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 wxWindow*            wxTopLevelWindowOS2::m_spHiddenParent = NULL;
  61
  62 // ============================================================================
  63 // wxTopLevelWindowOS2 implementation
  64 // ============================================================================
  65
  66 BEGIN_EVENT_TABLE(wxTopLevelWindowOS2, wxTopLevelWindowBase)
  67     EVT_ACTIVATE(wxTopLevelWindowOS2::OnActivate)
  68 END_EVENT_TABLE()
  69
  70 // ============================================================================
  71 // wxTopLevelWindowMSW implementation
  72 // ============================================================================
  73
  74 // Dialog window proc
  75 MRESULT EXPENTRY wxDlgProc( HWND WXUNUSED(hWnd)
  76                            ,UINT uMessage
  77                            ,MPARAM WXUNUSED(wParam)
  78                            ,MPARAM WXUNUSED(lParam)
  79                           )
  80 {
  81     switch(uMessage)
  82     {
  83         case WM_INITDLG:
  84             //
  85             // For this message, returning TRUE tells system to set focus to
  86             // the first control in the dialog box, but we set the focus
  87             // ourselves, however in OS/2 we must return true to enable the dialog
  88             //
  89             return (MRESULT)TRUE;
  90         default:
  91             //
  92             // For all the other ones, FALSE means that we didn't process the
  93             // message
  94             //
  95             return (MRESULT)FALSE;
  96     }
  97 } // end of wxDlgProc
  98
  99 // ----------------------------------------------------------------------------
 100 // wxTopLevelWindowOS2 creation
 101 // ----------------------------------------------------------------------------
 102
 103 void wxTopLevelWindowOS2::Init()
 104 {
 105     m_bIconized = m_bMaximizeOnShow = FALSE;
 106
 107     //
 108     // Unlike (almost?) all other windows, frames are created hidden
 109     //
 110     m_isShown = FALSE;
 111
 112     //
 113     // Data to save/restore when calling ShowFullScreen
 114     m_lFsStyle          = 0;
 115     m_lFsOldWindowStyle = 0;
 116     m_bFsIsMaximized    = FALSE;
 117     m_bFsIsShowing      = FALSE;
 118
 119     m_hFrame    = NULLHANDLE;
 120     memset(&m_vSwp, 0, sizeof(SWP));
 121     memset(&m_vSwpClient, 0, sizeof(SWP));
 122     m_pWinLastFocused = (wxWindow *)NULL;
 123 } // end of wxTopLevelWindowIOS2::Init
 124
 125 void wxTopLevelWindowOS2::OnActivate(
 126   wxActivateEvent&                  rEvent
 127 )
 128 {
 129     if (rEvent.GetActive())
 130     {
 131         //
 132         // Restore focus to the child which was last focused
 133         //
 134         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), m_hWnd);
 135
 136         wxWindow*                   pParent = m_pWinLastFocused ? m_pWinLastFocused->GetParent()
 137                                                                 : NULL;
 138         if (!pParent)
 139         {
 140             pParent = this;
 141         }
 142
 143         wxSetFocusToChild( pParent
 144                           ,&m_pWinLastFocused
 145                          );
 146     }
 147     else // deactivating
 148     {
 149         //
 150         // Remember the last focused child if it is our child
 151         //
 152         m_pWinLastFocused = FindFocus();
 153
 154         //
 155         // So we NULL it out if it's a child from some other frame
 156         //
 157         wxWindow*                   pWin = m_pWinLastFocused;
 158
 159         while (pWin)
 160         {
 161             if (pWin->IsTopLevel())
 162             {
 163                 if (pWin != this)
 164                 {
 165                     m_pWinLastFocused = NULL;
 166                 }
 167                 break;
