src/msw/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/toplevel.cpp
   3 // Purpose:     implements wxTopLevelWindow for MSW
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     24.09.01
   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/containr.h"        // wxSetFocusToChild()
  39 #endif //WX_PRECOMP
  40
  41 #include "wx/msw/private.h"
  42
  43 #include "wx/popupwin.h"
  44
  45 #ifndef ICON_BIG
  46     #define ICON_BIG 1
  47 #endif
  48
  49 #ifndef ICON_SMALL
  50     #define ICON_SMALL 0
  51 #endif
  52
  53 // ----------------------------------------------------------------------------
  54 // stubs for missing functions under MicroWindows
  55 // ----------------------------------------------------------------------------
  56
  57 #ifdef __WXMICROWIN__
  58
  59 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return FALSE; }
  60 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return FALSE; }
  61
  62 #endif // __WXMICROWIN__
  63
  64 // this is defined in dialog.cpp
  65 LONG APIENTRY _EXPORT
  66 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  67
  68 // ----------------------------------------------------------------------------
  69 // globals
  70 // ----------------------------------------------------------------------------
  71
  72 // list of all frames and modeless dialogs
  73 wxWindowList wxModelessWindows;
  74
  75 // the name of the default wxWindows class
  76 extern const wxChar *wxCanvasClassName;
  77
  78 // the hidden parent for wxFRAME_NO_TASKBAR unowned frames
  79 wxWindow *wxTopLevelWindowMSW::ms_hiddenParent = NULL;
  80
  81 // ============================================================================
  82 // wxTopLevelWindowMSW implementation
  83 // ============================================================================
  84
  85 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
  86     EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
  87 END_EVENT_TABLE()
  88
  89 // ----------------------------------------------------------------------------
  90 // wxTopLevelWindowMSW creation
  91 // ----------------------------------------------------------------------------
  92
  93 void wxTopLevelWindowMSW::Init()
  94 {
  95     m_iconized =
  96     m_maximizeOnShow = FALSE;
  97
  98     // unlike (almost?) all other windows, frames are created hidden
  99     m_isShown = FALSE;
 100
 101     // Data to save/restore when calling ShowFullScreen
 102     m_fsStyle = 0;
 103     m_fsOldWindowStyle = 0;
 104     m_fsIsMaximized = FALSE;
 105     m_fsIsShowing = FALSE;
 106
 107     m_winLastFocused = (wxWindow *)NULL;
 108 }
 109
 110 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 111 {
 112     // let the base class deal with the common styles but fix the ones which
 113     // don't make sense for us (we also deal with the borders ourselves)
 114     WXDWORD msflags = wxWindow::MSWGetStyle
 115                       (
 116                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 117                       ) & ~WS_CHILD;
 118
 119     // first select the kind of window being created
 120     //
 121     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 122     // creates a window with both caption and border, hence we also test it
 123     // below in some other cases
 124     if ( style & wxFRAME_TOOL_WINDOW )
 125         msflags |= WS_POPUP;
 126     else
 127         msflags |= WS_OVERLAPPED;
 128
 129     // border and caption styles
 130     if ( style & wxRESIZE_BORDER )
 131         msflags |= WS_THICKFRAME;
 132     else if ( !(style & wxBORDER_NONE) )
 133         msflags |= WS_BORDER;
 134     else
 135         msflags |= WS_POPUP;
 136
 137     if ( style & wxCAPTION )
 138         msflags |= WS_CAPTION;
 139     else
 140         msflags |= WS_POPUP;
 141
 142     // next translate the individual flags
 143     if ( style & wxMINIMIZE_BOX )
 144         msflags |= WS_MINIMIZEBOX;
