src/os2/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/toplevel.cpp
   3 // Purpose:     implements wxTopLevelWindow for MSW
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     30.12.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
   9 // License:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "toplevel.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/app.h"
  33     #include "wx/toplevel.h"
  34     #include "wx/string.h"
  35     #include "wx/log.h"
  36     #include "wx/intl.h"
  37     #include "wx/frame.h"
  38     #include "wx/control.h"
  39 #endif //WX_PRECOMP
  40
  41 #include "wx/os2/private.h"
  42
  43 // ----------------------------------------------------------------------------
  44 // stubs for missing functions under MicroWindows
  45 // ----------------------------------------------------------------------------
  46
  47
  48 // ----------------------------------------------------------------------------
  49 // globals
  50 // ----------------------------------------------------------------------------
  51
  52 // list of all frames and modeless dialogs
  53 wxWindowList wxModelessWindows;
  54
  55 // the name of the default wxWindows class
  56 extern void          wxAssociateWinWithHandle( HWND         hWnd
  57                                               ,wxWindowOS2* pWin
  58                                              );
  59 bool                 wxTopLevelWindowOS2::m_sbInitialized = FALSE;
  60
  61 // ============================================================================
  62 // wxTopLevelWindowMSW implementation
  63 // ============================================================================
  64
  65 // Dialog window proc
  66 MRESULT EXPENTRY wxDlgProc( HWND WXUNUSED(hWnd)
  67                            ,UINT uMessage
  68                            ,MPARAM WXUNUSED(wParam)
  69                            ,MPARAM WXUNUSED(lParam)
  70                           )
  71 {
  72     if (uMessage == WM_INITDLG)
  73     {
  74         //
  75         // For this message, returning TRUE tells system to set focus to the
  76         // first control in the dialog box.
  77         //
  78         return (MRESULT)TRUE;
  79     }
  80     else
  81     {
  82         //
  83         // For all the other ones, FALSE means that we didn't process the
  84         // message
  85         //
  86         return (MRESULT)FALSE;
  87     }
  88 } // end of wxDlgProc
  89
  90 // ----------------------------------------------------------------------------
  91 // wxTopLevelWindowOS2 creation
  92 // ----------------------------------------------------------------------------
  93
  94 void wxTopLevelWindowOS2::Init()
  95 {
  96     m_bIconized = m_bMaximizeOnShow = FALSE;
  97
  98     //
  99     // Unlike (almost?) all other windows, frames are created hidden
 100     //
 101     m_isShown = FALSE;
 102
 103     //
 104     // Data to save/restore when calling ShowFullScreen
 105     m_lFsStyle          = 0;
 106     m_lFsOldWindowStyle = 0;
 107     m_bFsIsMaximized    = FALSE;
 108     m_bFsIsShowing      = FALSE;
 109
 110     m_hFrame    = NULLHANDLE;
 111     memset(&m_vSwp, 0, sizeof(SWP));
 112     memset(&m_vSwpClient, 0, sizeof(SWP));
 113 } // end of wxTopLevelWindowIOS2::Init
 114
 115 WXDWORD wxTopLevelWindowOS2::OS2GetStyle(
 116   long                              lStyle
 117 , WXDWORD*                          pdwExflags
 118 ) const
 119 {
 120     long                            lMsflags = wxWindow::OS2GetStyle( (lStyle & ~wxBORDER_MASK) | wxBORDER_NONE
 121                                                                      ,pdwExflags
 122                                                                     );
 123
 124     if (lStyle == wxDEFAULT_FRAME_STYLE)
 125         lMsflags |= FCF_SIZEBORDER | FCF_TITLEBAR | FCF_SYSMENU |
 126                     FCF_MINMAX | FCF_TASKLIST;
 127     else
 128     {
 129         if ((lStyle & wxCAPTION) == wxCAPTION)
 130             lMsflags |= FCF_TASKLIST;
 131         else
 132             lMsflags |= FCF_NOMOVEWITHOWNER;
 133
 134         if ((lStyle & wxVSCROLL) == wxVSCROLL)
 135             lMsflags |= FCF_VERTSCROLL;
 136         if ((lStyle & wxHSCROLL) == wxHSCROLL)
 137             lMsflags |= FCF_HORZSCROLL;
 138         if (lStyle & wxMINIMIZE_BOX)
 139             lMsflags |= FCF_MINBUTTON;
 140         if (lStyle & wxMAXIMIZE_BOX)