 168             }
 169             pWin = pWin->GetParent();
 170         }
 171
 172         wxLogTrace(_T("focus"),
 173                    _T("wxTLW %08x deactivated, last focused: %08x."),
 174                    m_hWnd,
 175                    m_pWinLastFocused ? GetHwndOf(m_pWinLastFocused)
 176                                      : NULL);
 177         rEvent.Skip();
 178     }
 179 } // end of wxTopLevelWindowOS2::OnActivate
 180
 181 WXDWORD wxTopLevelWindowOS2::OS2GetStyle(
 182   long                              lStyle
 183 , WXDWORD*                          pdwExflags
 184 ) const
 185 {
 186     long                            lMsflags = wxWindow::OS2GetStyle( (lStyle & ~wxBORDER_MASK) | wxBORDER_NONE
 187                                                                      ,pdwExflags
 188                                                                     );
 189
 190     if (lStyle == wxDEFAULT_FRAME_STYLE)
 191         lMsflags |= FCF_SIZEBORDER | FCF_TITLEBAR | FCF_SYSMENU |
 192                     FCF_MINMAX | FCF_TASKLIST;
 193     else
 194     {
 195         if ((lStyle & wxCAPTION) == wxCAPTION)
 196             lMsflags |= FCF_TASKLIST;
 197         else
 198             lMsflags |= FCF_NOMOVEWITHOWNER;
 199
 200         if ((lStyle & wxVSCROLL) == wxVSCROLL)
 201             lMsflags |= FCF_VERTSCROLL;
 202         if ((lStyle & wxHSCROLL) == wxHSCROLL)
 203             lMsflags |= FCF_HORZSCROLL;
 204         if (lStyle & wxMINIMIZE_BOX)
 205             lMsflags |= FCF_MINBUTTON;
 206         if (lStyle & wxMAXIMIZE_BOX)
 207             lMsflags |= FCF_MAXBUTTON;
 208         if (lStyle & wxTHICK_FRAME)
 209             lMsflags |= FCF_DLGBORDER;
 210         if (lStyle & wxSYSTEM_MENU)
 211             lMsflags |= FCF_SYSMENU;
 212         if (lStyle & wxCAPTION)
 213             lMsflags |= FCF_TASKLIST;
 214         if (lStyle & wxCLIP_CHILDREN)
 215         {
 216             // Invalid for frame windows under PM
 217         }
 218
 219         if (lStyle & wxTINY_CAPTION_VERT)
 220             lMsflags |= FCF_TASKLIST;
 221         if (lStyle & wxTINY_CAPTION_HORIZ)
 222             lMsflags |= FCF_TASKLIST;
 223
 224         if ((lStyle & wxTHICK_FRAME) == 0)
 225             lMsflags |= FCF_BORDER;
 226         if (lStyle & wxFRAME_TOOL_WINDOW)
 227             *pdwExflags = kFrameToolWindow;
 228
 229         if (lStyle & wxSTAY_ON_TOP)
 230             lMsflags |= FCF_SYSMODAL;
 231     }
 232     return lMsflags;
 233 } // end of wxTopLevelWindowOS2::OS2GetCreateWindowFlags
 234
 235 WXHWND wxTopLevelWindowOS2::OS2GetParent() const
 236 {
 237     //
 238     // For the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 239     // parent HWND or it would be always on top of its parent which is not what
 240     // we usually want (in fact, we only want it for frames with the
 241     // wxFRAME_FLOAT_ON_PARENT flag)
 242     //
 243     wxWindow*                           pParent;
 244
 245     if (HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 246     {
 247         pParent = GetParent();
 248
 249         // this flag doesn't make sense then and will be ignored
 250         wxASSERT_MSG( pParent,
 251                       _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 252     }
 253     else // don't float on parent, must not be owned
 254     {
 255         pParent = NULL;
 256     }
 257     if (HasFlag(wxFRAME_NO_TASKBAR) && !pParent)
 258     {
 259         if (!m_spHiddenParent)
 260         {
 261             m_spHiddenParent = new wxTopLevelWindowOS2(NULL, -1, _T(""));
 262
 263             //
 264             // We shouldn't leave it in wxTopLevelWindows or we wouldn't
 265             // terminate the app when the last user-created frame is deleted --
 266             // see ~wxTopLevelWindowMSW
 267             //
