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