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/dialog.h"
  35     #include "wx/string.h"
  36     #include "wx/log.h"
  37     #include "wx/intl.h"
  38     #include "wx/frame.h"
  39     #include "wx/containr.h"        // wxSetFocusToChild()
  40 #endif //WX_PRECOMP
  41
  42 #include "wx/module.h"
  43
  44 #include "wx/msw/private.h"
  45 #if defined(__WXWINCE__)
  46   #include <ole2.h>
  47   #include <shellapi.h>
  48   #if _WIN32_WCE < 400
  49     #include <aygshell.h>
  50   #endif
  51 #include "wx/msw/wince/missing.h"
  52 #endif
  53
  54 #include "wx/msw/missing.h"
  55 #include "wx/msw/winundef.h"
  56
  57 #include "wx/display.h"
  58
  59 #ifndef ICON_BIG
  60     #define ICON_BIG 1
  61 #endif
  62
  63 #ifndef ICON_SMALL
  64     #define ICON_SMALL 0
  65 #endif
  66
  67 // ----------------------------------------------------------------------------
  68 // stubs for missing functions under MicroWindows
  69 // ----------------------------------------------------------------------------
  70
  71 #ifdef __WXMICROWIN__
  72
  73 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return FALSE; }
  74 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return FALSE; }
  75
  76 #endif // __WXMICROWIN__
  77
  78 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
  79 //     is not included by wxUniv build which does need wxDlgProc
  80 LONG APIENTRY _EXPORT
  81 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  82
  83 // ----------------------------------------------------------------------------
  84 // globals
  85 // ----------------------------------------------------------------------------
  86
  87 // list of all frames and modeless dialogs
  88 wxWindowList wxModelessWindows;
  89
  90 // the name of the default wxWindows class
  91 extern const wxChar *wxCanvasClassName;
  92
  93 // ----------------------------------------------------------------------------
  94 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
  95 // module to ensure that the window is always deleted)
  96 // ----------------------------------------------------------------------------
  97
  98 class wxTLWHiddenParentModule : public wxModule
  99 {
 100 public:
 101     // module init/finalize
 102     virtual bool OnInit();
 103     virtual void OnExit();
 104
 105     // get the hidden window (creates on demand)
 106     static HWND GetHWND();
 107
 108 private:
 109     // the HWND of the hidden parent
 110     static HWND ms_hwnd;
 111
 112     // the class used to create it
 113     static const wxChar *ms_className;
 114
 115     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 116 };
 117
 118 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 119
 120 // ============================================================================
 121 // wxTopLevelWindowMSW implementation
 122 // ============================================================================
 123
 124 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
 125     EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
 126 END_EVENT_TABLE()
 127
 128 // ----------------------------------------------------------------------------
 129 // wxTopLevelWindowMSW creation
 130 // ----------------------------------------------------------------------------
 131
 132 void wxTopLevelWindowMSW::Init()
 133 {
 134     m_iconized =
 135     m_maximizeOnShow = FALSE;
 136
 137     // Data to save/restore when calling ShowFullScreen
 138     m_fsStyle = 0;
 139     m_fsOldWindowStyle = 0;
 140     m_fsIsMaximized = FALSE;
 141     m_fsIsShowing = FALSE;
 142
 143     m_winLastFocused = (wxWindow *)NULL;
 144 }
 145
 146 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 147 {
 148     // let the base class deal with the common styles but fix the ones which
 149     // don't make sense for us (we also deal with the borders ourselves)
 150     WXDWORD msflags = wxWindow::MSWGetStyle
 151                       (
 152                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 153                       ) & ~WS_CHILD & ~WS_VISIBLE;
 154
 155 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 156     msflags |= WS_VISIBLE;
 157 #endif
 158
 159     // first select the kind of window being created
 160     //
 161     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 162     // creates a window with both caption and border, hence we also test it
 163     // below in some other cases
 164     if ( style & wxFRAME_TOOL_WINDOW )
 165     {
 166         msflags |= WS_POPUP;
 167     }
 168     //else: WS_OVERLAPPED is 0 anyhow, so it is on by default
 169
 170     // border and caption styles
 171     if ( style & wxRESIZE_BORDER )
 172         msflags |= WS_THICKFRAME;
 173     else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
 174         *exflags |= WS_EX_DLGMODALFRAME;
 175     else if ( !(style & wxBORDER_NONE) )
 176         msflags |= WS_BORDER;
 177     else
 178         msflags |= WS_POPUP;
 179