 268             wxTopLevelWindows.DeleteObject(m_spHiddenParent);
 269         }
 270         pParent = m_spHiddenParent;
 271     }
 272     return pParent ? pParent->GetHWND() : NULL;
 273 } // end of wxTopLevelWindowOS2::OS2GetParent
 274
 275 bool wxTopLevelWindowOS2::CreateDialog(
 276   ULONG                             ulDlgTemplate
 277 , const wxString&                   rsTitle
 278 , const wxPoint&                    rPos
 279 , const wxSize&                     rSize
 280 )
 281 {
 282     wxWindow*                       pParent = GetParent();
 283
 284     //
 285     // For the dialogs without wxDIALOG_NO_PARENT style, use the top level
 286     // app window as parent - this avoids creating modal dialogs without
 287     // parent
 288     //
 289     if (!pParent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT))
 290     {
 291         pParent = wxTheApp->GetTopWindow();
 292
 293         if (pParent)
 294         {
 295             //
 296             // Don't use transient windows as parents, this is dangerous as it
 297             // can lead to a crash if the parent is destroyed before the child
 298             //
 299             // also don't use the window which is currently hidden as then the
 300             // dialog would be hidden as well
 301             if ((pParent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 302                  !pParent->IsShown())
 303             {
 304                 pParent = NULL;
 305             }
 306         }
 307     }
 308
 309     HWND                            hWndDlg;
 310     HWND                            hWndOwner;
 311
 312     if (pParent)
 313         hWndOwner = GetHwndOf(pParent);
 314     else
 315         hWndOwner = HWND_DESKTOP;
 316
 317     hWndDlg = ::WinLoadDlg( HWND_DESKTOP
 318                            ,hWndOwner
 319                            ,(PFNWP)wxDlgProc
 320                            ,NULL
 321                            ,(ULONG)ulDlgTemplate
 322                            ,(PVOID)this
 323                           );
 324
 325     m_hWnd = (WXHWND) hWndDlg;
 326
 327     if ( !m_hWnd )
 328     {
 329         wxFAIL_MSG(_("Did you forget to include wx/os2/wx.rc in your resources?"));
 330
 331         wxLogSysError(_("Can't create dialog using template '%ul'"), ulDlgTemplate);
 332
 333         return FALSE;
 334     }
 335
 336     //
 337     // Move the dialog to its initial position without forcing repainting
 338     //
 339     int                             nX;
 340     int                             nY;
 341     int                             nWidth;
 342     int                             nHeight;
 343
 344     if (!OS2GetCreateWindowCoords( rPos
 345                                   ,rSize
 346                                   ,nX
 347                                   ,nY
 348                                   ,nWidth
 349                                   ,nHeight
 350                                  ))
 351     {
 352         nX = nWidth = (int)CW_USEDEFAULT;
 353     }
 354
 355     //
 356     // We can't use CW_USEDEFAULT here as we're not calling CreateWindow()
 357     // and passing CW_USEDEFAULT to MoveWindow() results in resizing the
 358     // window to (0, 0) size which breaks quite a lot of things, e.g. the
 359     // sizer calculation in wxSizer::Fit()
 360     //
 361     if (nWidth == (int)CW_USEDEFAULT)
 362     {
 363         //
 364         // The exact number doesn't matter, the dialog will be resized
 365         // again soon anyhow but it should be big enough to allow
 366         // calculation relying on "totalSize - clientSize > 0" work, i.e.
 367         // at least greater than the title bar height
 368         //
 369         nWidth = nHeight = 100;
 370     }
 371     if (nX == (int)CW_USEDEFAULT)
 372     {
 373         //
 374         // Centre it on the screen - what else can we do?
