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 licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  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/module.h"
  42
  43 #include "wx/msw/private.h"
  44 #if defined(__WXWINCE__)
  45   #include <ole2.h>
  46   #include <shellapi.h>
  47   #if _WIN32_WCE < 400
  48     #include <aygshell.h>
  49   #endif
  50 #include "wx/msw/wince/missing.h"
  51 #endif
  52
  53 #include "wx/msw/missing.h"
  54 #include "wx/msw/winundef.h"
  55
  56 // This can't be undefed in winundef.h or
  57 // there are further errors
  58 #if defined(__WXWINCE__) && defined(CreateDialog)
  59 #undef CreateDialog
  60 #endif
  61
  62 #include "wx/display.h"
  63
  64 #ifndef ICON_BIG
  65     #define ICON_BIG 1
  66 #endif
  67
  68 #ifndef ICON_SMALL
  69     #define ICON_SMALL 0
  70 #endif
  71
  72 // ----------------------------------------------------------------------------
  73 // stubs for missing functions under MicroWindows
  74 // ----------------------------------------------------------------------------
  75
  76 #ifdef __WXMICROWIN__
  77
  78 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return FALSE; }
  79 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return FALSE; }
  80
  81 #endif // __WXMICROWIN__
  82
  83 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
  84 //     is not included by wxUniv build which does need wxDlgProc
  85 LONG APIENTRY _EXPORT
  86 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  87
  88 // ----------------------------------------------------------------------------
  89 // globals
  90 // ----------------------------------------------------------------------------
  91
  92 // list of all frames and modeless dialogs
  93 wxWindowList wxModelessWindows;
  94
  95 // the name of the default wxWindows class
  96 extern const wxChar *wxCanvasClassName;
  97
  98 // ----------------------------------------------------------------------------
  99 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
 100 // module to ensure that the window is always deleted)
 101 // ----------------------------------------------------------------------------
 102
 103 class wxTLWHiddenParentModule : public wxModule
 104 {
 105 public:
 106     // module init/finalize
 107     virtual bool OnInit();
 108     virtual void OnExit();
 109
 110     // get the hidden window (creates on demand)
 111     static HWND GetHWND();
 112
 113 private:
 114     // the HWND of the hidden parent
 115     static HWND ms_hwnd;
 116
 117     // the class used to create it
 118     static const wxChar *ms_className;
 119
 120     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 121 };
 122
 123 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 124
 125 // ============================================================================
 126 // wxTopLevelWindowMSW implementation
 127 // ============================================================================
 128
 129 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
 130     EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
 131 END_EVENT_TABLE()
 132
 133 // ----------------------------------------------------------------------------
 134 // wxTopLevelWindowMSW creation
 135 // ----------------------------------------------------------------------------
 136
 137 void wxTopLevelWindowMSW::Init()
 138 {
 139     m_iconized =
 140     m_maximizeOnShow = FALSE;
 141
 142     // unlike (almost?) all other windows, frames are created hidden
 143     m_isShown = FALSE;
 144
 145     // Data to save/restore when calling ShowFullScreen
 146     m_fsStyle = 0;
 147     m_fsOldWindowStyle = 0;
 148     m_fsIsMaximized = FALSE;
 149     m_fsIsShowing = FALSE;
 150
 151     m_winLastFocused = (wxWindow *)NULL;
 152 }
 153
 154 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 155 {
 156     // let the base class deal with the common styles but fix the ones which
 157     // don't make sense for us (we also deal with the borders ourselves)
 158     WXDWORD msflags = wxWindow::MSWGetStyle
 159                       (
 160                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 161                       ) & ~WS_CHILD & ~WS_VISIBLE;
 162
 163     // first select the kind of window being created
 164     //
 165     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 166     // creates a window with both caption and border, hence we also test it
 167     // below in some other cases
 168     if ( style & wxFRAME_TOOL_WINDOW )
 169         msflags |= WS_POPUP;
 170     else
 171     {
 172 #ifdef __WXWINCE__
 173         if (msflags & WS_BORDER)
 174 #endif