 180     // normally we consider that all windows without caption must be popups,
 181     // but CE is an exception: there windows normally do not have the caption
 182     // but shouldn't be made popups as popups can't have menus and don't look
 183     // like normal windows anyhow
 184     if ( style & wxCAPTION )
 185         msflags |= WS_CAPTION;
 186 #ifndef __WXWINCE__
 187     else
 188         msflags |= WS_POPUP;
 189 #endif // !__WXWINCE__
 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
 199     // NB: under CE these 2 styles are not supported currently, we should
 200     //     call Minimize()/Maximize() "manually" if we want to support them
 201     if ( style & wxMINIMIZE )
 202         msflags |= WS_MINIMIZE;
 203     if ( style & wxMAXIMIZE )
 204         msflags |= WS_MAXIMIZE;
 205
 206     // Keep this here because it saves recoding this function in wxTinyFrame
 207     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 208         msflags |= WS_CAPTION;
 209
 210     if ( exflags )
 211     {
 212         // there is no taskbar under CE, so omit all this
 213 #ifndef __WXWINCE__
 214         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 215         {
 216             if ( style & wxFRAME_TOOL_WINDOW )
 217             {
 218                 // create the palette-like window
 219                 *exflags |= WS_EX_TOOLWINDOW;
 220
 221                 // tool windows shouldn't appear on the taskbar (as documented)
 222                 style |= wxFRAME_NO_TASKBAR;
 223             }
 224
 225             // We have to solve 2 different problems here:
 226             //
 227             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 228             //    taskbar even if they don't have a parent
 229             //
 230             // 2. frames without this style should appear in the taskbar even
 231             //    if they're owned (Windows only puts non owned windows into
 232             //    the taskbar normally)
 233             //
 234             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 235             // first one is dealt with in our MSWGetParent() method
 236             // implementation
 237             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 238             {
 239                 // need to force the frame to appear in the taskbar
 240                 *exflags |= WS_EX_APPWINDOW;
 241             }
 242             //else: nothing to do [here]
 243         }
 244 #endif // !__WXWINCE__
 245
 246         if ( style & wxSTAY_ON_TOP )
 247             *exflags |= WS_EX_TOPMOST;
 248
 249         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 250             *exflags |= WS_EX_CONTEXTHELP;
 251     }
 252
 253     return msflags;
 254 }
 255
 256 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 257 {
 258     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 259     // parent HWND or it would be always on top of its parent which is not what
 260     // we usually want (in fact, we only want it for frames with the
 261     // wxFRAME_FLOAT_ON_PARENT flag)
 262     HWND hwndParent = NULL;
 263     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 264     {
 265         const wxWindow *parent = GetParent();
 266
 267         if ( !parent )
 268         {
 269             // this flag doesn't make sense then and will be ignored
 270             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 271         }
 272         else
 273         {
 274             hwndParent = GetHwndOf(parent);
 275         }
 276     }
 277     //else: don't float on parent, must not be owned
 278
 279     // now deal with the 2nd taskbar-related problem (see comments above in
 280     // MSWGetStyle())
 281     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 282     {
 283         // use hidden parent
 284         hwndParent = wxTLWHiddenParentModule::GetHWND();
 285     }
 286
 287     return (WXHWND)hwndParent;
 288 }
 289
 290 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 291                                        const wxString& title,
 292                                        const wxPoint& pos,
 293                                        const wxSize& size)
 294 {
 295 #ifdef __WXMICROWIN__
 296     // no dialogs support under MicroWin yet
 297     return CreateFrame(title, pos, size);
 298 #else // !__WXMICROWIN__
 299     wxWindow *parent = GetParent();
 300
 301     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 302     // app window as parent - this avoids creating modal dialogs without
 303     // parent
 304     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 305     {
 306         parent = wxTheApp->GetTopWindow();
 307
 308         if ( parent )
 309         {
 310             // don't use transient windows as parents, this is dangerous as it
 311             // can lead to a crash if the parent is destroyed before the child
 312             //
 313             // also don't use the window which is currently hidden as then the