 375         //
 376         wxSize                      vSizeDpy = wxGetDisplaySize();
 377
 378         nX = (vSizeDpy.x - nWidth) / 2;
 379         nY = (vSizeDpy.y - nHeight) / 2;
 380     }
 381     m_backgroundColour.Set(wxString("LIGHT GREY"));
 382
 383     LONG                            lColor = (LONG)m_backgroundColour.GetPixel();
 384
 385     if (!::WinSetPresParam( m_hWnd
 386                            ,PP_BACKGROUNDCOLOR
 387                            ,sizeof(LONG)
 388                            ,(PVOID)&lColor
 389                           ))
 390     {
 391         return FALSE;
 392     }
 393
 394     ::WinSetWindowPos( GetHwnd()
 395                       ,HWND_TOP
 396                       ,nX
 397                       ,nY
 398                       ,nWidth
 399                       ,nHeight
 400                       ,SWP_MOVE | SWP_SIZE | SWP_ZORDER | SWP_SHOW | SWP_ACTIVATE
 401                      );
 402     ::WinQueryWindowPos(GetHwnd(), GetSwp());
 403     m_hFrame = m_hWnd;
 404     SubclassWin(m_hWnd);
 405     return TRUE;
 406 } // end of wxTopLevelWindowOS2::CreateDialog
 407
 408 bool wxTopLevelWindowOS2::CreateFrame(
 409   const wxString&                   rsTitle
 410 , const wxPoint&                    rPos
 411 , const wxSize&                     rSize
 412 )
 413 {
 414     WXDWORD                         lExflags;
 415     WXDWORD                         lFlags = OS2GetCreateWindowFlags(&lExflags);
 416     long                            lStyle = GetWindowStyleFlag();
 417     int                             nX = rPos.x;
 418     int                             nY = rPos.y;
 419     int                             nWidth = rSize.x;
 420     int                             nHeight = rSize.y;
 421     ULONG                           ulStyleFlags = 0L;
 422     ERRORID                         vError;
 423     wxString                        sError;
 424     wxWindow*                       pParent = GetParent();
 425     HWND                            hParent;
 426     HWND                            hFrame;
 427     HWND                            hClient;
 428
 429     if (pParent)
 430         hParent = GetHwndOf(pParent);
 431     else
 432         hParent = HWND_DESKTOP;
 433
 434     if ((lStyle & wxMINIMIZE) || (lStyle & wxICONIZE))
 435         ulStyleFlags |= WS_MINIMIZED;
 436     if (lStyle & wxMAXIMIZE)
 437         ulStyleFlags |= WS_MAXIMIZED;
 438
 439     //
 440     // Clear the visible flag, we always call show
 441     //
 442     ulStyleFlags &= (unsigned long)~WS_VISIBLE;
 443     m_bIconized = FALSE;
 444
 445     //
 446     // Create the frame window:  We break ranks with other ports now
 447     // and instead of calling down into the base wxWindow class' OS2Create
 448     // we do all our own stuff here.  We will set the needed pieces
 449     // of wxWindow manually, here.
 450     //
 451
 452      hFrame = ::WinCreateStdWindow( hParent
 453                                    ,ulStyleFlags          // frame-window style
 454                                    ,(PULONG)&lFlags       // window style
 455                                    ,(PSZ)wxFrameClassName // class name
 456                                    ,(PSZ)rsTitle.c_str()  // window title
 457                                    ,0L                    // default client style
 458                                    ,NULLHANDLE            // resource in executable file
 459                                    ,0                     // resource id
 460                                    ,&hClient              // receives client window handle
 461                                   );
 462     if (!hFrame)
 463     {
 464         vError = ::WinGetLastError(vHabmain);
 465         sError = wxPMErrorToStr(vError);
 466         wxLogError("Error creating frame. Error: %s\n", sError);
 467         return FALSE;
 468     }
 469
 470     //
 471     // wxWindow class' m_hWnd set here and needed associations
 472     //
 473     m_hFrame = hFrame;
 474     m_hWnd   = hClient;
 475     wxAssociateWinWithHandle(m_hWnd, this);
 476     wxAssociateWinWithHandle(m_hFrame, this);
 477
 478     m_backgroundColour.Set(wxString("MEDIUM GREY"));
 479
 480     LONG                            lColor = (LONG)m_backgroundColour.GetPixel();
 481
 482     if (!::WinSetPresParam( m_hWnd
 483                            ,PP_BACKGROUNDCOLOR
 484                            ,sizeof(LONG)
 485                            ,(PVOID)&lColor
 486                           ))
 487     {
 488         vError = ::WinGetLastError(vHabmain);
 489         sError = wxPMErrorToStr(vError);
 490         wxLogError("Error creating frame. Error: %s\n", sError);
 491         return FALSE;
 492     }
 493
 494     //
 495     // Now need to subclass window.  Instead of calling the SubClassWin in wxWindow
 496     // we manually subclass here because we don't want to use the main wxWndProc
 497     // by default
 498     //
 499     m_fnOldWndProc = (WXFARPROC) ::WinSubclassWindow(m_hFrame, (PFNWP)wxFrameMainWndProc);
 500
 501     //
 502     // Now size everything.  If adding a menu the client will need to be resized.