 145     if ( style & wxMAXIMIZE_BOX )
 146         msflags |= WS_MAXIMIZEBOX;
 147     if ( style & wxSYSTEM_MENU )
 148         msflags |= WS_SYSMENU;
 149     if ( style & wxMINIMIZE )
 150         msflags |= WS_MINIMIZE;
 151     if ( style & wxMAXIMIZE )
 152         msflags |= WS_MAXIMIZE;
 153
 154     // Keep this here because it saves recoding this function in wxTinyFrame
 155 #if wxUSE_ITSY_BITSY && !defined(__WIN32__)
 156     if ( style & wxTINY_CAPTION_VERT )
 157         msflags |= IBS_VERTCAPTION;
 158     if ( style & wxTINY_CAPTION_HORIZ )
 159         msflags |= IBS_HORZCAPTION;
 160 #else
 161     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 162         msflags |= WS_CAPTION;
 163 #endif
 164
 165     if ( exflags )
 166     {
 167 #if !defined(__WIN16__) && !defined(__SC__)
 168         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 169         {
 170             if ( style & wxFRAME_TOOL_WINDOW )
 171             {
 172                 // create the palette-like window
 173                 *exflags |= WS_EX_TOOLWINDOW;
 174             }
 175
 176             // We have to solve 2 different problems here:
 177             //
 178             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 179             //    taskbar even if they don't have a parent
 180             //
 181             // 2. frames without this style should appear in the taskbar even
 182             //    if they're owned (Windows only puts non owned windows into
 183             //    the taskbar normally)
 184             //
 185             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 186             // first one is dealt with in our MSWGetParent() method
 187             // implementation
 188             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 189             {
 190                 // need to force the frame to appear in the taskbar
 191                 *exflags |= WS_EX_APPWINDOW;
 192             }
 193             //else: nothing to do [here]
 194         }
 195 #endif // !Win16
 196
 197         if ( style & wxSTAY_ON_TOP )
 198             *exflags |= WS_EX_TOPMOST;
 199
 200 #ifdef __WIN32__
 201         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 202             *exflags |= WS_EX_CONTEXTHELP;
 203 #endif // __WIN32__
 204     }
 205
 206     return msflags;
 207 }
 208
 209 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 210 {
 211     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 212     // parent HWND or it would be always on top of its parent which is not what
 213     // we usually want (in fact, we only want it for frames with the
 214     // wxFRAME_FLOAT_ON_PARENT flag)
 215     wxWindow *parent;
 216     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 217     {
 218         parent = GetParent();
 219
 220         // this flag doesn't make sense then and will be ignored
 221         wxASSERT_MSG( parent,
 222                       _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 223     }
 224     else // don't float on parent, must not be owned
 225     {
 226         parent = NULL;
 227     }
 228
 229     // now deal with the 2nd taskbar-related problem (see comments above in
 230     // MSWGetStyle())
 231     if ( HasFlag(wxFRAME_NO_TASKBAR) && !parent )
 232     {
 233         if ( !ms_hiddenParent )
 234         {
 235             ms_hiddenParent = new wxTopLevelWindowMSW(NULL, -1, _T(""));
 236
 237             // we shouldn't leave it in wxTopLevelWindows or we wouldn't
 238             // terminate the app when the last user-created frame is deleted --
 239             // see ~wxTopLevelWindowMSW
 240             wxTopLevelWindows.DeleteObject(ms_hiddenParent);
 241         }
 242
 243         parent = ms_hiddenParent;
 244     }
 245
 246     return parent ? parent->GetHWND() : NULL;
 247 }
 248
 249 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 250                                        const wxString& title,