 141             lMsflags |= FCF_MAXBUTTON;
 142         if (lStyle & wxTHICK_FRAME)
 143             lMsflags |= FCF_DLGBORDER;
 144         if (lStyle & wxSYSTEM_MENU)
 145             lMsflags |= FCF_SYSMENU;
 146         if (lStyle & wxCAPTION)
 147             lMsflags |= FCF_TASKLIST;
 148         if (lStyle & wxCLIP_CHILDREN)
 149         {
 150             // Invalid for frame windows under PM
 151         }
 152
 153         if (lStyle & wxTINY_CAPTION_VERT)
 154             lMsflags |= FCF_TASKLIST;
 155         if (lStyle & wxTINY_CAPTION_HORIZ)
 156             lMsflags |= FCF_TASKLIST;
 157
 158         if ((lStyle & wxTHICK_FRAME) == 0)
 159             lMsflags |= FCF_BORDER;
 160         if (lStyle & wxFRAME_TOOL_WINDOW)
 161             *pdwExflags = kFrameToolWindow;
 162
 163         if (lStyle & wxSTAY_ON_TOP)
 164             lMsflags |= FCF_SYSMODAL;
 165     }
 166     return lMsflags;
 167 } // end of wxTopLevelWindowOS2::OS2GetCreateWindowFlags
 168
 169 bool wxTopLevelWindowOS2::CreateDialog(
 170   ULONG                             ulDlgTemplate
 171 , const wxString&                   rsTitle
 172 , const wxPoint&                    rPos
 173 , const wxSize&                     rSize
 174 )
 175 {
 176     wxWindow*                       pParent = GetParent();
 177
 178     //
 179     // For the dialogs without wxDIALOG_NO_PARENT style, use the top level
 180     // app window as parent - this avoids creating modal dialogs without
 181     // parent
 182     //
 183     if (!pParent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT))
 184     {
 185         pParent = wxTheApp->GetTopWindow();
 186
 187         if (pParent)
 188         {
 189             //
 190             // Don't use transient windows as parents, this is dangerous as it
 191             // can lead to a crash if the parent is destroyed before the child
 192             //
 193             // also don't use the window which is currently hidden as then the
 194             // dialog would be hidden as well
 195             if ((pParent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 196                  !pParent->IsShown())
 197             {
 198                 pParent = NULL;
 199             }
 200         }
 201     }
 202
 203     HWND                            hWndDlg;
 204     HWND                            hWndOwner;
 205
 206     if (pParent)
 207         hWndOwner = GetHwndOf(pParent);
 208     else
 209         hWndOwner = HWND_DESKTOP;
 210
 211     hWndDlg = ::WinLoadDlg( HWND_DESKTOP
 212                            ,hWndOwner
 213                            ,(PFNWP)wxDlgProc
 214                            ,NULL
 215                            ,(ULONG)ulDlgTemplate
 216                            ,(PVOID)this
 217                           );
 218
 219     m_hWnd = (WXHWND) hWndDlg;
 220
 221     if ( !m_hWnd )
 222     {
 223         wxFAIL_MSG(_("Did you forget to include wx/os2/wx.rc in your resources?"));
 224
 225         wxLogSysError(_("Can't create dialog using template '%ul'"), ulDlgTemplate);
 226
 227         return FALSE;
 228     }
 229
 230     //
 231     // Move the dialog to its initial position without forcing repainting
 232     //
 233     int                             nX;
 234     int                             nY;
 235     int                             nWidth;
 236     int                             nHeight;
 237
 238     if (!OS2GetCreateWindowCoords( rPos
 239                                   ,rSize
 240                                   ,nX
 241                                   ,nY
 242                                   ,nWidth
 243                                   ,nHeight
 244                                  ))
 245     {
 246         nX = nWidth = (int)CW_USEDEFAULT;
 247     }
 248
 249     //
 250     // We can't use CW_USEDEFAULT here as we're not calling CreateWindow()
 251     // and passing CW_USEDEFAULT to MoveWindow() results in resizing the
 252     // window to (0, 0) size which breaks quite a lot of things, e.g. the
 253     // sizer calculation in wxSizer::Fit()
 254     //
 255     if (nWidth == (int)CW_USEDEFAULT)
 256     {
 257         //
 258         // The exact number doesn't matter, the dialog will be resized
 259         // again soon anyhow but it should be big enough to allow
 260         // calculation relying on "totalSize - clientSize > 0" work, i.e.
