode = wxPRINT_WINDOWS;
 487     m_hMq = 0;
 488     m_maxSocketHandles = 0;
 489     m_maxSocketNr = 0;
 490     m_sockCallbackInfo = 0;
 491 } // end of wxApp::wxApp
 492
 493 wxApp::~wxApp()
 494 {
 495     //
 496     // Delete command-line args
 497     //
 498 #if wxUSE_UNICODE
 499     int                             i;
 500
 501     for (i = 0; i < argc; i++)
 502     {
 503         delete[] argv[i];
 504     }
 505     delete[] argv;
 506 #endif
 507 } // end of wxApp::~wxApp
 508
 509 bool wxApp::Initialized()
 510 {
 511     if (GetTopWindow())
 512         return TRUE;
 513     else
 514         return FALSE;
 515 } // end of wxApp::Initialized
 516
 517 //
 518 // Get and process a message, returning FALSE if WM_QUIT
 519 // received (and also set the flag telling the app to exit the main loop)
 520 //
 521
 522 bool wxApp::DoMessage()
 523 {
 524     BOOL                            bRc = ::WinGetMsg(vHabmain, &svCurrentMsg, HWND(NULL), 0, 0);
 525
 526     if (bRc == 0)
 527     {
 528         // got WM_QUIT
 529         m_bKeepGoing = FALSE;
 530         return FALSE;
 531     }
 532     else if (bRc == -1)
 533     {
 534         // should never happen, but let's test for it nevertheless
 535         wxLogLastError("GetMessage");
 536     }
 537     else
 538     {
 539 #if wxUSE_THREADS
 540         wxASSERT_MSG( wxThread::IsMain()
 541                      ,wxT("only the main thread can process Windows messages")
 542                     );
 543
 544         static bool                 sbHadGuiLock = TRUE;
 545         static wxMsgArray           svSavedMessages;
 546
 547         //
 548         // If a secondary thread owns is doing GUI calls, save all messages for
 549         // later processing - we can't process them right now because it will
 550         // lead to recursive library calls (and we're not reentrant)
 551         //
 552         if (!wxGuiOwnedByMainThread())
 553         {
 554             sbHadGuiLock = FALSE;
 555
 556             //
 557             // Leave out WM_COMMAND messages: too dangerous, sometimes
 558             // the message will be processed twice
 559             //
 560             if ( !wxIsWaitingForThread() ||
 561                     svCurrentMsg.msg != WM_COMMAND )
 562             {
 563                 svSavedMessages.Add(svCurrentMsg);
 564             }
 565             return TRUE;
 566         }
 567         else
 568         {
 569             //
 570             // Have we just regained the GUI lock? if so, post all of the saved
 571             // messages
 572             //
 573             if (!sbHadGuiLock )
 574             {
 575                 sbHadGuiLock = TRUE;
 576
 577                 size_t             nCount = svSavedMessages.Count();
 578
 579                 for (size_t n = 0; n < nCount; n++)
 580                 {
 581                     QMSG            vMsg = svSavedMessages[n];
 582
 583                     DoMessage((WXMSG*)&vMsg);
 584                 }
 585                 svSavedMessages.Empty();
 586             }
 587         }
 588 #endif // wxUSE_THREADS
 589
 590         //
 591         // Process the message
 592         //
 593         DoMessage((WXMSG *)&svCurrentMsg);
 594     }
 595     return TRUE;
 596 } // end of wxApp::DoMessage
 597
 598 void wxApp::DoMessage(
 599   WXMSG*                            pMsg
 600 )
 601 {
 602     if (!ProcessMessage((WXMSG *)&svCurrentMsg))
 603     {
 604         ::WinDispatchMsg(vHabmain, (PQMSG)&svCurrentMsg);
 605     }
 606 } // end of wxApp::DoMessage
 607
 608 //////////////////////////////////////////////////////////////////////////////
 609 //
 610 // Keep trying to process messages until WM_QUIT
 611 // received.
 612 //
 613 // If there are messages to be processed, they will all be
 614 // processed and OnIdle will not be called.
 615 // When there are no more messages, OnIdle is called.
 616 // If OnIdle requests more time,
 617 // it will be repeatedly called so long as there are no pending messages.