 503     //
 504
 505     if (pParent)
 506     {
 507         nY = pParent->GetSize().y - (nY + nHeight);
 508     }
 509     else
 510     {
 511         RECTL                   vRect;
 512
 513         ::WinQueryWindowRect(HWND_DESKTOP, &vRect);
 514         nY = vRect.yTop - (nY + nHeight);
 515     }
 516     if (!::WinSetWindowPos( m_hFrame
 517                            ,HWND_TOP
 518                            ,nX
 519                            ,nY
 520                            ,nWidth
 521                            ,nHeight
 522                            ,SWP_SIZE | SWP_MOVE | SWP_ACTIVATE | SWP_ZORDER
 523                           ))
 524     {
 525         vError = ::WinGetLastError(vHabmain);
 526         sError = wxPMErrorToStr(vError);
 527         wxLogError("Error sizing frame. Error: %s\n", sError);
 528         return FALSE;
 529     }
 530     lStyle =  ::WinQueryWindowULong( m_hWnd
 531                                     ,QWL_STYLE
 532                                    );
 533     lStyle |= WS_CLIPCHILDREN;
 534     ::WinSetWindowULong( m_hWnd
 535                         ,QWL_STYLE
 536                         ,lStyle
 537                        );
 538     return TRUE;
 539 } // end of wxTopLevelWindowOS2::CreateFrame
 540
 541 bool wxTopLevelWindowOS2::Create(
 542   wxWindow*                         pParent
 543 , wxWindowID                        vId
 544 , const wxString&                   rsTitle
 545 , const wxPoint&                    rPos
 546 , const wxSize&                     rSize
 547 , long                              lStyle
 548 , const wxString&                   rsName
 549 )
 550 {
 551     //
 552     // Init our fields
 553     //
 554     Init();
 555     m_windowStyle = lStyle;
 556     SetName(rsName);
 557     m_windowId = vId == -1 ? NewControlId() : vId;
 558     wxTopLevelWindows.Append(this);
 559     if (pParent)
 560         pParent->AddChild(this);
 561
 562     if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 563     {
 564         //
 565         // We have different dialog templates to allows creation of dialogs
 566         // with & without captions under OS2indows, resizeable or not (but a
 567         // resizeable dialog always has caption - otherwise it would look too
 568         // strange)
 569         //
 570         ULONG                       ulDlgTemplate;
 571
 572         if (lStyle & wxRESIZE_BORDER)
 573             ulDlgTemplate = (ULONG)kResizeableDialog;
 574         else if (lStyle & wxCAPTION)
 575             ulDlgTemplate = (ULONG)kCaptionDialog;
 576         else
 577             ulDlgTemplate = (ULONG)kNoCaptionDialog;
 578         return CreateDialog( ulDlgTemplate
 579                             ,rsTitle
 580                             ,rPos
 581                             ,rSize
 582                            );
 583     }
 584     else // !dialog
 585     {
 586         return CreateFrame( rsTitle
 587                            ,rPos
 588                            ,rSize
 589                           );
 590     }
 591 } // end of wxTopLevelWindowOS2::Create
 592
 593 wxTopLevelWindowOS2::~wxTopLevelWindowOS2()
 594 {
 595     wxTopLevelWindows.DeleteObject(this);
 596
 597     if (wxModelessWindows.Find(this))
 598         wxModelessWindows.DeleteObject(this);
 599
 600     //
 601     // If this is the last top-level window, exit.