 175             msflags |= WS_OVERLAPPED;
 176     }
 177
 178     // border and caption styles
 179     if ( style & wxRESIZE_BORDER )
 180     {
 181 #ifndef __WXWINCE__
 182         msflags |= WS_THICKFRAME;
 183 #endif
 184     }
 185     else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
 186         *exflags |= WS_EX_DLGMODALFRAME;
 187     else if ( !(style & wxBORDER_NONE) )
 188         msflags |= WS_BORDER;
 189 #ifndef __WXWINCE__
 190     else
 191         msflags |= WS_POPUP;
 192 #endif
 193
 194     if ( style & wxCAPTION )
 195         msflags |= WS_CAPTION;
 196 #ifndef __WXWINCE__
 197     else
 198         msflags |= WS_POPUP;
 199 #endif
 200
 201     // next translate the individual flags
 202     if ( style & wxMINIMIZE_BOX )
 203         msflags |= WS_MINIMIZEBOX;
 204     if ( style & wxMAXIMIZE_BOX )
 205         msflags |= WS_MAXIMIZEBOX;
 206     if ( style & wxSYSTEM_MENU )
 207         msflags |= WS_SYSMENU;
 208 #ifndef __WXWINCE__
 209     if ( style & wxMINIMIZE )
 210         msflags |= WS_MINIMIZE;
 211     if ( style & wxMAXIMIZE )
 212         msflags |= WS_MAXIMIZE;
 213 #endif
 214
 215     // Keep this here because it saves recoding this function in wxTinyFrame
 216 #if wxUSE_ITSY_BITSY && !defined(__WIN32__)
 217     if ( style & wxTINY_CAPTION_VERT )
 218         msflags |= IBS_VERTCAPTION;
 219     if ( style & wxTINY_CAPTION_HORIZ )
 220         msflags |= IBS_HORZCAPTION;
 221 #else
 222     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 223         msflags |= WS_CAPTION;
 224 #endif
 225
 226     if ( exflags )
 227     {
 228 #if !defined(__WIN16__)
 229         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 230         {
 231             if ( style & wxFRAME_TOOL_WINDOW )
 232             {
 233                 // create the palette-like window
 234                 *exflags |= WS_EX_TOOLWINDOW;
 235
 236                 // tool windows shouldn't appear on the taskbar (as documented)
 237                 style |= wxFRAME_NO_TASKBAR;
 238             }
 239
 240             // We have to solve 2 different problems here:
 241             //
 242             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 243             //    taskbar even if they don't have a parent
 244             //
 245             // 2. frames without this style should appear in the taskbar even
 246             //    if they're owned (Windows only puts non owned windows into
 247             //    the taskbar normally)
 248             //
 249             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 250             // first one is dealt with in our MSWGetParent() method
 251             // implementation
 252 #ifndef __WXWINCE__
 253             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 254             {
 255                 // need to force the frame to appear in the taskbar
 256                 *exflags |= WS_EX_APPWINDOW;
 257             }
 258 #endif
 259             //else: nothing to do [here]
 260         }
 261 #endif // !Win16
 262
 263         if ( style & wxSTAY_ON_TOP )
 264             *exflags |= WS_EX_TOPMOST;
 265
 266 #ifdef __WIN32__
 267         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 268             *exflags |= WS_EX_CONTEXTHELP;
 269 #endif // __WIN32__
 270     }
 271
 272     return msflags;
 273 }
 274
 275 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 276 {
 277     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 278     // parent HWND or it would be always on top of its parent which is not what
 279     // we usually want (in fact, we only want it for frames with the
 280     // wxFRAME_FLOAT_ON_PARENT flag)
 281     HWND hwndParent = NULL;
 282     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 283     {
 284         const wxWindow *parent = GetParent();
 285
 286         if ( !parent )
 287         {
 288             // this flag doesn't make sense then and will be ignored
 289             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 290         }
 291         else
 292         {
 293             hwndParent = GetHwndOf(parent);
 294         }
 295     }
 296     //else: don't float on parent, must not be owned
 297
 298     // now deal with the 2nd taskbar-related problem (see comments above in
 299     // MSWGetStyle())
 300     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 301     {
 302         // use hidden parent
 303         hwndParent = wxTLWHiddenParentModule::GetHWND();
 304     }
 305
 306     return (WXHWND)hwndParent;
 307 }
 308
 309 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 310                                        const wxString& title,