 251                                        const wxPoint& pos,
 252                                        const wxSize& size)
 253 {
 254 #ifdef __WXMICROWIN__
 255     // no dialogs support under MicroWin yet
 256     return CreateFrame(title, pos, size);
 257 #else // !__WXMICROWIN__
 258     wxWindow *parent = GetParent();
 259
 260     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 261     // app window as parent - this avoids creating modal dialogs without
 262     // parent
 263     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 264     {
 265         parent = wxTheApp->GetTopWindow();
 266
 267         if ( parent )
 268         {
 269             // don't use transient windows as parents, this is dangerous as it
 270             // can lead to a crash if the parent is destroyed before the child
 271             //
 272             // also don't use the window which is currently hidden as then the
 273             // dialog would be hidden as well
 274             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 275                     !parent->IsShown() )
 276             {
 277                 parent = NULL;
 278             }
 279         }
 280     }
 281
 282     m_hWnd = (WXHWND)::CreateDialogIndirect
 283                        (
 284                         wxGetInstance(),
 285                         (DLGTEMPLATE*)dlgTemplate,
 286                         parent ? GetHwndOf(parent) : NULL,
 287                         (DLGPROC)wxDlgProc
 288                        );
 289
 290     if ( !m_hWnd )
 291     {
 292         wxFAIL_MSG(_("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 293
 294         wxLogSysError(_("Can't create dialog using memory template"));
 295
 296         return FALSE;
 297     }
 298
 299     WXDWORD exflags;
 300     (void)MSWGetCreateWindowFlags(&exflags);
 301
 302     if ( exflags )
 303     {
 304         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 305         ::SetWindowPos(GetHwnd(), NULL, 0, 0, 0, 0,
 306                        SWP_NOSIZE |
 307                        SWP_NOMOVE |
 308                        SWP_NOZORDER |
 309                        SWP_NOACTIVATE);
 310     }
 311
 312 #if defined(__WIN95__)
 313     // For some reason, the system menu is activated when we use the
 314     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 315     if ( exflags & WS_EX_CONTEXTHELP )
 316     {
 317         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 318         if ( winTop )
 319         {
 320             wxIcon icon = winTop->GetIcon();
 321             if ( icon.Ok() )
 322             {
 323                 ::SendMessage(GetHwnd(), WM_SETICON,
 324                               (WPARAM)TRUE,
 325                               (LPARAM)GetHiconOf(icon));
 326             }
 327         }
 328     }
 329 #endif // __WIN95__
 330
 331     // move the dialog to its initial position without forcing repainting
 332     int x, y, w, h;
 333     if ( !MSWGetCreateWindowCoords(pos, size, x, y, w, h) )
 334     {
 335         x =
 336         w = (int)CW_USEDEFAULT;
 337     }
 338
 339     // we can't use CW_USEDEFAULT here as we're not calling CreateWindow()
 340     // and passing CW_USEDEFAULT to MoveWindow() results in resizing the
 341     // window to (0, 0) size which breaks quite a lot of things, e.g. the
 342     // sizer calculation in wxSizer::Fit()
 343     if ( w == (int)CW_USEDEFAULT )
 344     {
 345         // the exact number doesn't matter, the dialog will be resized
 346         // again soon anyhow but it should be big enough to allow
 347         // calculation relying on "totalSize - clientSize > 0" work, i.e.
 348         // at least greater than the title bar height
 349         w =
 350         h = 100;
 351     }
 352
 353     if ( x == (int)CW_USEDEFAULT )
 354     {
 355         // centre it on the screen - what else can we do?