 261         // at least greater than the title bar height
 262         //
 263         nWidth = nHeight = 100;
 264     }
 265     if (nX == (int)CW_USEDEFAULT)
 266     {
 267         //
 268         // Centre it on the screen - what else can we do?
 269         //
 270         wxSize                      vSizeDpy = wxGetDisplaySize();
 271
 272         nX = (vSizeDpy.x - nWidth) / 2;
 273         nY = (vSizeDpy.y - nHeight) / 2;
 274     }
 275     m_backgroundColour.Set(wxString("LIGHT GREY"));
 276
 277     LONG                            lColor = (LONG)m_backgroundColour.GetPixel();
 278
 279     if (!::WinSetPresParam( m_hWnd
 280                            ,PP_BACKGROUNDCOLOR
 281                            ,sizeof(LONG)
 282                            ,(PVOID)&lColor
 283                           ))
 284     {
 285         return FALSE;
 286     }
 287
 288     ::WinSetWindowPos( GetHwnd()
 289                       ,HWND_TOP
 290                       ,nX
 291                       ,nY
 292                       ,nWidth
 293                       ,nHeight
 294                       ,SWP_MOVE | SWP_SIZE | SWP_ZORDER | SWP_SHOW
 295                      );
 296     ::WinQueryWindowPos(GetHwnd(), GetSwp());
 297     m_hFrame = m_hWnd;
 298     SubclassWin(m_hWnd);
 299     return TRUE;
 300 } // end of wxTopLevelWindowOS2::CreateDialog
 301
 302 bool wxTopLevelWindowOS2::CreateFrame(
 303   const wxString&                   rsTitle
 304 , const wxPoint&                    rPos
 305 , const wxSize&                     rSize
 306 )
 307 {
 308     WXDWORD                         lExflags;
 309     WXDWORD                         lFlags = OS2GetCreateWindowFlags(&lExflags);
 310     long                            lStyle = GetWindowStyleFlag();
 311     int                             nX = rPos.x;
 312     int                             nY = rPos.y;
 313     int                             nWidth = rSize.x;
 314     int                             nHeight = rSize.y;
 315     ULONG                           ulStyleFlags = 0L;
 316     ERRORID                         vError;
 317     wxString                        sError;
 318     wxWindow*                       pParent = GetParent();
 319     HWND                            hParent;
 320     HWND                            hFrame;
 321     HWND                            hClient;
 322
 323     if (pParent)
 324         hParent = GetHwndOf(pParent);
 325     else
 326         hParent = HWND_DESKTOP;
 327
 328     if ((lStyle & wxMINIMIZE) || (lStyle & wxICONIZE))
 329         ulStyleFlags |= WS_MINIMIZED;
 330     if (lStyle & wxMAXIMIZE)
 331         ulStyleFlags |= WS_MAXIMIZED;
 332
 333     //
 334     // Clear the visible flag, we always call show
 335     //
 336     ulStyleFlags &= (unsigned long)~WS_VISIBLE;
 337     m_bIconized = FALSE;
 338
 339     //
 340     // Create the frame window:  We break ranks with other ports now
 341     // and instead of calling down into the base wxWindow class' OS2Create
 342     // we do all our own stuff here.  We will set the needed pieces
 343     // of wxWindow manually, here.