 311                                        const wxPoint& pos,
 312                                        const wxSize& size)
 313 {
 314 #ifdef __WXMICROWIN__
 315     // no dialogs support under MicroWin yet
 316     return CreateFrame(title, pos, size);
 317 #else // !__WXMICROWIN__
 318     wxWindow *parent = GetParent();
 319
 320     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 321     // app window as parent - this avoids creating modal dialogs without
 322     // parent
 323     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 324     {
 325         parent = wxTheApp->GetTopWindow();
 326
 327         if ( parent )
 328         {
 329             // don't use transient windows as parents, this is dangerous as it
 330             // can lead to a crash if the parent is destroyed before the child
 331             //
 332             // also don't use the window which is currently hidden as then the
 333             // dialog would be hidden as well
 334             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 335                     !parent->IsShown() )
 336             {
 337                 parent = NULL;
 338             }
 339         }
 340     }
 341
 342     m_hWnd = (WXHWND)::CreateDialogIndirect
 343                        (
 344                         wxGetInstance(),
 345                         (DLGTEMPLATE*)dlgTemplate,
 346                         parent ? GetHwndOf(parent) : NULL,
 347                         (DLGPROC)wxDlgProc
 348                        );
 349
 350     if ( !m_hWnd )
 351     {
 352         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 353
 354         wxLogSysError(wxT("Can't create dialog using memory template"));
 355
 356         return FALSE;
 357     }
 358
 359     WXDWORD exflags;
 360     (void)MSWGetCreateWindowFlags(&exflags);
 361
 362     if ( exflags )
 363     {
 364         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 365         ::SetWindowPos(GetHwnd(),
 366                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 367                        0, 0, 0, 0,
 368                        SWP_NOSIZE |
 369                        SWP_NOMOVE |
 370                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 371                        SWP_NOACTIVATE);
 372     }
 373
 374 #if defined(__WIN95__)
 375     // For some reason, the system menu is activated when we use the
 376     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 377     if ( exflags & WS_EX_CONTEXTHELP )
 378     {
 379         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 380         if ( winTop )
 381         {
 382             wxIcon icon = winTop->GetIcon();
 383             if ( icon.Ok() )
 384             {
 385                 ::SendMessage(GetHwnd(), WM_SETICON,
 386                               (WPARAM)TRUE,
 387                               (LPARAM)GetHiconOf(icon));
 388             }
 389         }
 390     }
 391 #endif // __WIN95__
 392
 393     // move the dialog to its initial position without forcing repainting
 394     int x, y, w, h;
 395     (void)MSWGetCreateWindowCoords(pos, size, x, y, w, h);
 396
 397     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 398     {
 399         wxLogLastError(wxT("MoveWindow"));
 400     }
 401
 402     if ( !title.empty() )
 403     {
 404         ::SetWindowText(GetHwnd(), title);
 405     }
 406
 407     SubclassWin(m_hWnd);
 408
 409     return TRUE;
 410 #endif // __WXMICROWIN__/!__WXMICROWIN__
 411 }
 412
 413 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 414                                       const wxPoint& pos,
 415                                       const wxSize& size)
 416 {
 417     WXDWORD exflags;
 418     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 419
 420     return MSWCreate(wxCanvasClassName, title, pos, size, flags, exflags);
 421 }
 422
 423 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 424                                  wxWindowID id,
 425                                  const wxString& title,
 426                                  const wxPoint& pos,
 427                                  const wxSize& size,
 428                                  long style,
 429                                  const wxString& name)
 430 {
 431     bool ret wxDUMMY_INITIALIZE(false);
 432     int w, h;
 433
 434     // init our fields
 435     Init();
 436     w = WidthDefault(size.x);
 437     h = HeightDefault(size.y);
 438
 439     m_windowStyle = style;
 440
 441     SetName(name);
 442
 443     m_windowId = id == -1 ? NewControlId() : id;
 444
 445     wxTopLevelWindows.Append(this);
 446