 356         wxSize sizeDpy = wxGetDisplaySize();
 357
 358         x = (sizeDpy.x - w) / 2;
 359         y = (sizeDpy.y - h) / 2;
 360     }
 361
 362     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 363     {
 364         wxLogLastError(wxT("MoveWindow"));
 365     }
 366
 367     if ( !title.empty() )
 368     {
 369         ::SetWindowText(GetHwnd(), title);
 370     }
 371
 372     SubclassWin(m_hWnd);
 373
 374     return TRUE;
 375 #endif // __WXMICROWIN__/!__WXMICROWIN__
 376 }
 377
 378 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 379                                       const wxPoint& pos,
 380                                       const wxSize& size)
 381 {
 382     WXDWORD exflags;
 383     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 384
 385     return MSWCreate(wxCanvasClassName, title, pos, size, flags, exflags);
 386 }
 387
 388 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 389                                  wxWindowID id,
 390                                  const wxString& title,
 391                                  const wxPoint& pos,
 392                                  const wxSize& size,
 393                                  long style,
 394                                  const wxString& name)
 395 {
 396     // init our fields
 397     Init();
 398
 399     m_windowStyle = style;
 400
 401     SetName(name);
 402
 403     m_windowId = id == -1 ? NewControlId() : id;
 404
 405     wxTopLevelWindows.Append(this);
 406
 407     if ( parent )
 408         parent->AddChild(this);
 409
 410     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 411     {
 412         // we have different dialog templates to allows creation of dialogs
 413         // with & without captions under MSWindows, resizeable or not (but a
 414         // resizeable dialog always has caption - otherwise it would look too
 415         // strange)
 416
 417         // we need 3 additional WORDs for dialog menu, class and title (as we
 418         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 419         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 420         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 421         memset(dlgTemplate, 0, dlgsize);
 422
 423         // these values are arbitrary, they won't be used normally anyhow
 424         dlgTemplate->x  = 34;
 425         dlgTemplate->y  = 22;
 426         dlgTemplate->cx = 144;
 427         dlgTemplate->cy = 75;
 428
 429         // reuse the code in MSWGetStyle() but correct the results slightly for
 430         // the dialog
 431         dlgTemplate->style = MSWGetStyle(style, NULL);
 432
 433         // all dialogs are popups
 434         dlgTemplate->style |= WS_POPUP;
 435
 436         // force 3D-look if necessary, it looks impossibly ugly otherwise
 437         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 438             dlgTemplate->style |= DS_MODALFRAME;
 439
 440         bool ret = CreateDialog(dlgTemplate, title, pos, size);
 441         free(dlgTemplate);
 442
 443         return ret;
 444     }
 445     else // !dialog
 446     {
 447         return CreateFrame(title, pos, size);
 448     }
 449 }
 450
 451 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 452 {
 453     if ( this == ms_hiddenParent )
 454     {
 455         // stop [infinite] recursion which would otherwise happen when we do
 456         // "delete ms_hiddenParent" below
 457         return;
 458     }
 459
 460     wxTopLevelWindows.DeleteObject(this);
 461
 462     if ( wxModelessWindows.Find(this) )
 463         wxModelessWindows.DeleteObject(this);
 464
 465     // after destroying an owned window, Windows activates the next top level
 466     // window in Z order but it may be different from our owner (to reproduce
 467     // this simply Alt-TAB to another application and back before closing the
 468     // owned frame) whereas we always want to yield activation to our parent
 469     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 470     {
 471         wxWindow *parent = GetParent();
 472         if ( parent )
 473         {
 474             ::BringWindowToTop(GetHwndOf(parent));
 475         }
 476     }
 477
 478     // If this is the last top-level window, exit.