 344     //
 345
 346      hFrame = ::WinCreateStdWindow( hParent
 347                                    ,ulStyleFlags          // frame-window style
 348                                    ,(PULONG)&lFlags       // window style
 349                                    ,(PSZ)wxFrameClassName // class name
 350                                    ,(PSZ)rsTitle.c_str()  // window title
 351                                    ,0L                    // default client style
 352                                    ,NULLHANDLE            // resource in executable file
 353                                    ,0                     // resource id
 354                                    ,&hClient              // receives client window handle
 355                                   );
 356     if (!hFrame)
 357     {
 358         vError = ::WinGetLastError(vHabmain);
 359         sError = wxPMErrorToStr(vError);
 360         wxLogError("Error creating frame. Error: %s\n", sError);
 361         return FALSE;
 362     }
 363
 364     //
 365     // wxWindow class' m_hWnd set here and needed associations
 366     //
 367     m_hFrame = hFrame;
 368     m_hWnd   = hClient;
 369     wxAssociateWinWithHandle(m_hWnd, this);
 370     wxAssociateWinWithHandle(m_hFrame, this);
 371
 372     m_backgroundColour.Set(wxString("MEDIUM GREY"));
 373
 374     LONG                            lColor = (LONG)m_backgroundColour.GetPixel();
 375
 376     if (!::WinSetPresParam( m_hWnd
 377                            ,PP_BACKGROUNDCOLOR
 378                            ,sizeof(LONG)
 379                            ,(PVOID)&lColor
 380                           ))
 381     {
 382         vError = ::WinGetLastError(vHabmain);
 383         sError = wxPMErrorToStr(vError);
 384         wxLogError("Error creating frame. Error: %s\n", sError);
 385         return FALSE;
 386     }
 387
 388     //
 389     // Now need to subclass window.  Instead of calling the SubClassWin in wxWindow
 390     // we manually subclass here because we don't want to use the main wxWndProc
 391     // by default
 392     //
 393     m_fnOldWndProc = (WXFARPROC) ::WinSubclassWindow(m_hFrame, (PFNWP)wxFrameMainWndProc);
 394
 395     //
 396     // Now size everything.  If adding a menu the client will need to be resized.
 397     //
 398
 399     if (pParent)
 400     {
 401         nY = pParent->GetSize().y - (nY + nHeight);
 402     }
 403     else
 404     {
 405         RECTL                   vRect;
 406
 407         ::WinQueryWindowRect(HWND_DESKTOP, &vRect);
 408         nY = vRect.yTop - (nY + nHeight);
 409     }
 410     if (!::WinSetWindowPos( m_hFrame
 411                            ,HWND_TOP
 412                            ,nX
 413                            ,nY
 414                            ,nWidth
 415                            ,nHeight
 416                            ,SWP_SIZE | SWP_MOVE | SWP_ACTIVATE | SWP_ZORDER
 417                           ))
 418     {
 419         vError = ::WinGetLastError(vHabmain);
 420         sError = wxPMErrorToStr(vError);
 421         wxLogError("Error sizing frame. Error: %s\n", sError);
 422         return FALSE;
 423     }
 424     lStyle =  ::WinQueryWindowULong( m_hWnd
 425                                     ,QWL_STYLE
 426                                    );
 427     lStyle |= WS_CLIPCHILDREN;
 428     ::WinSetWindowULong( m_hWnd
 429                         ,QWL_STYLE
 430                         ,lStyle
 431                        );
 432     return TRUE;
 433 } // end of wxTopLevelWindowOS2::CreateFrame
 434
 435 bool wxTopLevelWindowOS2::Create(
 436   wxWindow*                         pParent
 437 , wxWindowID                        vId
 438 , const wxString&                   rsTitle
 439 , const wxPoint&                    rPos