 618 // A 'feature' of this is that once OnIdle has decided that no more processing
 619 // is required, then it won't get processing time until further messages
 620 // are processed (it'll sit in DoMessage).
 621 //
 622 //////////////////////////////////////////////////////////////////////////////
 623 int wxApp::MainLoop()
 624 {
 625     m_bKeepGoing = TRUE;
 626
 627     while (m_bKeepGoing)
 628     {
 629 #if wxUSE_THREADS
 630         wxMutexGuiLeaveOrEnter();
 631 #endif // wxUSE_THREADS
 632         while (!Pending() && ProcessIdle())
 633         {
 634             HandleSockets();
 635             wxUsleep(10);
 636         }
 637         HandleSockets();
 638         if (Pending())
 639             DoMessage();
 640         else
 641             wxUsleep(10);
 642
 643     }
 644     return (int)svCurrentMsg.mp1;
 645 } // end of wxApp::MainLoop
 646
 647 void wxApp::ExitMainLoop()
 648 {
 649     ::WinPostMsg(NULL, WM_QUIT, 0, 0);
 650 } // end of wxApp::ExitMainLoop
 651
 652 bool wxApp::Pending()
 653 {
 654     return (::WinPeekMsg(vHabmain, (PQMSG)&svCurrentMsg, (HWND)NULL, 0, 0, PM_NOREMOVE) != 0);
 655 } // end of wxApp::Pending
 656
 657 void wxApp::Dispatch()
 658 {
 659     DoMessage();
 660 }
 661
 662 //////////////////////////////////////////////////////////////////////////////
 663 //
 664 // Give all windows a chance to preprocess
 665 // the message. Some may have accelerator tables, or have
 666 // MDI complications.
 667 //
 668 //////////////////////////////////////////////////////////////////////////////
 669 bool wxApp::ProcessMessage(
 670   WXMSG*                            pWxmsg
 671 )
 672 {
 673     QMSG*                           pMsg = (PQMSG)pWxmsg;
 674     HWND                            hWnd = pMsg->hwnd;
 675     wxWindow*                       pWndThis = wxFindWinFromHandle((WXHWND)hWnd);
 676     wxWindow*                       pWnd;
 677
 678     //
 679     // Pass non-system timer messages to the wxTimerProc
 680     //
 681     if (pMsg->msg == WM_TIMER &&
 682         (SHORT1FROMMP(pMsg->mp1) != TID_CURSOR &&
 683          SHORT1FROMMP(pMsg->mp1) != TID_FLASHWINDOW &&
 684          SHORT1FROMMP(pMsg->mp1) != TID_SCROLL &&
 685          SHORT1FROMMP(pMsg->mp1) != 0x0000
 686         ))
 687         wxTimerProc(NULL, 0, (int)pMsg->mp1, 0);
 688
 689     //
 690     // Allow the window to prevent certain messages from being
 691     // translated/processed (this is currently used by wxTextCtrl to always
 692     // grab Ctrl-C/V/X, even if they are also accelerators in some parent)
 693     //
 694     if (pWndThis && !pWndThis->OS2ShouldPreProcessMessage(pWxmsg))
 695     {
 696         return FALSE;
 697     }
 698
 699     //
 700     // For some composite controls (like a combobox), wndThis might be NULL
 701     // because the subcontrol is not a wxWindow, but only the control itself
 702     // is - try to catch this case
 703     //
 704     while (hWnd && !pWndThis)
 705     {
 706         hWnd = ::WinQueryWindow(hWnd, QW_PARENT);
 707         pWndThis = wxFindWinFromHandle((WXHWND)hWnd);
 708     }
 709
 710     //
 711     // Try translations first; find the youngest window with
 712     // a translation table. OS/2 has case sensative accels, so
 713     // this block, coded by BK, removes that and helps make them
 714     // case insensative.