 314             // dialog would be hidden as well
 315             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 316                     !parent->IsShown() )
 317             {
 318                 parent = NULL;
 319             }
 320         }
 321     }
 322
 323     m_hWnd = (WXHWND)::CreateDialogIndirect
 324                        (
 325                         wxGetInstance(),
 326                         (DLGTEMPLATE*)dlgTemplate,
 327                         parent ? GetHwndOf(parent) : NULL,
 328                         (DLGPROC)wxDlgProc
 329                        );
 330
 331     if ( !m_hWnd )
 332     {
 333         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 334
 335         wxLogSysError(wxT("Can't create dialog using memory template"));
 336
 337         return FALSE;
 338     }
 339
 340     WXDWORD exflags;
 341     (void)MSWGetCreateWindowFlags(&exflags);
 342
 343     if ( exflags )
 344     {
 345         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 346         ::SetWindowPos(GetHwnd(),
 347                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 348                        0, 0, 0, 0,
 349                        SWP_NOSIZE |
 350                        SWP_NOMOVE |
 351                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 352                        SWP_NOACTIVATE);
 353     }
 354
 355 #if defined(__WIN95__)
 356     // For some reason, the system menu is activated when we use the
 357     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 358     if ( exflags & WS_EX_CONTEXTHELP )
 359     {
 360         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 361         if ( winTop )
 362         {
 363             wxIcon icon = winTop->GetIcon();
 364             if ( icon.Ok() )
 365             {
 366                 ::SendMessage(GetHwnd(), WM_SETICON,
 367                               (WPARAM)TRUE,
 368                               (LPARAM)GetHiconOf(icon));
 369             }
 370         }
 371     }
 372 #endif // __WIN95__
 373
 374     // move the dialog to its initial position without forcing repainting
 375     int x, y, w, h;
 376     (void)MSWGetCreateWindowCoords(pos, size, x, y, w, h);
 377
 378     if ( x == (int)CW_USEDEFAULT )
 379     {
 380         // centre it on the screen - what else can we do?
 381         wxSize sizeDpy = wxGetDisplaySize();
 382
 383         x = (sizeDpy.x - w) / 2;
 384         y = (sizeDpy.y - h) / 2;
 385     }
 386
 387     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 388     {
 389         wxLogLastError(wxT("MoveWindow"));
 390     }
 391
 392     if ( !title.empty() )
 393     {
 394         ::SetWindowText(GetHwnd(), title);
 395     }
 396
 397     SubclassWin(m_hWnd);
 398
 399     return TRUE;
 400 #endif // __WXMICROWIN__/!__WXMICROWIN__
 401 }
 402
 403 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 404                                       const wxPoint& pos,
 405                                       const wxSize& size)
 406 {
 407     WXDWORD exflags;
 408     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 409
 410     return MSWCreate(wxCanvasClassName, title, pos, size, flags, exflags);
 411 }
 412
 413 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 414                                  wxWindowID id,
 415                                  const wxString& title,
 416                                  const wxPoint& pos,
 417                                  const wxSize& size,
 418                                  long style,
 419                                  const wxString& name)
 420 {
 421     bool ret wxDUMMY_INITIALIZE(false);
 422
 423     // init our fields
 424     Init();
 425
 426     wxSize sizeReal = size;
 427     if ( !sizeReal.IsFullySpecified() )
 428     {
 429         sizeReal.SetDefaults(GetDefaultSize());
 430     }
 431
 432     m_windowStyle = style;
 433
 434     SetName(name);
 435
 436     m_windowId = id == -1 ? NewControlId() : id;
 437
 438     wxTopLevelWindows.Append(this);
 439
 440     if ( parent )
 441         parent->AddChild(this);
 442
 443     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 444     {
 445         // we have different dialog templates to allows creation of dialogs
 446         // with & without captions under MSWindows, resizeable or not (but a
 447         // resizeable dialog always has caption - otherwise it would look too
 448         // strange)
 449
 450         // we need 3 additional WORDs for dialog menu, class and title (as we
 451         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 452         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 453         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 454         memset(dlgTemplate, 0, dlgsize);
 455
 456         // these values are arbitrary, they won't be used normally anyhow
 457         dlgTemplate->x  = 34;
 458         dlgTemplate->y  = 22;
 459         dlgTemplate->cx = 144;