 447     if ( parent )
 448         parent->AddChild(this);
 449
 450     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 451     {
 452         // we have different dialog templates to allows creation of dialogs
 453         // with & without captions under MSWindows, resizeable or not (but a
 454         // resizeable dialog always has caption - otherwise it would look too
 455         // strange)
 456
 457         // we need 3 additional WORDs for dialog menu, class and title (as we
 458         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 459         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 460         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 461         memset(dlgTemplate, 0, dlgsize);
 462
 463         // these values are arbitrary, they won't be used normally anyhow
 464         dlgTemplate->x  = 34;
 465         dlgTemplate->y  = 22;
 466         dlgTemplate->cx = 144;
 467         dlgTemplate->cy = 75;
 468
 469         // reuse the code in MSWGetStyle() but correct the results slightly for
 470         // the dialog
 471         dlgTemplate->style = MSWGetStyle(style, NULL);
 472
 473         // all dialogs are popups
 474         dlgTemplate->style |= WS_POPUP;
 475
 476         // force 3D-look if necessary, it looks impossibly ugly otherwise
 477         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 478             dlgTemplate->style |= DS_MODALFRAME;
 479
 480         ret = CreateDialog(dlgTemplate, title, pos, wxSize(w,h));
 481         free(dlgTemplate);
 482     }
 483     else // !dialog
 484     {
 485         ret = CreateFrame(title, pos, wxSize(w,h));
 486     }
 487
 488     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 489     {
 490         EnableCloseButton(false);
 491     }
 492
 493     // for some reason we need to manually send ourselves this message as
 494     // otherwise the mnemonics are always shown -- even if they're configured
 495     // to be hidden until "Alt" is pressed in the control panel
 496     //
 497     // this could indicate a bug somewhere else but for now this is the only
 498     // fix we have
 499     if ( ret )
 500     {
 501         SendMessage
 502         (
 503             GetHwnd(),
 504             WM_UPDATEUISTATE,
 505             MAKEWPARAM(UIS_INITIALIZE, UISF_HIDEFOCUS | UISF_HIDEACCEL),
 506             0
 507         );
 508     }
 509
 510     return ret;
 511 }
 512
 513 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 514 {
 515     if ( wxModelessWindows.Find(this) )
 516         wxModelessWindows.DeleteObject(this);
 517
 518     // after destroying an owned window, Windows activates the next top level
 519     // window in Z order but it may be different from our owner (to reproduce
 520     // this simply Alt-TAB to another application and back before closing the
 521     // owned frame) whereas we always want to yield activation to our parent
 522     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 523     {
 524         wxWindow *parent = GetParent();
 525         if ( parent )
 526         {
 527             ::BringWindowToTop(GetHwndOf(parent));
 528         }
 529     }
 530 }
 531
 532 // ----------------------------------------------------------------------------
 533 // wxTopLevelWindowMSW showing
 534 // ----------------------------------------------------------------------------
 535
 536 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 537 {
 538     ::ShowWindow(GetHwnd(), nShowCmd);
 539
 540     m_iconized = nShowCmd == SW_MINIMIZE;
 541 }
 542
 543 bool wxTopLevelWindowMSW::Show(bool show)
 544 {
 545     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 546     if ( !wxWindowBase::Show(show) )
 547         return FALSE;
 548
 549     int nShowCmd;
 550     if ( show )
 551     {
 552         if ( m_maximizeOnShow )
 553         {
 554             // show and maximize
 555             nShowCmd = SW_MAXIMIZE;
 556
 557             m_maximizeOnShow = FALSE;
 558         }
 559         else // just show
 560         {
 561            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 562                nShowCmd = SW_SHOWNA;
 563            else
 564                nShowCmd = SW_SHOW;
 565         }
 566     }
 567     else // hide
 568     {
 569         nShowCmd = SW_HIDE;
 570     }
 571
 572     DoShowWindow(nShowCmd);
 573
 574     if ( show )
 575     {
 576         ::BringWindowToTop(GetHwnd());
 577
 578         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
 579         event.SetEventObject( this );
 580         GetEventHandler()->ProcessEvent(event);
 581     }
 582     else // hide
 583     {