 715     //
 716     if(pMsg->msg == WM_CHAR)
 717     {
 718        PBYTE                        pChmsg = (PBYTE)&(pMsg->msg);
 719        USHORT                       uSch  = CHARMSG(pChmsg)->chr;
 720        bool                         bRc;
 721
 722        //
 723        // Do not process keyup events
 724        //
 725        if(!(CHARMSG(pChmsg)->fs & KC_KEYUP))
 726        {
 727            if((CHARMSG(pChmsg)->fs & (KC_ALT | KC_CTRL)) && CHARMSG(pChmsg)->chr != 0)
 728                 CHARMSG(pChmsg)->chr = (USHORT)wxToupper((UCHAR)uSch);
 729
 730
 731            for(pWnd = pWndThis; pWnd; pWnd = pWnd->GetParent() )
 732            {
 733                if((bRc = pWnd->OS2TranslateMessage(pWxmsg)) == TRUE)
 734                    break;
 735            }
 736
 737             if(!bRc)    // untranslated, should restore original value
 738                 CHARMSG(pChmsg)->chr = uSch;
 739         }
 740     }
 741     //
 742     // Anyone for a non-translation message? Try youngest descendants first.
 743     //
 744 //  for (pWnd = pWndThis; pWnd; pWnd = pWnd->GetParent())
 745 //  {
 746 //      if (pWnd->OS2ProcessMessage(pWxmsg))
 747 //          return TRUE;
 748 //  }
 749     return FALSE;
 750 } // end of wxApp::ProcessMessage
 751
 752 bool                                gbInOnIdle = FALSE;
 753
 754 void wxApp::OnIdle(
 755   wxIdleEvent&                      rEvent
 756 )
 757 {
 758
 759     //
 760     // Avoid recursion (via ProcessEvent default case)
 761     //
 762     if (gbInOnIdle)
 763         return;
 764
 765     gbInOnIdle = TRUE;
 766
 767     wxAppBase::OnIdle(rEvent);
 768
 769 #if wxUSE_DC_CACHEING
 770     // automated DC cache management: clear the cached DCs and bitmap
 771     // if it's likely that the app has finished with them, that is, we
 772     // get an idle event and we're not dragging anything.
 773     if (!::WinGetKeyState(HWND_DESKTOP, VK_BUTTON1) &&
 774         !::WinGetKeyState(HWND_DESKTOP, VK_BUTTON3) &&
 775         !::WinGetKeyState(HWND_DESKTOP, VK_BUTTON2))
 776         wxDC::ClearCache();
 777 #endif // wxUSE_DC_CACHEING
 778
 779     gbInOnIdle = FALSE;
 780 } // end of wxApp::OnIdle
 781
 782 void wxApp::OnEndSession(
 783   wxCloseEvent&                     WXUNUSED(rEvent))
 784 {
 785     if (GetTopWindow())
 786         GetTopWindow()->Close(TRUE);
 787 } // end of wxApp::OnEndSession
 788
 789 //
 790 // Default behaviour: close the application with prompts. The
 791 // user can veto the close, and therefore the end session.
 792 //
 793 void wxApp::OnQueryEndSession(
 794   wxCloseEvent&                     rEvent
 795 )
 796 {
 797     if (GetTopWindow())
 798     {
 799         if (!GetTopWindow()->Close(!rEvent.CanVeto()))
 800             rEvent.Veto(TRUE);
 801     }
 802 } // end of wxApp::OnQueryEndSession
 803
 804 void wxApp::Exit()
 805 {
 806     wxApp::CleanUp();
 807
 808     // VZ: must really exit somehow, insert appropriate OS/2 syscall (FIXME)
 809     wxAppConsole::Exit();
 810 } // end of wxExit
 811
 812 //
 813 // Yield to incoming messages
 814 //
 815 bool wxApp::Yield(bool onlyIfNeeded)
 816 {
 817     static bool s_inYield = FALSE;
 818
 819     if ( s_inYield )
 820     {
 821         if ( !onlyIfNeeded )
 822         {
 823             wxFAIL_MSG( _T("wxYield() called recursively") );
 824         }
 825
 826         return FALSE;
 827     }
 828
 829     HAB                             vHab = 0;
 830     QMSG                            vMsg;
 831
 832     //
 833     // Disable log flushing from here because a call to wxYield() shouldn't
 834     // normally result in message boxes popping up &c
 835     //
 836     wxLog::Suspend();
 837
 838     s_inYield = TRUE;
 839
 840     //
 841     // We want to go back to the main message loop
 842     // if we see a WM_QUIT. (?)