 460         dlgTemplate->cy = 75;
 461
 462         // reuse the code in MSWGetStyle() but correct the results slightly for
 463         // the dialog
 464         dlgTemplate->style = MSWGetStyle(style, NULL);
 465
 466         // all dialogs are popups
 467         dlgTemplate->style |= WS_POPUP;
 468
 469         // force 3D-look if necessary, it looks impossibly ugly otherwise
 470         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 471             dlgTemplate->style |= DS_MODALFRAME;
 472
 473         ret = CreateDialog(dlgTemplate, title, pos, sizeReal);
 474         free(dlgTemplate);
 475     }
 476     else // !dialog
 477     {
 478         ret = CreateFrame(title, pos, sizeReal);
 479     }
 480
 481     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 482     {
 483         EnableCloseButton(false);
 484     }
 485
 486     // for some reason we need to manually send ourselves this message as
 487     // otherwise the mnemonics are always shown -- even if they're configured
 488     // to be hidden until "Alt" is pressed in the control panel
 489     //
 490     // this could indicate a bug somewhere else but for now this is the only
 491     // fix we have
 492     if ( ret )
 493     {
 494         SendMessage
 495         (
 496             GetHwnd(),
 497             WM_UPDATEUISTATE,
 498             MAKEWPARAM(UIS_INITIALIZE, UISF_HIDEFOCUS | UISF_HIDEACCEL),
 499             0
 500         );
 501     }
 502
 503     return ret;
 504 }
 505
 506 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 507 {
 508     if ( wxModelessWindows.Find(this) )
 509         wxModelessWindows.DeleteObject(this);
 510
 511     // after destroying an owned window, Windows activates the next top level
 512     // window in Z order but it may be different from our owner (to reproduce
 513     // this simply Alt-TAB to another application and back before closing the
 514     // owned frame) whereas we always want to yield activation to our parent
 515     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 516     {
 517         wxWindow *parent = GetParent();
 518         if ( parent )
 519         {
 520             ::BringWindowToTop(GetHwndOf(parent));
 521         }
 522     }
 523 }
 524
 525 // ----------------------------------------------------------------------------
 526 // wxTopLevelWindowMSW showing
 527 // ----------------------------------------------------------------------------
 528
 529 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 530 {
 531     ::ShowWindow(GetHwnd(), nShowCmd);
 532
 533     m_iconized = nShowCmd == SW_MINIMIZE;
 534 }
 535
 536 bool wxTopLevelWindowMSW::Show(bool show)
 537 {
 538     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 539     if ( !wxWindowBase::Show(show) )
 540         return FALSE;
 541
 542     int nShowCmd;
 543     if ( show )
 544     {
 545         if ( m_maximizeOnShow )
 546         {
 547             // show and maximize
 548             nShowCmd = SW_MAXIMIZE;
 549
 550             m_maximizeOnShow = FALSE;
 551         }
 552         else // just show
 553         {
 554            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 555                nShowCmd = SW_SHOWNA;
 556            else
 557                nShowCmd = SW_SHOW;
 558         }
 559     }
 560     else // hide
 561     {
 562         nShowCmd = SW_HIDE;
 563     }
 564
 565     DoShowWindow(nShowCmd);
 566
 567     if ( show )
 568     {
 569         ::BringWindowToTop(GetHwnd());
 570
 571         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
 572         event.SetEventObject( this );
 573         GetEventHandler()->ProcessEvent(event);
 574     }
 575     else // hide
 576     {
 577         // Try to highlight the correct window (the parent)
 578         if ( GetParent() )
 579         {
 580             HWND hWndParent = GetHwndOf(GetParent());
 581             if (hWndParent)
 582                 ::BringWindowToTop(hWndParent);
 583         }
 584     }
 585
 586     return TRUE;
 587 }
 588
 589 // ----------------------------------------------------------------------------
 590 // wxTopLevelWindowMSW maximize/minimize
 591 // ----------------------------------------------------------------------------
 592
 593 void wxTopLevelWindowMSW::Maximize(bool maximize)
 594 {
 595     if ( IsShown() )
 596     {
 597         // just maximize it directly
 598         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 599     }
 600     else // hidden
 601     {
 602         // we can't maximize the hidden frame because it shows it as well, so
 603         // just remember that we should do it later in this case
 604         m_maximizeOnShow = maximize;
 605     }
 606 }
 607
 608 bool wxTopLevelWindowMSW::IsMaximized() const
 609 {
 610 #ifdef __WXWINCE__
 611     return FALSE;
 612 #else
 613     return ::IsZoomed(GetHwnd()) != 0;
 614 #endif
 615 }
 616
 617 void wxTopLevelWindowMSW::Iconize(bool iconize)
 618 {