 584         // Try to highlight the correct window (the parent)
 585         if ( GetParent() )
 586         {
 587             HWND hWndParent = GetHwndOf(GetParent());
 588             if (hWndParent)
 589                 ::BringWindowToTop(hWndParent);
 590         }
 591     }
 592
 593     return TRUE;
 594 }
 595
 596 // ----------------------------------------------------------------------------
 597 // wxTopLevelWindowMSW maximize/minimize
 598 // ----------------------------------------------------------------------------
 599
 600 void wxTopLevelWindowMSW::Maximize(bool maximize)
 601 {
 602     if ( IsShown() )
 603     {
 604         // just maximize it directly
 605         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 606     }
 607     else // hidden
 608     {
 609         // we can't maximize the hidden frame because it shows it as well, so
 610         // just remember that we should do it later in this case
 611         m_maximizeOnShow = maximize;
 612     }
 613 }
 614
 615 bool wxTopLevelWindowMSW::IsMaximized() const
 616 {
 617 #ifdef __WXWINCE__
 618     return FALSE;
 619 #else
 620     return ::IsZoomed(GetHwnd()) != 0;
 621 #endif
 622 }
 623
 624 void wxTopLevelWindowMSW::Iconize(bool iconize)
 625 {
 626     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 627 }
 628
 629 bool wxTopLevelWindowMSW::IsIconized() const
 630 {
 631 #ifdef __WXWINCE__
 632     return FALSE;
 633 #else
 634     // also update the current state
 635     ((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
 636
 637     return m_iconized;
 638 #endif
 639 }
 640
 641 void wxTopLevelWindowMSW::Restore()
 642 {
 643     DoShowWindow(SW_RESTORE);
 644 }
 645
 646 // ----------------------------------------------------------------------------
 647 // wxTopLevelWindowMSW fullscreen
 648 // ----------------------------------------------------------------------------
 649
 650 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 651 {
 652     if ( show == IsFullScreen() )
 653     {
 654         // nothing to do
 655         return TRUE;
 656     }
 657
 658     m_fsIsShowing = show;
 659
 660     if ( show )
 661     {
 662         m_fsStyle = style;
 663
 664         // zap the frame borders
 665
 666         // save the 'normal' window style
 667         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 668
 669         // save the old position, width & height, maximize state
 670         m_fsOldSize = GetRect();
 671         m_fsIsMaximized = IsMaximized();
 672
 673         // decide which window style flags to turn off
 674         LONG newStyle = m_fsOldWindowStyle;
 675         LONG offFlags = 0;
 676
 677         if (style & wxFULLSCREEN_NOBORDER)
 678         {
 679             offFlags |= WS_BORDER;
 680 #ifndef __WXWINCE__
 681             offFlags |= WS_THICKFRAME;
 682 #endif
 683         }
 684         if (style & wxFULLSCREEN_NOCAPTION)
 685             offFlags |= WS_CAPTION | WS_SYSMENU;
 686
 687         newStyle &= ~offFlags;
 688
 689         // change our window style to be compatible with full-screen mode
 690         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 691
 692         wxRect rect;
 693 #if wxUSE_DISPLAY
 694         // resize to the size of the display containing us
 695         int dpy = wxDisplay::GetFromWindow(this);
 696         if ( dpy != wxNOT_FOUND )
 697         {
 698             rect = wxDisplay(dpy).GetGeometry();
 699         }
 700         else // fall back to the main desktop
 701 #else // wxUSE_DISPLAY
 702         {
 703             // resize to the size of the desktop
 704             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 705 #ifdef __WXWINCE__
 706             // FIXME: size of the bottom menu (toolbar)
 707             // should be taken in account
 708             rect.height += rect.y;
 709             rect.y       = 0;
 710 #endif
 711         }
 712 #endif // wxUSE_DISPLAY
 713
 714         SetSize(rect);
 715
 716         // now flush the window style cache and actually go full-screen
 717         long flags = SWP_FRAMECHANGED;
 718
 719         // showing the frame full screen should also show it if it's still
 720         // hidden
 721         if ( !IsShown() )
 722         {
 723             // don't call wxWindow version to avoid flicker from calling
 724             // ::ShowWindow() -- we're going to show the window at the correct
 725             // location directly below -- but do call the wxWindowBase version
 726             // to sync the internal m_isShown flag
 727             wxWindowBase::Show();
 728
 729             flags |= SWP_SHOWWINDOW;
 730         }
 731
 732         SetWindowPos(GetHwnd(), HWND_TOP,