 843     //
 844     while (::WinPeekMsg(vHab, &vMsg, (HWND)NULL, 0, 0, PM_NOREMOVE) && vMsg.msg != WM_QUIT)
 845     {
 846 #if wxUSE_THREADS
 847         wxMutexGuiLeaveOrEnter();
 848 #endif // wxUSE_THREADS
 849         if (!wxTheApp->DoMessage())
 850             break;
 851     }
 852     //
 853     // If they are pending events, we must process them.
 854     //
 855     if (wxTheApp)
 856         wxTheApp->ProcessPendingEvents();
 857
 858     HandleSockets();
 859     //
 860     // Let the logs be flashed again
 861     //
 862     wxLog::Resume();
 863     s_inYield = FALSE;
 864     return TRUE;
 865 } // end of wxYield
 866
 867 int wxApp::AddSocketHandler(int handle, int mask,
 868                             void (*callback)(void*), void * gsock)
 869 {
 870     int find;
 871     struct GsocketCallbackInfo
 872         *CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 873
 874     for (find = 0; find < m_maxSocketHandles; find++)
 875         if (CallbackInfo[find].handle == -1)
 876             break;
 877     if (find == m_maxSocketHandles)
 878     {
 879         // Allocate new memory
 880         m_sockCallbackInfo = realloc(m_sockCallbackInfo,
 881                                      (m_maxSocketHandles+=10)*
 882                                      sizeof(struct GsocketCallbackInfo));
 883         CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 884         for (find = m_maxSocketHandles - 10; find < m_maxSocketHandles; find++)
 885             CallbackInfo[find].handle = -1;
 886         find = m_maxSocketHandles - 10;
 887     }
 888     CallbackInfo[find].proc = callback;
 889     CallbackInfo[find].type = mask;
 890     CallbackInfo[find].handle = handle;
 891     CallbackInfo[find].gsock = gsock;
 892     if (mask & wxSockReadMask)
 893         FD_SET(handle, &m_readfds);
 894     if (mask & wxSockWriteMask)
 895         FD_SET(handle, &m_writefds);
 896     if (handle >= m_maxSocketNr)
 897         m_maxSocketNr = handle + 1;
 898     return find;
 899 }
 900
 901 void wxApp::RemoveSocketHandler(int handle)
 902 {
 903     struct GsocketCallbackInfo
 904         *CallbackInfo = (struct GsocketCallbackInfo *)m_sockCallbackInfo;
 905     if (handle < m_maxSocketHandles)
 906     {
 907         if (CallbackInfo[handle].type & wxSockReadMask)
 908             FD_CLR(CallbackInfo[handle].handle, &m_readfds);
 909         if (CallbackInfo[handle].type & wxSockWriteMask)
 910             FD_CLR(CallbackInfo[handle].handle, &m_writefds);
 911         CallbackInfo[handle].handle = -1;
 912     }
 913 }
 914
 915 //-----------------------------------------------------------------------------
 916 // wxWakeUpIdle
 917 //-----------------------------------------------------------------------------
 918
 919 void wxApp::WakeUpIdle()
 920 {
 921     //
 922     // Send the top window a dummy message so idle handler processing will
 923     // start up again.  Doing it this way ensures that the idle handler
 924     // wakes up in the right thread (see also wxWakeUpMainThread() which does
 925     // the same for the main app thread only)
 926     //
 927     wxWindow*                       pTopWindow = wxTheApp->GetTopWindow();
 928
 929     if (pTopWindow)
 930     {
 931         if ( !::WinPostMsg(GetHwndOf(pTopWindow), WM_NULL, (MPARAM)0, (MPARAM)0))
 932         {
 933             //
 934             // Should never happen
 935             //
 936             wxLogLastError("PostMessage(WM_NULL)");
 937         }
 938     }
 939 } // end of wxWakeUpIdle
 940
 941 HAB wxGetInstance()
 942 {
 943     return vHabmain;
 944 }
 945
 946 void wxSetInstance(
 947   HAB                               vHab
 948 )
 949 {
 950     vHabmain = vHab;
 951 }
 952