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     // Data to save/restore when calling ShowFullScreen
 143     m_fsStyle = 0;
 144     m_fsOldWindowStyle = 0;
 145     m_fsIsMaximized = FALSE;
 146     m_fsIsShowing = FALSE;
 147
 148     m_winLastFocused = (wxWindow *)NULL;
 149 }
 150
 151 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 152 {
 153     // let the base class deal with the common styles but fix the ones which
 154     // don't make sense for us (we also deal with the borders ourselves)
 155     WXDWORD msflags = wxWindow::MSWGetStyle
 156                       (
 157                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 158                       ) & ~WS_CHILD & ~WS_VISIBLE;
 159
 160     // first select the kind of window being created
 161     //
 162     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 163     // creates a window with both caption and border, hence we also test it
 164     // below in some other cases
 165     if ( style & wxFRAME_TOOL_WINDOW )
 166         msflags |= WS_POPUP;
 167     else
 168     {
 169 #ifdef __WXWINCE__
 170         if (msflags & WS_BORDER)
 171 #endif
 172             msflags |= WS_OVERLAPPED;
 173     }
 174
 175     // border and caption styles
 176     if ( style & wxRESIZE_BORDER )
 177     {
 178 #ifndef __WXWINCE__
 179         msflags |= WS_THICKFRAME;
 180 #endif
 181     }
 182     else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
 183         *exflags |= WS_EX_DLGMODALFRAME;
 184     else if ( !(style & wxBORDER_NONE) )
 185         msflags |= WS_BORDER;
 186 #ifndef __WXWINCE__
 187     else
 188         msflags |= WS_POPUP;
 189 #endif
 190
 191     if ( style & wxCAPTION )
 192         msflags |= WS_CAPTION;
 193 #ifndef __WXWINCE__
 194     else
 195         msflags |= WS_POPUP;
 196 #endif
 197
 198     // next translate the individual flags
 199     if ( style & wxMINIMIZE_BOX )
 200         msflags |= WS_MINIMIZEBOX;
 201     if ( style & wxMAXIMIZE_BOX )
 202         msflags |= WS_MAXIMIZEBOX;
 203     if ( style & wxSYSTEM_MENU )
 204         msflags |= WS_SYSMENU;
 205 #ifndef __WXWINCE__
 206     if ( style & wxMINIMIZE )
 207         msflags |= WS_MINIMIZE;
 208     if ( style & wxMAXIMIZE )
 209         msflags |= WS_MAXIMIZE;
 210 #endif
 211
 212     // Keep this here because it saves recoding this function in wxTinyFrame
 213 #if wxUSE_ITSY_BITSY && !defined(__WIN32__)
 214     if ( style & wxTINY_CAPTION_VERT )
 215         msflags |= IBS_VERTCAPTION;
 216     if ( style & wxTINY_CAPTION_HORIZ )
 217         msflags |= IBS_HORZCAPTION;
 218 #else
 219     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 220         msflags |= WS_CAPTION;
 221 #endif
 222
 223     if ( exflags )
 224     {
 225         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 226         {
 227             if ( style & wxFRAME_TOOL_WINDOW )
 228             {
 229                 // create the palette-like window
 230                 *exflags |= WS_EX_TOOLWINDOW;
 231
 232                 // tool windows shouldn't appear on the taskbar (as documented)
 233                 style |= wxFRAME_NO_TASKBAR;
 234             }
 235
 236             // We have to solve 2 different problems here:
 237             //
 238             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 239             //    taskbar even if they don't have a parent
 240             //
 241             // 2. frames without this style should appear in the taskbar even
 242             //    if they're owned (Windows only puts non owned windows into
 243             //    the taskbar normally)
 244             //
 245             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 246             // first one is dealt with in our MSWGetParent() method
 247             // implementation
 248 #ifndef __WXWINCE__
 249             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 250             {
 251                 // need to force the frame to appear in the taskbar
 252                 *exflags |= WS_EX_APPWINDOW;
 253             }
 254 #endif
 255             //else: nothing to do [here]
 256         }
 257
 258         if ( style & wxSTAY_ON_TOP )
 259             *exflags |= WS_EX_TOPMOST;
 260
 261 #ifdef __WIN32__
 262         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 263             *exflags |= WS_EX_CONTEXTHELP;
 264 #endif // __WIN32__
 265     }
 266
 267     return msflags;
 268 }
 269
 270 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 271 {