 733                      rect.x, rect.y, rect.width, rect.height,
 734                      flags);
 735
 736 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 737         ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
 738 #endif
 739
 740         // finally send an event allowing the window to relayout itself &c
 741         wxSizeEvent event(rect.GetSize(), GetId());
 742         GetEventHandler()->ProcessEvent(event);
 743     }
 744     else // stop showing full screen
 745     {
 746 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 747         ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
 748 #endif
 749         Maximize(m_fsIsMaximized);
 750         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 751         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 752             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 753     }
 754
 755     return TRUE;
 756 }
 757
 758 // ----------------------------------------------------------------------------
 759 // wxTopLevelWindowMSW misc
 760 // ----------------------------------------------------------------------------
 761
 762 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 763 {
 764     SetIcons( wxIconBundle( icon ) );
 765 }
 766
 767 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 768 {
 769     wxTopLevelWindowBase::SetIcons(icons);
 770
 771 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 772     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 773     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 774     {
 775         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 776                        (LPARAM)GetHiconOf(sml) );
 777     }
 778
 779     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 780     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 781     {
 782         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 783                        (LPARAM)GetHiconOf(big) );
 784     }
 785 #endif // __WIN95__
 786 }
 787
 788 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 789 {
 790 #if !defined(__WXMICROWIN__)
 791     // get system (a.k.a. window) menu
 792     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 793     if ( !hmenu )
 794     {
 795         // no system menu at all -- ok if we want to remove the close button
 796         // anyhow, but bad if we want to show it
 797         return !enable;
 798     }
 799
 800     // enabling/disabling the close item from it also automatically
 801     // disables/enables the close title bar button
 802     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 803                           MF_BYCOMMAND |
 804                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 805     {
 806         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 807
 808         return FALSE;
 809     }
 810
 811     // update appearance immediately
 812     if ( !::DrawMenuBar(GetHwnd()) )
 813     {
 814         wxLogLastError(_T("DrawMenuBar"));
 815     }
 816 #endif // !__WXMICROWIN__
 817
 818     return TRUE;
 819 }
 820
 821 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 822 {
 823 #ifdef __WXWINCE__
 824     return FALSE;
 825 #else
 826     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), FALSE,
 827                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 828
 829     // The empty region signifies that the shape should be removed from the
 830     // window.
 831     if ( region.IsEmpty() )
 832     {
 833         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 834         {
 835             wxLogLastError(_T("SetWindowRgn"));
 836             return FALSE;
 837         }
 838         return TRUE;
 839     }
 840
 841     // Windows takes ownership of the region, so
 842     // we'll have to make a copy of the region to give to it.
 843     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 844     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 845     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 846     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 847     delete[] (char*) rgnData;
 848
 849     // SetWindowRgn expects the region to be in coordinants
 850     // relative to the window, not the client area.  Figure
 851     // out the offset, if any.
 852     RECT rect;
 853     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 854     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 855     ::GetClientRect(GetHwnd(), &rect);
 856     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
 857     ::OffsetRgn(hrgn, -rect.left, -rect.top);
 858
 859     // Now call the shape API with the new region.