 440 , const wxSize&                     rSize
 441 , long                              lStyle
 442 , const wxString&                   rsName
 443 )
 444 {
 445     //
 446     // Init our fields
 447     //
 448     Init();
 449     m_windowStyle = lStyle;
 450     SetName(rsName);
 451     m_windowId = vId == -1 ? NewControlId() : vId;
 452     wxTopLevelWindows.Append(this);
 453     if (pParent)
 454         pParent->AddChild(this);
 455
 456     if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 457     {
 458         //
 459         // We have different dialog templates to allows creation of dialogs
 460         // with & without captions under OS2indows, resizeable or not (but a
 461         // resizeable dialog always has caption - otherwise it would look too
 462         // strange)
 463         //
 464         ULONG                       ulDlgTemplate;
 465
 466         if (lStyle & wxRESIZE_BORDER)
 467             ulDlgTemplate = (ULONG)kResizeableDialog;
 468         else if (lStyle & wxCAPTION)
 469             ulDlgTemplate = (ULONG)kCaptionDialog;
 470         else
 471             ulDlgTemplate = (ULONG)kNoCaptionDialog;
 472         return CreateDialog( ulDlgTemplate
 473                             ,rsTitle
 474                             ,rPos
 475                             ,rSize
 476                            );
 477     }
 478     else // !dialog
 479     {
 480         return CreateFrame( rsTitle
 481                            ,rPos
 482                            ,rSize
 483                           );
 484     }
 485 } // end of wxTopLevelWindowOS2::Create
 486
 487 wxTopLevelWindowOS2::~wxTopLevelWindowOS2()
 488 {
 489     wxTopLevelWindows.DeleteObject(this);
 490
 491     if (wxModelessWindows.Find(this))
 492         wxModelessWindows.DeleteObject(this);
 493
 494     //
 495     // If this is the last top-level window, exit.
 496     //
 497     if (wxTheApp && (wxTopLevelWindows.Number() == 0))
 498     {
 499         wxTheApp->SetTopWindow(NULL);
 500         if ( wxTheApp->GetExitOnFrameDelete() )
 501         {
 502             ::WinPostMsg(NULL, WM_QUIT, 0, 0);
 503         }
 504     }
 505 } // end of wxTopLevelWindowOS2::~wxTopLevelWindowOS2
 506
 507 // ----------------------------------------------------------------------------
 508 // wxTopLevelWindowOS2 client size
 509 // ----------------------------------------------------------------------------
 510
 511 void wxTopLevelWindowOS2::DoSetClientSize(
 512   int                               nWidth
 513 , int                               nHeight
 514 )
 515 {
 516     //
 517     // Call GetClientAreaOrigin() to take the toolbar into account
 518     //
 519     wxPoint                         vPt = GetClientAreaOrigin();
 520
 521     nWidth  += vPt.x;
 522     nHeight += vPt.y;
 523
 524     wxWindow::DoSetClientSize( nWidth
 525                               ,nHeight
 526                              );
 527 } // end of wxTopLevelWindowOS2::DoSetClientSize
 528
 529 void wxTopLevelWindowOS2::DoGetClientSize(
 530   int*                              pnX
 531 , int*                              pnY
 532 ) const
 533 {
 534     wxWindow::DoGetClientSize( pnX
 535                               ,pnY
 536                              );
 537
 538     wxPoint                         vPt = GetClientAreaOrigin();
 539
 540     if (pnX)
 541         *pnX -= vPt.x;
 542
 543     if (pnY)
 544         *pnY += vPt.y;
 545 } // end of wxTopLevelWindowOS2::DoGetClientSize
 546
 547 // ----------------------------------------------------------------------------
 548 // wxTopLevelWindowOS2 showing
 549 // ----------------------------------------------------------------------------
 550
 551 void wxTopLevelWindowOS2::DoShowWindow(