 602     //
 603     if (wxTheApp && (wxTopLevelWindows.Number() == 0))
 604     {
 605         wxTheApp->SetTopWindow(NULL);
 606         if ( wxTheApp->GetExitOnFrameDelete() )
 607         {
 608             ::WinPostMsg(NULL, WM_QUIT, 0, 0);
 609         }
 610     }
 611 } // end of wxTopLevelWindowOS2::~wxTopLevelWindowOS2
 612
 613 // ----------------------------------------------------------------------------
 614 // wxTopLevelWindowOS2 client size
 615 // ----------------------------------------------------------------------------
 616
 617 void wxTopLevelWindowOS2::DoSetClientSize(
 618   int                               nWidth
 619 , int                               nHeight
 620 )
 621 {
 622     //
 623     // Call GetClientAreaOrigin() to take the toolbar into account
 624     //
 625     wxPoint                         vPt = GetClientAreaOrigin();
 626
 627     nWidth  += vPt.x;
 628     nHeight += vPt.y;
 629
 630     wxWindow::DoSetClientSize( nWidth
 631                               ,nHeight
 632                              );
 633 } // end of wxTopLevelWindowOS2::DoSetClientSize
 634
 635 void wxTopLevelWindowOS2::DoGetClientSize(
 636   int*                              pnX
 637 , int*                              pnY
 638 ) const
 639 {
 640     wxWindow::DoGetClientSize( pnX
 641                               ,pnY
 642                              );
 643
 644     wxPoint                         vPt = GetClientAreaOrigin();
 645
 646     if (pnX)
 647         *pnX -= vPt.x;
 648
 649     if (pnY)
 650         *pnY += vPt.y;
 651 } // end of wxTopLevelWindowOS2::DoGetClientSize
 652
 653 // ----------------------------------------------------------------------------
 654 // wxTopLevelWindowOS2 showing
 655 // ----------------------------------------------------------------------------
 656
 657 void wxTopLevelWindowOS2::DoShowWindow(
 658   int                               nShowCmd
 659 )
 660 {
 661     ::WinShowWindow(m_hFrame, (BOOL)(nShowCmd & SWP_SHOW));
 662
 663     //
 664     // Need to artificially send a size event as wxApps often expect to do some
 665     // final child control sizing
 666     SendSizeEvent();
 667     m_bIconized = nShowCmd == SWP_MINIMIZE;
 668 } // end of wxTopLevelWindowOS2::DoShowWindow
 669
 670 bool wxTopLevelWindowOS2::Show(
 671   bool                              bShow
 672 )
 673 {
 674     int                             nShowCmd;
 675     SWP                             vSwp;
 676     RECTL                           vRect;
 677
 678     if (bShow)
 679     {
 680         if (m_bMaximizeOnShow)
 681         {
 682             nShowCmd = SWP_MAXIMIZE;
 683             m_bMaximizeOnShow = FALSE;
 684         }
 685         else
 686         {
 687             nShowCmd = SWP_SHOW;
 688         }
 689     }
 690     else // hide
 691     {
 692         nShowCmd = SWP_HIDE;
 693     }
 694     DoShowWindow(nShowCmd);
 695
 696     if (bShow)
 697     {
 698         wxActivateEvent             vEvent(wxEVT_ACTIVATE, TRUE, m_windowId);
 699
 700         ::WinQueryWindowPos(m_hFrame, &vSwp);
 701         m_bIconized = vSwp.fl & SWP_MINIMIZE;
 702         ::WinQueryWindowPos(m_hWnd, &m_vSwpClient);
 703         ::WinSendMsg(m_hFrame, WM_UPDATEFRAME, (MPARAM)~0, 0);
 704         ::WinQueryWindowPos(m_hWnd, &vSwp);
 705         ::WinEnableWindow(m_hFrame, TRUE);
 706
 707         //
 708         // Deal with children
 709         //
 710         MoveChildren(m_vSwpClient.cy - vSwp.cy);
 711         vEvent.SetEventObject(this);
 712         GetEventHandler()->ProcessEvent(vEvent);
 713     }
 714     else
 715     {
 716         //
 717         // Try to highlight the correct window (the parent)
 718         //
 719         if (GetParent())
 720         {
 721             HWND                    hWndParent = GetHwndOf(GetParent());
 722
 723             ::WinQueryWindowPos(hWndParent, &vSwp);
 724             m_bIconized = vSwp.fl & SWP_MINIMIZE;
 725             ::WinEnableWindow(hWndParent, TRUE);
 726         }
 727     }
 728     return TRUE;
 729 } // end of wxTopLevelWindowOS2::Show
 730
 731 // ----------------------------------------------------------------------------
 732 // wxTopLevelWindowOS2 maximize/minimize
 733 // ----------------------------------------------------------------------------
 734
 735 void wxTopLevelWindowOS2::Maximize(