 479     if ( wxTheApp && (wxTopLevelWindows.Number() == 0) )
 480     {
 481         if ( ms_hiddenParent )
 482         {
 483             delete ms_hiddenParent;
 484             ms_hiddenParent = NULL;
 485         }
 486
 487         wxTheApp->SetTopWindow(NULL);
 488
 489         if ( wxTheApp->GetExitOnFrameDelete() )
 490         {
 491             ::PostQuitMessage(0);
 492         }
 493     }
 494 }
 495
 496 // ----------------------------------------------------------------------------
 497 // wxTopLevelWindowMSW showing
 498 // ----------------------------------------------------------------------------
 499
 500 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 501 {
 502     ::ShowWindow(GetHwnd(), nShowCmd);
 503
 504     m_iconized = nShowCmd == SW_MINIMIZE;
 505 }
 506
 507 bool wxTopLevelWindowMSW::Show(bool show)
 508 {
 509     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 510     if ( !wxWindowBase::Show(show) )
 511         return FALSE;
 512
 513     int nShowCmd;
 514     if ( show )
 515     {
 516         if ( m_maximizeOnShow )
 517         {
 518             // show and maximize
 519             nShowCmd = SW_MAXIMIZE;
 520
 521             m_maximizeOnShow = FALSE;
 522         }
 523         else // just show
 524         {
 525             nShowCmd = SW_SHOW;
 526         }
 527     }
 528     else // hide
 529     {
 530         nShowCmd = SW_HIDE;
 531     }
 532
 533     DoShowWindow(nShowCmd);
 534
 535     if ( show )
 536     {
 537         ::BringWindowToTop(GetHwnd());
 538
 539         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
 540         event.SetEventObject( this );
 541         GetEventHandler()->ProcessEvent(event);
 542     }
 543     else // hide
 544     {
 545         // Try to highlight the correct window (the parent)
 546         if ( GetParent() )
 547         {
 548             HWND hWndParent = GetHwndOf(GetParent());
 549             if (hWndParent)
 550                 ::BringWindowToTop(hWndParent);
 551         }
 552     }
 553
 554     return TRUE;
 555 }
 556
 557 // ----------------------------------------------------------------------------
 558 // wxTopLevelWindowMSW maximize/minimize
 559 // ----------------------------------------------------------------------------
 560
 561 void wxTopLevelWindowMSW::Maximize(bool maximize)
 562 {
 563     if ( IsShown() )
 564     {
 565         // just maximize it directly
 566         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 567     }
 568     else // hidden
 569     {
 570         // we can't maximize the hidden frame because it shows it as well, so
 571         // just remember that we should do it later in this case
 572         m_maximizeOnShow = TRUE;
 573     }
 574 }
 575
 576 bool wxTopLevelWindowMSW::IsMaximized() const
 577 {
 578     return ::IsZoomed(GetHwnd()) != 0;
 579 }
 580
 581 void wxTopLevelWindowMSW::Iconize(bool iconize)
 582 {
 583     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 584 }
 585
 586 bool wxTopLevelWindowMSW::IsIconized() const
 587 {
 588     // also update the current state
 589     ((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
 590
 591     return m_iconized;
 592 }
 593
 594 void wxTopLevelWindowMSW::Restore()
 595 {
 596     DoShowWindow(SW_RESTORE);
 597 }
 598
 599 // ----------------------------------------------------------------------------
 600 // wxTopLevelWindowMSW fullscreen
 601 // ----------------------------------------------------------------------------
 602
 603 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 604 {
 605     if (show)
 606     {
 607         if (IsFullScreen())
 608             return FALSE;
 609
 610         m_fsIsShowing = TRUE;
 611         m_fsStyle = style;
 612
 613         // zap the frame borders
 614
 615         // save the 'normal' window style
 616         m_fsOldWindowStyle = GetWindowLong((HWND)GetHWND(), GWL_STYLE);
 617
 618         // save the old position, width & height, maximize state
 619         m_fsOldSize = GetRect();
 620         m_fsIsMaximized = IsMaximized();
 621
 622         // decide which window style flags to turn off
 623         LONG newStyle = m_fsOldWindowStyle;
 624         LONG offFlags = 0;
 625
 626         if (style & wxFULLSCREEN_NOBORDER)
 627             offFlags |= WS_BORDER | WS_THICKFRAME;
 628         if (style & wxFULLSCREEN_NOCAPTION)
 629             offFlags |= (WS_CAPTION | WS_SYSMENU);
 630
 631         newStyle &= (~offFlags);
 632
 633         // change our window style to be compatible with full-screen mode
 634         ::SetWindowLong((HWND)GetHWND(), GWL_STYLE, newStyle);
 635
 636         // resize to the size of the desktop
 637         int width, height;
 638
 639         RECT rect = wxGetWindowRect(::GetDesktopWindow());