 272     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 273     // parent HWND or it would be always on top of its parent which is not what
 274     // we usually want (in fact, we only want it for frames with the
 275     // wxFRAME_FLOAT_ON_PARENT flag)
 276     HWND hwndParent = NULL;
 277     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 278     {
 279         const wxWindow *parent = GetParent();
 280
 281         if ( !parent )
 282         {
 283             // this flag doesn't make sense then and will be ignored
 284             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 285         }
 286         else
 287         {
 288             hwndParent = GetHwndOf(parent);
 289         }
 290     }
 291     //else: don't float on parent, must not be owned
 292
 293     // now deal with the 2nd taskbar-related problem (see comments above in
 294     // MSWGetStyle())
 295     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 296     {
 297         // use hidden parent
 298         hwndParent = wxTLWHiddenParentModule::GetHWND();
 299     }
 300
 301     return (WXHWND)hwndParent;
 302 }
 303
 304 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 305                                        const wxString& title,
 306                                        const wxPoint& pos,
 307                                        const wxSize& size)
 308 {
 309 #ifdef __WXMICROWIN__
 310     // no dialogs support under MicroWin yet
 311     return CreateFrame(title, pos, size);
 312 #else // !__WXMICROWIN__
 313     wxWindow *parent = GetParent();
 314
 315     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 316     // app window as parent - this avoids creating modal dialogs without
 317     // parent
 318     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 319     {
 320         parent = wxTheApp->GetTopWindow();
 321
 322         if ( parent )
 323         {
 324             // don't use transient windows as parents, this is dangerous as it
 325             // can lead to a crash if the parent is destroyed before the child
 326             //
 327             // also don't use the window which is currently hidden as then the
 328             // dialog would be hidden as well
 329             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 330                     !parent->IsShown() )
 331             {
 332                 parent = NULL;
 333             }
 334         }
 335     }
 336
 337     m_hWnd = (WXHWND)::CreateDialogIndirect
 338                        (
 339                         wxGetInstance(),
 340                         (DLGTEMPLATE*)dlgTemplate,
 341                         parent ? GetHwndOf(parent) : NULL,
 342                         (DLGPROC)wxDlgProc
 343                        );
 344
 345     if ( !m_hWnd )
 346     {
 347         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 348
 349         wxLogSysError(wxT("Can't create dialog using memory template"));
 350
 351         return FALSE;
 352     }
 353
 354     WXDWORD exflags;
 355     (void)MSWGetCreateWindowFlags(&exflags);
 356
 357     if ( exflags )
 358     {
 359         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 360         ::SetWindowPos(GetHwnd(),
 361                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 362                        0, 0, 0, 0,
 363                        SWP_NOSIZE |
 364                        SWP_NOMOVE |
 365                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 366                        SWP_NOACTIVATE);
 367     }
 368
 369 #if defined(__WIN95__)
 370     // For some reason, the system menu is activated when we use the
 371     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 372     if ( exflags & WS_EX_CONTEXTHELP )
 373     {
 374         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 375         if ( winTop )
 376         {
 377             wxIcon icon = winTop->GetIcon();
 378             if ( icon.Ok() )
 379             {
 380                 ::SendMessage(GetHwnd(), WM_SETICON,
 381                               (WPARAM)TRUE,
 382                               (LPARAM)GetHiconOf(icon));
 383             }
 384         }
 385     }
 386 #endif // __WIN95__
 387
 388     // move the dialog to its initial position without forcing repainting
 389     int x, y, w, h;
 390     (void)MSWGetCreateWindowCoords(pos, size, x, y, w, h);
 391
 392     if ( x == (int)CW_USEDEFAULT )
 393     {
 394         // centre it on the screen - what else can we do?