 619     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 620 }
 621
 622 bool wxTopLevelWindowMSW::IsIconized() const
 623 {
 624 #ifdef __WXWINCE__
 625     return FALSE;
 626 #else
 627     // also update the current state
 628     ((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
 629
 630     return m_iconized;
 631 #endif
 632 }
 633
 634 void wxTopLevelWindowMSW::Restore()
 635 {
 636     DoShowWindow(SW_RESTORE);
 637 }
 638
 639 // ----------------------------------------------------------------------------
 640 // wxTopLevelWindowMSW fullscreen
 641 // ----------------------------------------------------------------------------
 642
 643 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 644 {
 645     if ( show == IsFullScreen() )
 646     {
 647         // nothing to do
 648         return TRUE;
 649     }
 650
 651     m_fsIsShowing = show;
 652
 653     if ( show )
 654     {
 655         m_fsStyle = style;
 656
 657         // zap the frame borders
 658
 659         // save the 'normal' window style
 660         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 661
 662         // save the old position, width & height, maximize state
 663         m_fsOldSize = GetRect();
 664         m_fsIsMaximized = IsMaximized();
 665
 666         // decide which window style flags to turn off
 667         LONG newStyle = m_fsOldWindowStyle;
 668         LONG offFlags = 0;
 669
 670         if (style & wxFULLSCREEN_NOBORDER)
 671         {
 672             offFlags |= WS_BORDER;
 673 #ifndef __WXWINCE__
 674             offFlags |= WS_THICKFRAME;
 675 #endif
 676         }
 677         if (style & wxFULLSCREEN_NOCAPTION)
 678             offFlags |= WS_CAPTION | WS_SYSMENU;
 679
 680         newStyle &= ~offFlags;
 681
 682         // change our window style to be compatible with full-screen mode
 683         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 684
 685         wxRect rect;
 686 #if wxUSE_DISPLAY
 687         // resize to the size of the display containing us
 688         int dpy = wxDisplay::GetFromWindow(this);
 689         if ( dpy != wxNOT_FOUND )
 690         {
 691             rect = wxDisplay(dpy).GetGeometry();
 692         }
 693         else // fall back to the main desktop
 694 #else // wxUSE_DISPLAY
 695         {
 696             // resize to the size of the desktop
 697             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 698 #ifdef __WXWINCE__
 699             // FIXME: size of the bottom menu (toolbar)
 700             // should be taken in account
 701             rect.height += rect.y;
 702             rect.y       = 0;
 703 #endif
 704         }
 705 #endif // wxUSE_DISPLAY
 706
 707         SetSize(rect);
 708
 709         // now flush the window style cache and actually go full-screen
 710         long flags = SWP_FRAMECHANGED;
 711
 712         // showing the frame full screen should also show it if it's still
 713         // hidden
 714         if ( !IsShown() )
 715         {
 716             // don't call wxWindow version to avoid flicker from calling
 717             // ::ShowWindow() -- we're going to show the window at the correct
 718             // location directly below -- but do call the wxWindowBase version
 719             // to sync the internal m_isShown flag
 720             wxWindowBase::Show();
 721
 722             flags |= SWP_SHOWWINDOW;
 723         }
 724
 725         SetWindowPos(GetHwnd(), HWND_TOP,
 726                      rect.x, rect.y, rect.width, rect.height,
 727                      flags);
 728
 729 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 730         ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
 731 #endif
 732
 733         // finally send an event allowing the window to relayout itself &c
 734         wxSizeEvent event(rect.GetSize(), GetId());
 735         GetEventHandler()->ProcessEvent(event);
 736     }
 737     else // stop showing full screen
 738     {
 739 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 740         ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
 741 #endif
 742         Maximize(m_fsIsMaximized);
 743         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 744         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 745             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 746     }
 747
 748     return TRUE;
 749 }
 750
 751 // ----------------------------------------------------------------------------
 752 // wxTopLevelWindowMSW misc
 753 // ----------------------------------------------------------------------------
 754
 755 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 756 {
 757     SetIcons( wxIconBundle( icon ) );
 758 }
 759
 760 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 761 {
 762     wxTopLevelWindowBase::SetIcons(icons);
 763
 764 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 765     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 766     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 767     {