 552   int                               nShowCmd
 553 )
 554 {
 555     ::WinShowWindow(m_hFrame, (BOOL)(nShowCmd & SWP_SHOW));
 556
 557     //
 558     // Need to artificially send a size event as wxApps often expect to do some
 559     // final child control sizing
 560     SendSizeEvent();
 561     m_bIconized = nShowCmd == SWP_MINIMIZE;
 562 } // end of wxTopLevelWindowOS2::DoShowWindow
 563
 564 bool wxTopLevelWindowOS2::Show(
 565   bool                              bShow
 566 )
 567 {
 568     int                             nShowCmd;
 569     SWP                             vSwp;
 570     RECTL                           vRect;
 571
 572     if (bShow)
 573     {
 574         if (m_bMaximizeOnShow)
 575         {
 576             nShowCmd = SWP_MAXIMIZE;
 577             m_bMaximizeOnShow = FALSE;
 578         }
 579         else
 580         {
 581             nShowCmd = SWP_SHOW;
 582         }
 583     }
 584     else // hide
 585     {
 586         nShowCmd = SWP_HIDE;
 587     }
 588     DoShowWindow(nShowCmd);
 589
 590     if (bShow)
 591     {
 592         wxActivateEvent             vEvent(wxEVT_ACTIVATE, TRUE, m_windowId);
 593
 594         ::WinQueryWindowPos(m_hFrame, &vSwp);
 595         m_bIconized = vSwp.fl & SWP_MINIMIZE;
 596         ::WinQueryWindowPos(m_hWnd, &m_vSwpClient);
 597         ::WinSendMsg(m_hFrame, WM_UPDATEFRAME, (MPARAM)~0, 0);
 598         ::WinQueryWindowPos(m_hWnd, &vSwp);
 599         ::WinEnableWindow(m_hFrame, TRUE);
 600
 601         //
 602         // Deal with children
 603         //
 604         MoveChildren(m_vSwpClient.cy - vSwp.cy);
 605         vEvent.SetEventObject(this);
 606         GetEventHandler()->ProcessEvent(vEvent);
 607     }
 608     else
 609     {
 610         //
 611         // Try to highlight the correct window (the parent)
 612         //
 613         if (GetParent())
 614         {
 615             HWND                    hWndParent = GetHwndOf(GetParent());
 616
 617             ::WinQueryWindowPos(hWndParent, &vSwp);
 618             m_bIconized = vSwp.fl & SWP_MINIMIZE;
 619             if (hWndParent)
 620                 ::WinSetWindowPos( hWndParent
 621                                   ,HWND_TOP
 622                                   ,vSwp.x
 623                                   ,vSwp.y
 624                                   ,vSwp.cx
 625                                   ,vSwp.cy
 626                                   ,SWP_ZORDER | SWP_ACTIVATE | SWP_SHOW | SWP_MOVE
 627                                  );
 628             ::WinEnableWindow(hWndParent, TRUE);
 629         }
 630     }
 631     return TRUE;
 632 } // end of wxTopLevelWindowOS2::Show
 633
 634 // ----------------------------------------------------------------------------
 635 // wxTopLevelWindowOS2 maximize/minimize
 636 // ----------------------------------------------------------------------------
 637
 638 void wxTopLevelWindowOS2::Maximize(
 639   bool                              bMaximize
 640 )
 641 {
 642     if (IsShown())
 643     {
 644         //
 645         // Just maximize it directly
 646         //
 647         DoShowWindow(bMaximize ? SWP_MAXIMIZE : SWP_RESTORE);
 648     }
 649     else // hidden
 650     {
 651         //
 652         // We can't maximize the hidden frame because it shows it as well, so
 653         // just remember that we should do it later in this case
 654         //
 655         m_bMaximizeOnShow = TRUE;
 656     }
 657 } // end of wxTopLevelWindowOS2::Maximize
 658
 659 bool wxTopLevelWindowOS2::IsMaximized() const
 660 {
 661     bool                            bIconic;
 662
 663     ::WinQueryWindowPos(m_hFrame, (PSWP)&m_vSwp);
 664     return (m_vSwp.fl & SWP_MAXIMIZE);
 665 } // end of wxTopLevelWindowOS2::IsMaximized
 666