 395         wxSize sizeDpy = wxGetDisplaySize();
 396
 397         x = (sizeDpy.x - w) / 2;
 398         y = (sizeDpy.y - h) / 2;
 399     }
 400
 401     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 402     {
 403         wxLogLastError(wxT("MoveWindow"));
 404     }
 405
 406     if ( !title.empty() )
 407     {
 408         ::SetWindowText(GetHwnd(), title);
 409     }
 410
 411     SubclassWin(m_hWnd);
 412
 413     return TRUE;
 414 #endif // __WXMICROWIN__/!__WXMICROWIN__
 415 }
 416
 417 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 418                                       const wxPoint& pos,
 419                                       const wxSize& size)
 420 {
 421     WXDWORD exflags;
 422     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 423
 424     return MSWCreate(wxCanvasClassName, title, pos, size, flags, exflags);
 425 }
 426
 427 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 428                                  wxWindowID id,
 429                                  const wxString& title,
 430                                  const wxPoint& pos,
 431                                  const wxSize& size,
 432                                  long style,
 433                                  const wxString& name)
 434 {
 435     bool ret wxDUMMY_INITIALIZE(false);
 436     int w, h;
 437
 438     // init our fields
 439     Init();
 440     w = WidthDefault(size.x);
 441     h = HeightDefault(size.y);
 442
 443     m_windowStyle = style;
 444
 445     SetName(name);
 446
 447     m_windowId = id == -1 ? NewControlId() : id;
 448
 449     wxTopLevelWindows.Append(this);
 450
 451     if ( parent )
 452         parent->AddChild(this);
 453
 454     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 455     {
 456         // we have different dialog templates to allows creation of dialogs
 457         // with & without captions under MSWindows, resizeable or not (but a
 458         // resizeable dialog always has caption - otherwise it would look too
 459         // strange)
 460
 461         // we need 3 additional WORDs for dialog menu, class and title (as we
 462         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 463         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 464         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 465         memset(dlgTemplate, 0, dlgsize);
 466
 467         // these values are arbitrary, they won't be used normally anyhow
 468         dlgTemplate->x  = 34;
 469         dlgTemplate->y  = 22;
 470         dlgTemplate->cx = 144;
 471         dlgTemplate->cy = 75;
 472
 473         // reuse the code in MSWGetStyle() but correct the results slightly for
 474         // the dialog
 475         dlgTemplate->style = MSWGetStyle(style, NULL);
 476
 477         // all dialogs are popups
 478         dlgTemplate->style |= WS_POPUP;
 479
 480         // force 3D-look if necessary, it looks impossibly ugly otherwise
 481         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 482             dlgTemplate->style |= DS_MODALFRAME;
 483
 484         ret = CreateDialog(dlgTemplate, title, pos, wxSize(w,h));
 485         free(dlgTemplate);
 486     }
 487     else // !dialog
 488     {
 489         ret = CreateFrame(title, pos, wxSize(w,h));
 490     }
 491
 492     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 493     {
 494         EnableCloseButton(false);
 495     }
 496
 497     // for some reason we need to manually send ourselves this message as
 498     // otherwise the mnemonics are always shown -- even if they're configured
 499     // to be hidden until "Alt" is pressed in the control panel
 500     //
 501     // this could indicate a bug somewhere else but for now this is the only
 502     // fix we have
 503     if ( ret )
 504     {
 505         SendMessage
 506         (
 507             GetHwnd(),
 508             WM_UPDATEUISTATE,
 509             MAKEWPARAM(UIS_INITIALIZE, UISF_HIDEFOCUS | UISF_HIDEACCEL),
 510             0
 511         );
 512     }
 513
 514     return ret;
 515 }
 516
 517 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 518 {
 519     if ( wxModelessWindows.Find(this) )
 520         wxModelessWindows.DeleteObject(this);
 521
 522     // after destroying an owned window, Windows activates the next top level
 523     // window in Z order but it may be different from our owner (to reproduce
 524     // this simply Alt-TAB to another application and back before closing the
 525     // owned frame) whereas we always want to yield activation to our parent
 526     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 527     {
 528         wxWindow *parent = GetParent();
 529         if ( parent )
 530         {
 531             ::BringWindowToTop(GetHwndOf(parent));
 532         }
 533     }
 534 }
 535
 536 // ----------------------------------------------------------------------------
 537 // wxTopLevelWindowMSW showing
 538 // ----------------------------------------------------------------------------
 539
 540 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 541 {