 860     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
 861     {
 862         wxLogLastError(_T("SetWindowRgn"));
 863         return FALSE;
 864     }
 865     return TRUE;
 866 #endif
 867 }
 868
 869 // ----------------------------------------------------------------------------
 870 // wxTopLevelWindow event handling
 871 // ----------------------------------------------------------------------------
 872
 873 // Default activation behaviour - set the focus for the first child
 874 // subwindow found.
 875 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 876 {
 877     if ( event.GetActive() )
 878     {
 879         // restore focus to the child which was last focused unless we already
 880         // have it
 881         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
 882
 883         wxWindow *winFocus = FindFocus();
 884         if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
 885         {
 886             wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 887                                                 : NULL;
 888             if ( !parent )
 889             {
 890                 parent = this;
 891             }
 892
 893             wxSetFocusToChild(parent, &m_winLastFocused);
 894         }
 895     }
 896     else // deactivating
 897     {
 898         // remember the last focused child if it is our child
 899         m_winLastFocused = FindFocus();
 900
 901         if ( m_winLastFocused )
 902         {
 903             // let it know that it doesn't have focus any more
 904             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
 905
 906             // and don't remember it if it's a child from some other frame
 907             if ( wxGetTopLevelParent(m_winLastFocused) != this )
 908             {
 909                 m_winLastFocused = NULL;
 910             }
 911         }
 912
 913         wxLogTrace(_T("focus"),
 914                    _T("wxTLW %08x deactivated, last focused: %08x."),
 915                    (int) m_hWnd,
 916                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
 917                                            : NULL));
 918
 919         event.Skip();
 920     }
 921 }
 922
 923 // the DialogProc for all wxWindows dialogs
 924 LONG APIENTRY _EXPORT
 925 wxDlgProc(HWND WXUNUSED(hDlg),
 926           UINT message,
 927           WPARAM WXUNUSED(wParam),
 928           LPARAM WXUNUSED(lParam))
 929 {
 930     switch ( message )
 931     {
 932         case WM_INITDIALOG:
 933             // for this message, returning TRUE tells system to set focus to
 934             // the first control in the dialog box, but as we set the focus
 935             // ourselves, we return FALSE from here as well, so fall through
 936
 937         default:
 938             // for all the other ones, FALSE means that we didn't process the
 939             // message
 940             return FALSE;
 941     }
 942 }
 943
 944 // ============================================================================
 945 // wxTLWHiddenParentModule implementation
 946 // ============================================================================
 947
 948 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
 949
 950 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
 951
 952 bool wxTLWHiddenParentModule::OnInit()
 953 {
 954     ms_hwnd = NULL;
 955     ms_className = NULL;
 956
 957     return TRUE;
 958 }
 959
 960 void wxTLWHiddenParentModule::OnExit()
 961 {
 962     if ( ms_hwnd )
 963     {
 964         if ( !::DestroyWindow(ms_hwnd) )
 965         {
 966             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
 967         }
 968
 969         ms_hwnd = NULL;
 970     }
 971
 972     if ( ms_className )
 973     {
 974         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
 975         {
 976             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
 977         }
 978
 979         ms_className = NULL;
 980     }
 981 }
 982
 983 /* static */
 984 HWND wxTLWHiddenParentModule::GetHWND()
 985 {
 986     if ( !ms_hwnd )
 987     {
 988         if ( !ms_className )
 989         {
 990             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
 991
 992             WNDCLASS wndclass;
 993             wxZeroMemory(wndclass);
 994
 995             wndclass.lpfnWndProc   = DefWindowProc;
 996             wndclass.hInstance     = wxGetInstance();
 997             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
 998
 999             if ( !::RegisterClass(&wndclass) )
1000             {
1001                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1002             }
1003             else
1004             {
1005                 ms_className = HIDDEN_PARENT_CLASS;
1006             }
1007         }
1008
1009         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1010                                  (HMENU)NULL, wxGetInstance(), NULL);
1011         if ( !ms_hwnd )
1012         {
1013             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1014         }
1015     }
1016
1017     return ms_hwnd;
1018 }
1019
1020