 736   bool                              bMaximize
 737 )
 738 {
 739     if (IsShown())
 740     {
 741         //
 742         // Just maximize it directly
 743         //
 744         DoShowWindow(bMaximize ? SWP_MAXIMIZE : SWP_RESTORE);
 745     }
 746     else // hidden
 747     {
 748         //
 749         // We can't maximize the hidden frame because it shows it as well, so
 750         // just remember that we should do it later in this case
 751         //
 752         m_bMaximizeOnShow = TRUE;
 753     }
 754 } // end of wxTopLevelWindowOS2::Maximize
 755
 756 bool wxTopLevelWindowOS2::IsMaximized() const
 757 {
 758     bool                            bIconic;
 759
 760     ::WinQueryWindowPos(m_hFrame, (PSWP)&m_vSwp);
 761     return (m_vSwp.fl & SWP_MAXIMIZE);
 762 } // end of wxTopLevelWindowOS2::IsMaximized
 763
 764 void wxTopLevelWindowOS2::Iconize(
 765   bool                              bIconize
 766 )
 767 {
 768     DoShowWindow(bIconize ? SWP_MINIMIZE : SWP_RESTORE);
 769 } // end of wxTopLevelWindowOS2::Iconize
 770
 771 bool wxTopLevelWindowOS2::IsIconized() const
 772 {
 773     // also update the current state
 774     ::WinQueryWindowPos(m_hFrame, (PSWP)&m_vSwp);
 775     if (m_vSwp.fl & SWP_MINIMIZE)
 776         ((wxTopLevelWindow*)this)->m_bIconized = TRUE;
 777     else
 778         ((wxTopLevelWindow*)this)->m_bIconized = FALSE;
 779     return m_bIconized;
 780 } // end of wxTopLevelWindowOS2::IsIconized
 781
 782 void wxTopLevelWindowOS2::Restore()
 783 {
 784     DoShowWindow(SWP_RESTORE);
 785 } // end of wxTopLevelWindowOS2::Restore
 786
 787 // generate an artificial resize event
 788 void wxTopLevelWindowOS2::SendSizeEvent()
 789 {
 790     if (!m_bIconized)
 791     {
 792         RECTL                       vRect = wxGetWindowRect(GetHwnd());
 793
 794         (void)::WinPostMsg( m_hFrame
 795                            ,WM_SIZE
 796                            ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 797                            ,MPFROM2SHORT(vRect.xRight - vRect.xLeft, vRect.yTop - vRect.yBottom)
 798                           );
 799     }
 800 } // end of wxTopLevelWindowOS2::SendSizeEvent
 801
 802 // ----------------------------------------------------------------------------
 803 // wxTopLevelWindowOS2 fullscreen
 804 // ----------------------------------------------------------------------------
 805
 806 bool wxTopLevelWindowOS2::ShowFullScreen(
 807   bool                              bShow
 808 , long                              lStyle
 809 )
 810 {
 811     if (bShow)
 812     {
 813         if (IsFullScreen())
 814             return FALSE;
 815
 816         m_bFsIsShowing = TRUE;
 817         m_lFsStyle = lStyle;
 818
 819         //
 820         // Zap the frame borders
 821         //
 822
 823         //
 824         // Save the 'normal' window lStyle
 825         //
 826         m_lFsOldWindowStyle = ::WinQueryWindowULong( (HWND)GetHWND()
 827                                                     ,QWL_STYLE
 828                                                    );
 829
 830         //
 831         // Save the old position, width & height, maximize state
 832         //
 833         m_vFsOldSize = GetRect();
 834         m_bFsIsMaximized = IsMaximized();
 835
 836         //
 837         // Decide which window lStyle flags to turn off
 838         //
 839         LONG                        lNewStyle = m_lFsOldWindowStyle;
 840         LONG                        lOffFlags = 0;
 841
 842         if (lStyle & wxFULLSCREEN_NOBORDER)
 843             lOffFlags |= FCF_BORDER;
 844         if (lStyle & wxFULLSCREEN_NOCAPTION)
 845             lOffFlags |= (FCF_TASKLIST | FCF_SYSMENU);
 846
 847         lNewStyle &= (~lOffFlags);
 848
 849         //
 850         // Change our window style to be compatible with full-screen mode
 851         //
 852         ::WinSetWindowULong( (HWND)GetHWND()
 853                             ,QWL_STYLE
 854                             ,lNewStyle
 855                            );
 856
 857         //
 858         // Resize to the size of the desktop
 859         //
 860         int                         nWidth;
 861         int                         nHeight;
 862         RECTL                       vRect = wxGetWindowRect(HWND_DESKTOP);
 863
 864         nWidth = vRect.xRight - vRect.xLeft;
 865         nHeight = vRect.yTop - vRect.yBottom;