 640         width = rect.right - rect.left;
 641         height = rect.bottom - rect.top;
 642
 643         SetSize(width, height);
 644
 645         // now flush the window style cache and actually go full-screen
 646         SetWindowPos((HWND)GetHWND(), HWND_TOP, 0, 0, width, height, SWP_FRAMECHANGED);
 647
 648         wxSizeEvent event(wxSize(width, height), GetId());
 649         GetEventHandler()->ProcessEvent(event);
 650
 651         return TRUE;
 652     }
 653     else
 654     {
 655         if (!IsFullScreen())
 656             return FALSE;
 657
 658         m_fsIsShowing = FALSE;
 659
 660         Maximize(m_fsIsMaximized);
 661         SetWindowLong((HWND)GetHWND(),GWL_STYLE, m_fsOldWindowStyle);
 662         SetWindowPos((HWND)GetHWND(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 663             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 664
 665         return TRUE;
 666     }
 667 }
 668
 669 // ----------------------------------------------------------------------------
 670 // wxTopLevelWindowMSW misc
 671 // ----------------------------------------------------------------------------
 672
 673 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 674 {
 675     SetIcons( wxIconBundle( icon ) );
 676 }
 677
 678 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 679 {
 680     wxTopLevelWindowBase::SetIcons(icons);
 681
 682 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 683     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 684     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 685     {
 686         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 687                        (LPARAM)GetHiconOf(sml) );
 688     }
 689
 690     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 691     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 692     {
 693         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 694                        (LPARAM)GetHiconOf(big) );
 695     }
 696 #endif // __WIN95__
 697 }
 698
 699 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 700 {
 701 #ifndef __WXMICROWIN__
 702     // get system (a.k.a. window) menu
 703     HMENU hmenu = ::GetSystemMenu(GetHwnd(), FALSE /* get it */);
 704     if ( !hmenu )
 705     {
 706         wxLogLastError(_T("GetSystemMenu"));
 707
 708         return FALSE;
 709     }
 710
 711     // enabling/disabling the close item from it also automatically
 712     // disables/enables the close title bar button
 713     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 714                           MF_BYCOMMAND |
 715                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 716     {
 717         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 718
 719         return FALSE;
 720     }
 721
 722     // update appearance immediately
 723     if ( !::DrawMenuBar(GetHwnd()) )
 724     {
 725         wxLogLastError(_T("DrawMenuBar"));
 726     }
 727 #endif // !__WXMICROWIN__
 728
 729     return TRUE;
 730 }
 731
 732 // ----------------------------------------------------------------------------
 733 // wxTopLevelWindow event handling
 734 // ----------------------------------------------------------------------------
 735
 736 // Default activation behaviour - set the focus for the first child
 737 // subwindow found.
 738 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 739 {
 740     if ( event.GetActive() )
 741     {
 742         // restore focus to the child which was last focused
 743         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), m_hWnd);
 744
 745         wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 746                                             : NULL;
 747         if ( !parent )
 748         {
 749             parent = this;
 750         }
 751
 752         wxSetFocusToChild(parent, &m_winLastFocused);
 753     }
 754     else // deactivating
 755     {
 756         // remember the last focused child if it is our child
 757         m_winLastFocused = FindFocus();
 758
 759         // so we NULL it out if it's a child from some other frame
 760         wxWindow *win = m_winLastFocused;
 761         while ( win )
 762         {
 763             if ( win->IsTopLevel() )
 764             {
 765                 if ( win != this )
 766                 {
 767                     m_winLastFocused = NULL;
 768                 }
 769
 770                 break;
 771             }
 772
 773             win = win->GetParent();
 774         }
 775
 776         wxLogTrace(_T("focus"),
 777                    _T("wxTLW %08x deactivated, last focused: %08x."),
 778                    m_hWnd,
 779                    m_winLastFocused ? GetHwndOf(m_winLastFocused)
 780                                     : NULL);
 781
 782         event.Skip();
 783     }
 784 }
 785