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