 866
 867         SetSize( nWidth
 868                 ,nHeight
 869                );
 870
 871         //
 872         // Now flush the window style cache and actually go full-screen
 873         //
 874         ::WinSetWindowPos( m_hFrame
 875                           ,HWND_TOP
 876                           ,0
 877                           ,0
 878                           ,nWidth
 879                           ,nHeight
 880                           ,SWP_SIZE | SWP_MOVE
 881                          );
 882
 883         wxSizeEvent                 vEvent( wxSize( nWidth
 884                                                    ,nHeight
 885                                                   )
 886                                            ,GetId()
 887                                           );
 888
 889         GetEventHandler()->ProcessEvent(vEvent);
 890         return TRUE;
 891     }
 892     else
 893     {
 894         if (!IsFullScreen())
 895             return FALSE;
 896
 897         m_bFsIsShowing = FALSE;
 898         Maximize(m_bFsIsMaximized);
 899         ::WinSetWindowULong( (HWND)GetHWND()
 900                             ,QWL_STYLE
 901                             ,m_lFsOldWindowStyle
 902                            );
 903         ::WinSetWindowPos( m_hFrame
 904                           ,HWND_TOP
 905                           ,m_vFsOldSize.x
 906                           ,m_vFsOldSize.y
 907                           ,m_vFsOldSize.width
 908                           ,m_vFsOldSize.height
 909                           ,SWP_SIZE | SWP_MOVE
 910                          );
 911         return TRUE;
 912     }
 913 } // end of wxTopLevelWindowOS2::ShowFullScreen
 914
 915 // ----------------------------------------------------------------------------
 916 // wxTopLevelWindowOS2 misc
 917 // ----------------------------------------------------------------------------
 918
 919 void wxTopLevelWindowOS2::SetIcon(
 920   const wxIcon&                     rIcon
 921 )
 922 {
 923     SetIcons(wxIconBundle(rIcon));
 924 } // end of wxTopLevelWindowOS2::SetIcon
 925
 926 void wxTopLevelWindowOS2::SetIcons(
 927   const wxIconBundle&               rIcons
 928 )
 929 {
 930     //
 931     // This sets m_icon
 932     //
 933     wxTopLevelWindowBase::SetIcons(rIcons);
 934
 935     const wxIcon&                   vIcon = rIcons.GetIcon(wxSize(32, 32));
 936
 937     if (vIcon.Ok() && vIcon.GetWidth() == 32 && vIcon.GetHeight() == 32)
 938     {
 939         ::WinSendMsg( m_hFrame
 940                      ,WM_SETICON
 941                      ,(MPARAM)((HPOINTER)vIcon.GetHICON())
 942                      ,NULL
 943                     );
 944         ::WinSendMsg( m_hFrame
 945                      ,WM_UPDATEFRAME
 946                      ,(MPARAM)FCF_ICON
 947                      ,(MPARAM)0
 948                     );
 949     }
 950 } // end of wxTopLevelWindowOS2::SetIcon
 951
 952 bool wxTopLevelWindowOS2::EnableCloseButton(
 953   bool                              bEnable
 954 )
 955 {
 956     //
 957     // Get system (a.k.a. window) menu
 958     //
 959     HMENU                           hMenu = ::WinWindowFromID(m_hFrame, FID_SYSMENU);
 960
 961     if (!hMenu)
 962     {
 963         wxLogLastError(_T("GetSystemMenu"));
 964         return FALSE;
 965     }
 966
 967     //
 968     // Enabling/disabling the close item from it also automatically
 969     // disables/enables the close title bar button
 970     //
 971     if (bEnable)
 972         (void)::WinSendMsg( hMenu
 973                            ,MM_SETITEMATTR
 974                            ,MPFROM2SHORT(SC_CLOSE, FALSE)
 975                            ,MPFROM2SHORT(MIA_DISABLED, FALSE)
 976                           );
 977     else
 978         (void)::WinSendMsg( hMenu
 979                            ,MM_SETITEMATTR
 980                            ,MPFROM2SHORT(SC_CLOSE, FALSE)
 981                            ,MPFROM2SHORT(MIA_DISABLED, MIA_DISABLED)
 982                           );
 983
 984     //
 985     // Update appearance immediately
 986     //
 987     ::WinSendMsg( m_hFrame
 988                  ,WM_UPDATEFRAME
 989                  ,(MPARAM)FCF_MENU
 990                  ,(MPARAM)0
 991                 );
 992     return TRUE;
 993 } // end of wxTopLevelWindowOS2::EnableCloseButton
 994