 667 void wxTopLevelWindowOS2::Iconize(
 668   bool                              bIconize
 669 )
 670 {
 671     DoShowWindow(bIconize ? SWP_MINIMIZE : SWP_RESTORE);
 672 } // end of wxTopLevelWindowOS2::Iconize
 673
 674 bool wxTopLevelWindowOS2::IsIconized() const
 675 {
 676     // also update the current state
 677     ::WinQueryWindowPos(m_hFrame, (PSWP)&m_vSwp);
 678     if (m_vSwp.fl & SWP_MINIMIZE)
 679         ((wxTopLevelWindow*)this)->m_bIconized = TRUE;
 680     else
 681         ((wxTopLevelWindow*)this)->m_bIconized = FALSE;
 682     return m_bIconized;
 683 } // end of wxTopLevelWindowOS2::IsIconized
 684
 685 void wxTopLevelWindowOS2::Restore()
 686 {
 687     DoShowWindow(SWP_RESTORE);
 688 } // end of wxTopLevelWindowOS2::Restore
 689
 690 // generate an artificial resize event
 691 void wxTopLevelWindowOS2::SendSizeEvent()
 692 {
 693     if (!m_bIconized)
 694     {
 695         RECTL                       vRect = wxGetWindowRect(GetHwnd());
 696
 697         (void)::WinPostMsg( m_hFrame
 698                            ,WM_SIZE
 699                            ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 700                            ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 701                           );
 702     }
 703 } // end of wxTopLevelWindowOS2::SendSizeEvent
 704
 705 // ----------------------------------------------------------------------------
 706 // wxTopLevelWindowOS2 fullscreen
 707 // ----------------------------------------------------------------------------
 708
 709 bool wxTopLevelWindowOS2::ShowFullScreen(
 710   bool                              bShow
 711 , long                              lStyle
 712 )
 713 {
 714     if (bShow)
 715     {
 716         if (IsFullScreen())
 717             return FALSE;
 718
 719         m_bFsIsShowing = TRUE;
 720         m_lFsStyle = lStyle;
 721
 722         //
 723         // Zap the frame borders
 724         //
 725
 726         //
 727         // Save the 'normal' window lStyle
 728         //
 729         m_lFsOldWindowStyle = ::WinQueryWindowULong( (HWND)GetHWND()
 730                                                     ,QWL_STYLE
 731                                                    );
 732
 733         //
 734         // Save the old position, width & height, maximize state
 735         //
 736         m_vFsOldSize = GetRect();
 737         m_bFsIsMaximized = IsMaximized();
 738
 739         //
 740         // Decide which window lStyle flags to turn off
 741         //
 742         LONG                        lNewStyle = m_lFsOldWindowStyle;
 743         LONG                        lOffFlags = 0;
 744
 745         if (lStyle & wxFULLSCREEN_NOBORDER)
 746             lOffFlags |= FCF_BORDER;
 747         if (lStyle & wxFULLSCREEN_NOCAPTION)
 748             lOffFlags |= (FCF_TASKLIST | FCF_SYSMENU);
 749
 750         lNewStyle &= (~lOffFlags);
 751
 752         //
 753         // Change our window style to be compatible with full-screen mode
 754         //
 755         ::WinSetWindowULong( (HWND)GetHWND()
 756                             ,QWL_STYLE
 757                             ,lNewStyle
 758                            );
 759
 760         //
 761         // Resize to the size of the desktop
 762         //
 763         int                         nWidth;
 764         int                         nHeight;
 765         RECTL                       vRect = wxGetWindowRect(HWND_DESKTOP);
 766
 767         nWidth = vRect.xRight - vRect.xLeft;
 768         nHeight = vRect.yTop - vRect.yBottom;
 769
 770         SetSize( nWidth
 771                 ,nHeight
 772                );
 773
 774         //
 775         // Now flush the window style cache and actually go full-screen
 776         //
 777         ::WinSetWindowPos( m_hFrame