 768         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 769                        (LPARAM)GetHiconOf(sml) );
 770     }
 771
 772     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 773     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 774     {
 775         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 776                        (LPARAM)GetHiconOf(big) );
 777     }
 778 #endif // __WIN95__
 779 }
 780
 781 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 782 {
 783 #if !defined(__WXMICROWIN__)
 784     // get system (a.k.a. window) menu
 785     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 786     if ( !hmenu )
 787     {
 788         // no system menu at all -- ok if we want to remove the close button
 789         // anyhow, but bad if we want to show it
 790         return !enable;
 791     }
 792
 793     // enabling/disabling the close item from it also automatically
 794     // disables/enables the close title bar button
 795     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 796                           MF_BYCOMMAND |
 797                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 798     {
 799         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 800
 801         return FALSE;
 802     }
 803
 804     // update appearance immediately
 805     if ( !::DrawMenuBar(GetHwnd()) )
 806     {
 807         wxLogLastError(_T("DrawMenuBar"));
 808     }
 809 #endif // !__WXMICROWIN__
 810
 811     return TRUE;
 812 }
 813
 814 #ifndef __WXWINCE__
 815
 816 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 817 {
 818     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), FALSE,
 819                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 820
 821     // The empty region signifies that the shape should be removed from the
 822     // window.
 823     if ( region.IsEmpty() )
 824     {
 825         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 826         {
 827             wxLogLastError(_T("SetWindowRgn"));
 828             return FALSE;
 829         }
 830         return TRUE;
 831     }
 832
 833     // Windows takes ownership of the region, so
 834     // we'll have to make a copy of the region to give to it.
 835     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 836     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 837     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 838     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 839     delete[] (char*) rgnData;
 840
 841     // SetWindowRgn expects the region to be in coordinants
 842     // relative to the window, not the client area.  Figure
 843     // out the offset, if any.
 844     RECT rect;
 845     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 846     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 847     ::GetClientRect(GetHwnd(), &rect);
 848     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
 849     ::OffsetRgn(hrgn, -rect.left, -rect.top);
 850
 851     // Now call the shape API with the new region.
 852     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
 853     {
 854         wxLogLastError(_T("SetWindowRgn"));
 855         return FALSE;
 856     }
 857     return TRUE;
 858 }
 859
 860 #endif // !__WXWINCE__
 861
 862 // ----------------------------------------------------------------------------
 863 // wxTopLevelWindow event handling
 864 // ----------------------------------------------------------------------------
 865
 866 // Default activation behaviour - set the focus for the first child
 867 // subwindow found.
 868 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 869 {
 870     if ( event.GetActive() )
 871     {
 872         // restore focus to the child which was last focused unless we already
 873         // have it
 874         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
 875
 876         wxWindow *winFocus = FindFocus();
 877         if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
 878         {
 879             wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 880                                                 : NULL;
 881             if ( !parent )
 882             {
 883                 parent = this;
 884             }
 885
 886             wxSetFocusToChild(parent, &m_winLastFocused);
 887         }
 888     }
 889     else // deactivating
 890     {
 891         // remember the last focused child if it is our child
 892         m_winLastFocused = FindFocus();
 893
 894         if ( m_winLastFocused )
 895         {
 896             // let it know that it doesn't have focus any more
 897             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
 898
 899             // and don't remember it if it's a child from some other frame
 900             if ( wxGetTopLevelParent(m_winLastFocused) != this )
 901             {
 902                 m_winLastFocused = NULL;
 903             }
 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