 542     ::ShowWindow(GetHwnd(), nShowCmd);
 543
 544     m_iconized = nShowCmd == SW_MINIMIZE;
 545 }
 546
 547 bool wxTopLevelWindowMSW::Show(bool show)
 548 {
 549     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 550     if ( !wxWindowBase::Show(show) )
 551         return FALSE;
 552
 553     int nShowCmd;
 554     if ( show )
 555     {
 556         if ( m_maximizeOnShow )
 557         {
 558             // show and maximize
 559             nShowCmd = SW_MAXIMIZE;
 560
 561             m_maximizeOnShow = FALSE;
 562         }
 563         else // just show
 564         {
 565            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 566                nShowCmd = SW_SHOWNA;
 567            else
 568                nShowCmd = SW_SHOW;
 569         }
 570     }
 571     else // hide
 572     {
 573         nShowCmd = SW_HIDE;
 574     }
 575
 576     DoShowWindow(nShowCmd);
 577
 578     if ( show )
 579     {
 580         ::BringWindowToTop(GetHwnd());
 581
 582         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
 583         event.SetEventObject( this );
 584         GetEventHandler()->ProcessEvent(event);
 585     }
 586     else // hide
 587     {
 588         // Try to highlight the correct window (the parent)
 589         if ( GetParent() )
 590         {
 591             HWND hWndParent = GetHwndOf(GetParent());
 592             if (hWndParent)
 593                 ::BringWindowToTop(hWndParent);
 594         }
 595     }
 596
 597     return TRUE;
 598 }
 599
 600 // ----------------------------------------------------------------------------
 601 // wxTopLevelWindowMSW maximize/minimize
 602 // ----------------------------------------------------------------------------
 603
 604 void wxTopLevelWindowMSW::Maximize(bool maximize)
 605 {
 606     if ( IsShown() )
 607     {
 608         // just maximize it directly
 609         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 610     }
 611     else // hidden
 612     {
 613         // we can't maximize the hidden frame because it shows it as well, so
 614         // just remember that we should do it later in this case
 615         m_maximizeOnShow = maximize;
 616     }
 617 }
 618
 619 bool wxTopLevelWindowMSW::IsMaximized() const
 620 {
 621 #ifdef __WXWINCE__
 622     return FALSE;
 623 #else
 624     return ::IsZoomed(GetHwnd()) != 0;
 625 #endif
 626 }
 627
 628 void wxTopLevelWindowMSW::Iconize(bool iconize)
 629 {
 630     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 631 }
 632
 633 bool wxTopLevelWindowMSW::IsIconized() const
 634 {
 635 #ifdef __WXWINCE__
 636     return FALSE;
 637 #else
 638     // also update the current state
 639     ((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
 640
 641     return m_iconized;
 642 #endif
 643 }
 644
 645 void wxTopLevelWindowMSW::Restore()
 646 {
 647     DoShowWindow(SW_RESTORE);
 648 }
 649
 650 // ----------------------------------------------------------------------------
 651 // wxTopLevelWindowMSW fullscreen
 652 // ----------------------------------------------------------------------------
 653
 654 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 655 {
 656     if ( show == IsFullScreen() )
 657     {
 658         // nothing to do
 659         return TRUE;
 660     }
 661
 662     m_fsIsShowing = show;
 663
 664     if ( show )
 665     {
 666         m_fsStyle = style;
 667
 668         // zap the frame borders
 669
 670         // save the 'normal' window style
 671         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 672
 673         // save the old position, width & height, maximize state
 674         m_fsOldSize = GetRect();
 675         m_fsIsMaximized = IsMaximized();
 676
 677         // decide which window style flags to turn off
 678         LONG newStyle = m_fsOldWindowStyle;
 679         LONG offFlags = 0;
 680
 681         if (style & wxFULLSCREEN_NOBORDER)
 682         {
 683             offFlags |= WS_BORDER;
 684 #ifndef __WXWINCE__
 685             offFlags |= WS_THICKFRAME;
 686 #endif
 687         }
 688         if (style & wxFULLSCREEN_NOCAPTION)
 689             offFlags |= WS_CAPTION | WS_SYSMENU;
 690
 691         newStyle &= ~offFlags;
 692
 693         // change our window style to be compatible with full-screen mode
 694         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 695
 696         wxRect rect;
 697 #if wxUSE_DISPLAY
 698         // resize to the size of the display containing us
 699         int dpy = wxDisplay::GetFromWindow(this);
 700         if ( dpy != wxNOT_FOUND )
 701         {
 702             rect = wxDisplay(dpy).GetGeometry();
 703         }
 704         else // fall back to the main desktop
 705 #else // wxUSE_DISPLAY
 706         {
 707             // resize to the size of the desktop
 708             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 709 #ifdef __WXWINCE__
 710             // FIXME: size of the bottom menu (toolbar)
 711             // should be taken in account
 712             rect.height += rect.y;
 713             rect.y       = 0;
 714 #endif