 778                           ,HWND_TOP
 779                           ,0
 780                           ,0
 781                           ,nWidth
 782                           ,nHeight
 783                           ,SWP_SIZE | SWP_MOVE
 784                          );
 785
 786         wxSizeEvent                 vEvent( wxSize( nWidth
 787                                                    ,nHeight
 788                                                   )
 789                                            ,GetId()
 790                                           );
 791
 792         GetEventHandler()->ProcessEvent(vEvent);
 793         return TRUE;
 794     }
 795     else
 796     {
 797         if (!IsFullScreen())
 798             return FALSE;
 799
 800         m_bFsIsShowing = FALSE;
 801         Maximize(m_bFsIsMaximized);
 802         ::WinSetWindowULong( (HWND)GetHWND()
 803                             ,QWL_STYLE
 804                             ,m_lFsOldWindowStyle
 805                            );
 806         ::WinSetWindowPos( m_hFrame
 807                           ,HWND_TOP
 808                           ,m_vFsOldSize.x
 809                           ,m_vFsOldSize.y
 810                           ,m_vFsOldSize.width
 811                           ,m_vFsOldSize.height
 812                           ,SWP_SIZE | SWP_MOVE
 813                          );
 814         return TRUE;
 815     }
 816 } // end of wxTopLevelWindowOS2::ShowFullScreen
 817
 818 // ----------------------------------------------------------------------------
 819 // wxTopLevelWindowOS2 misc
 820 // ----------------------------------------------------------------------------
 821
 822 void wxTopLevelWindowOS2::SetIcon(
 823   const wxIcon&                     rIcon
 824 )
 825 {
 826     //
 827     // This sets m_icon
 828     //
 829     wxTopLevelWindowBase::SetIcon(rIcon);
 830
 831     if (m_icon.Ok())
 832     {
 833         ::WinSendMsg( m_hFrame
 834                      ,WM_SETICON
 835                      ,(MPARAM)((HPOINTER)m_icon.GetHICON())
 836                      ,NULL
 837                     );
 838         ::WinSendMsg( m_hFrame
 839                      ,WM_UPDATEFRAME
 840                      ,(MPARAM)FCF_ICON
 841                      ,(MPARAM)0
 842                     );
 843     }
 844 } // end of wxTopLevelWindowOS2::SetIcon
 845
 846 bool wxTopLevelWindowOS2::EnableCloseButton(
 847   bool                              bEnable
 848 )
 849 {
 850     //
 851     // Get system (a.k.a. window) menu
 852     //
 853     HMENU                           hMenu = ::WinWindowFromID(m_hFrame, FID_SYSMENU);
 854
 855     if (!hMenu)
 856     {
 857         wxLogLastError(_T("GetSystemMenu"));
 858         return FALSE;
 859     }
 860
 861     //
 862     // Enabling/disabling the close item from it also automatically
 863     // disables/enables the close title bar button
 864     //
 865     if (bEnable)
 866         (void)::WinSendMsg( hMenu
 867                            ,MM_SETITEMATTR
 868                            ,MPFROM2SHORT(SC_CLOSE, FALSE)
 869                            ,MPFROM2SHORT(MIA_DISABLED, FALSE)
 870                           );
 871     else
 872         (void)::WinSendMsg( hMenu
 873                            ,MM_SETITEMATTR
 874                            ,MPFROM2SHORT(SC_CLOSE, FALSE)
 875                            ,MPFROM2SHORT(MIA_DISABLED, MIA_DISABLED)
 876                           );
 877
 878     //
 879     // Update appearance immediately
 880     //
 881     ::WinSendMsg( m_hFrame
 882                  ,WM_UPDATEFRAME
 883                  ,(MPARAM)FCF_MENU
 884                  ,(MPARAM)0
 885                 );
 886     return TRUE;
 887 } // end of wxTopLevelWindowOS2::EnableCloseButton
 888