 715         }
 716 #endif // wxUSE_DISPLAY
 717
 718         SetSize(rect);
 719
 720         // now flush the window style cache and actually go full-screen
 721         long flags = SWP_FRAMECHANGED;
 722
 723         // showing the frame full screen should also show it if it's still
 724         // hidden
 725         if ( !IsShown() )
 726         {
 727             // don't call wxWindow version to avoid flicker from calling
 728             // ::ShowWindow() -- we're going to show the window at the correct
 729             // location directly below -- but do call the wxWindowBase version
 730             // to sync the internal m_isShown flag
 731             wxWindowBase::Show();
 732
 733             flags |= SWP_SHOWWINDOW;
 734         }
 735
 736         SetWindowPos(GetHwnd(), HWND_TOP,
 737                      rect.x, rect.y, rect.width, rect.height,
 738                      flags);
 739
 740 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 741         ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
 742 #endif
 743
 744         // finally send an event allowing the window to relayout itself &c
 745         wxSizeEvent event(rect.GetSize(), GetId());
 746         GetEventHandler()->ProcessEvent(event);
 747     }
 748     else // stop showing full screen
 749     {
 750 #if defined(__WXWINCE__) && _WIN32_WCE < 400
 751         ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
 752 #endif
 753         Maximize(m_fsIsMaximized);
 754         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 755         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 756             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 757     }
 758
 759     return TRUE;
 760 }
 761
 762 // ----------------------------------------------------------------------------
 763 // wxTopLevelWindowMSW misc
 764 // ----------------------------------------------------------------------------
 765
 766 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 767 {
 768     SetIcons( wxIconBundle( icon ) );
 769 }
 770
 771 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 772 {
 773     wxTopLevelWindowBase::SetIcons(icons);
 774
 775 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 776     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 777     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 778     {
 779         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 780                        (LPARAM)GetHiconOf(sml) );
 781     }
 782
 783     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 784     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 785     {
 786         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 787                        (LPARAM)GetHiconOf(big) );
 788     }
 789 #endif // __WIN95__
 790 }
 791
 792 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 793 {
 794 #if !defined(__WXMICROWIN__)
 795     // get system (a.k.a. window) menu
 796     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 797     if ( !hmenu )
 798     {
 799         // no system menu at all -- ok if we want to remove the close button
 800         // anyhow, but bad if we want to show it
 801         return !enable;
 802     }
 803
 804     // enabling/disabling the close item from it also automatically
 805     // disables/enables the close title bar button
 806     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 807                           MF_BYCOMMAND |
 808                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 809     {
 810         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 811
 812         return FALSE;
 813     }
 814
 815     // update appearance immediately
 816     if ( !::DrawMenuBar(GetHwnd()) )
 817     {
 818         wxLogLastError(_T("DrawMenuBar"));
 819     }
 820 #endif // !__WXMICROWIN__
 821
 822     return TRUE;
 823 }
 824
 825 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 826 {
 827 #ifdef __WXWINCE__
 828     return FALSE;
 829 #else
 830     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), FALSE,
 831                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 832
 833     // The empty region signifies that the shape should be removed from the
 834     // window.
 835     if ( region.IsEmpty() )
 836     {
 837         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 838         {
 839             wxLogLastError(_T("SetWindowRgn"));
 840             return FALSE;
 841         }
 842         return TRUE;
 843     }
 844
 845     // Windows takes ownership of the region, so
 846     // we'll have to make a copy of the region to give to it.
 847     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 848     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 849     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 850     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 851     delete[] (char*) rgnData;
 852
 853     // SetWindowRgn expects the region to be in coordinants
 854     // relative to the window, not the client area.  Figure
 855     // out the offset, if any.
 856     RECT rect;
 857     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 858     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 859     ::GetClientRect(GetHwnd(), &rect);
 860     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
 861     ::OffsetRgn(hrgn, -rect.left, -rect.top);
 862
 863     // Now call the shape API with the new region.
 864     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
 865     {
 866         wxLogLastError(_T("SetWindowRgn"));
 867         return FALSE;
 868     }
 869     return TRUE;
 870 #endif
 871 }
 872
 873 // ----------------------------------------------------------------------------
 874 // wxTopLevelWindow event handling
 875 // ----------------------------------------------------------------------------
 876
 877 // Default activation behaviour - set the focus for the first child
 878 // subwindow found.
 879 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 880 {
 881     if ( event.GetActive() )
 882     {
 883         // restore focus to the child which was last focused unless we already
 884         // have it
 885         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
 886
 887         wxWindow *winFocus = FindFocus();
 888         if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
 889         {
 890             wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 891                                                 : NULL;
 892             if ( !parent )
 893             {
 894                 parent = this;
 895             }
 896
 897             wxSetFocusToChild(parent, &m_winLastFocused);
 898         }
 899     }
 900     else // deactivating
 901     {
 902         // remember the last focused child if it is our child
 903         m_winLastFocused = FindFocus();
 904
 905         if ( m_winLastFocused )
 906         {
 907             // let it know that it doesn't have focus any more
 908             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
 909
 910             // and don't remember it if it's a child from some other frame
 911             if ( wxGetTopLevelParent(m_winLastFocused) != this )
 912             {
 913                 m_winLastFocused = NULL;
 914             }
 915         }
 916
 917         wxLogTrace(_T("focus"),
 918                    _T("wxTLW %08x deactivated, last focused: %08x."),
 919                    (int) m_hWnd,
 920                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
 921                                            : NULL));
 922
 923         event.Skip();
 924     }
 925 }
 926
 927 // the DialogProc for all wxWindows dialogs
 928 LONG APIENTRY _EXPORT
 929 wxDlgProc(HWND WXUNUSED(hDlg),
 930           UINT message,
 931           WPARAM WXUNUSED(wParam),
 932           LPARAM WXUNUSED(lParam))
 933 {
 934     switch ( message )
 935     {
 936         case WM_INITDIALOG:
 937             // for this message, returning TRUE tells system to set focus to
 938             // the first control in the dialog box, but as we set the focus
 939             // ourselves, we return FALSE from here as well, so fall through
 940
 941         default:
 942             // for all the other ones, FALSE means that we didn't process the
 943             // message
 944             return FALSE;
 945     }
 946 }
 947
 948 // ============================================================================
 949 // wxTLWHiddenParentModule implementation
 950 // ============================================================================
 951
 952 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
 953
 954 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
 955
 956 bool wxTLWHiddenParentModule::OnInit()
 957 {
 958     ms_hwnd = NULL;
 959     ms_className = NULL;
 960
 961     return TRUE;
 962 }
 963
 964 void wxTLWHiddenParentModule::OnExit()
 965 {
 966     if ( ms_hwnd )
 967     {
 968         if ( !::DestroyWindow(ms_hwnd) )
 969         {
 970             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
 971         }
 972
 973         ms_hwnd = NULL;
 974     }
 975
 976     if ( ms_className )
 977     {
 978         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
 979         {
 980             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
 981         }
 982
 983         ms_className = NULL;
 984     }
 985 }
 986
 987 /* static */
 988 HWND wxTLWHiddenParentModule::GetHWND()
 989 {
 990     if ( !ms_hwnd )
 991     {
 992         if ( !ms_className )
 993         {
 994             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
 995
 996             WNDCLASS wndclass;
 997             wxZeroMemory(wndclass);
 998
 999             wndclass.lpfnWndProc   = DefWindowProc;
1000             wndclass.hInstance     = wxGetInstance();
1001             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
1002
1003             if ( !::RegisterClass(&wndclass) )
1004             {
1005                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1006             }
1007             else
1008             {
1009                 ms_className = HIDDEN_PARENT_CLASS;
1010             }
1011         }
1012
1013         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1014                                  (HMENU)NULL, wxGetInstance(), NULL);
1015         if ( !ms_hwnd )
1016         {
1017             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1018         }
1019     }
1020
1021     return ms_hwnd;
1022 }
1023
1024