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 #ifdef __GNUG__
  21     #pragma implementation "toplevel.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/app.h"
  33     #include "wx/toplevel.h"
  34     #include "wx/string.h"
  35     #include "wx/log.h"
  36     #include "wx/intl.h"
  37     #include "wx/frame.h"
  38     #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 #ifdef CreateDialog
  47 #undef CreateDialog
  48 #endif
  49
  50 #include "wx/display.h"
  51
  52 #ifndef ICON_BIG
  53     #define ICON_BIG 1
  54 #endif
  55
  56 #ifndef ICON_SMALL
  57     #define ICON_SMALL 0
  58 #endif
  59
  60 // ----------------------------------------------------------------------------
  61 // stubs for missing functions under MicroWindows
  62 // ----------------------------------------------------------------------------
  63
  64 #ifdef __WXMICROWIN__
  65
  66 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return FALSE; }
  67 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return FALSE; }
  68
  69 #endif // __WXMICROWIN__
  70
  71 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
  72 //     is not included by wxUniv build which does need wxDlgProc
  73 LONG APIENTRY _EXPORT
  74 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  75
  76 // ----------------------------------------------------------------------------
  77 // globals
  78 // ----------------------------------------------------------------------------
  79
  80 // list of all frames and modeless dialogs
  81 wxWindowList wxModelessWindows;
  82
  83 // the name of the default wxWindows class
  84 extern const wxChar *wxCanvasClassName;
  85
  86 // ----------------------------------------------------------------------------
  87 // wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
  88 // module to ensure that the window is always deleted)
  89 // ----------------------------------------------------------------------------
  90
  91 class wxTLWHiddenParentModule : public wxModule
  92 {
  93 public:
  94     // module init/finalize
  95     virtual bool OnInit();
  96     virtual void OnExit();
  97
  98     // get the hidden window (creates on demand)
  99     static HWND GetHWND();
 100
 101 private:
 102     // the HWND of the hidden parent
 103     static HWND ms_hwnd;
 104
 105     // the class used to create it
 106     static const wxChar *ms_className;
 107
 108     DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
 109 };
 110
 111 IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
 112
 113 // ============================================================================
 114 // wxTopLevelWindowMSW implementation
 115 // ============================================================================
 116
 117 BEGIN_EVENT_TABLE(wxTopLevelWindowMSW, wxTopLevelWindowBase)
 118     EVT_ACTIVATE(wxTopLevelWindowMSW::OnActivate)
 119 END_EVENT_TABLE()
 120
 121 // ----------------------------------------------------------------------------
 122 // wxTopLevelWindowMSW creation
 123 // ----------------------------------------------------------------------------
 124
 125 void wxTopLevelWindowMSW::Init()
 126 {
 127     m_iconized =
 128     m_maximizeOnShow = FALSE;
 129
 130     // unlike (almost?) all other windows, frames are created hidden
 131     m_isShown = FALSE;
 132
 133     // Data to save/restore when calling ShowFullScreen
 134     m_fsStyle = 0;
 135     m_fsOldWindowStyle = 0;
 136     m_fsIsMaximized = FALSE;
 137     m_fsIsShowing = FALSE;
 138
 139     m_winLastFocused = (wxWindow *)NULL;
 140 }
 141
 142 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 143 {
 144     // let the base class deal with the common styles but fix the ones which
 145     // don't make sense for us (we also deal with the borders ourselves)
 146     WXDWORD msflags = wxWindow::MSWGetStyle
 147                       (
 148                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 149                       ) & ~WS_CHILD & ~WS_VISIBLE;
 150
 151     // first select the kind of window being created
 152     //
 153     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 154     // creates a window with both caption and border, hence we also test it
 155     // below in some other cases
 156     if ( style & wxFRAME_TOOL_WINDOW )
 157         msflags |= WS_POPUP;
 158     else
 159         msflags |= WS_OVERLAPPED;
 160
 161     // border and caption styles
 162     if ( style & wxRESIZE_BORDER )
 163     {
 164 #ifndef __WXWINCE__
 165         msflags |= WS_THICKFRAME;
 166 #endif
 167     }
 168     else if ( !(style & wxBORDER_NONE) )
 169         msflags |= WS_BORDER;
 170     else
 171         msflags |= WS_POPUP;
 172
 173     if ( style & wxCAPTION )
 174         msflags |= WS_CAPTION;
 175     else
 176         msflags |= WS_POPUP;
 177
 178     // next translate the individual flags
 179     if ( style & wxMINIMIZE_BOX )
 180         msflags |= WS_MINIMIZEBOX;
 181     if ( style & wxMAXIMIZE_BOX )
 182         msflags |= WS_MAXIMIZEBOX;
 183     if ( style & wxSYSTEM_MENU )
 184         msflags |= WS_SYSMENU;
 185 #ifndef __WXWINCE__
 186     if ( style & wxMINIMIZE )
 187         msflags |= WS_MINIMIZE;
 188     if ( style & wxMAXIMIZE )
 189         msflags |= WS_MAXIMIZE;
 190 #endif
 191
 192     // Keep this here because it saves recoding this function in wxTinyFrame
 193 #if wxUSE_ITSY_BITSY && !defined(__WIN32__)
 194     if ( style & wxTINY_CAPTION_VERT )
 195         msflags |= IBS_VERTCAPTION;
 196     if ( style & wxTINY_CAPTION_HORIZ )
 197         msflags |= IBS_HORZCAPTION;
 198 #else
 199     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 200         msflags |= WS_CAPTION;
 201 #endif
 202
 203     if ( exflags )
 204     {
 205 #if !defined(__WIN16__)
 206         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 207         {
 208             if ( style & wxFRAME_TOOL_WINDOW )
 209             {
 210                 // create the palette-like window
 211                 *exflags |= WS_EX_TOOLWINDOW;
 212             }
 213
 214             // We have to solve 2 different problems here:
 215             //
 216             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 217             //    taskbar even if they don't have a parent
 218             //
 219             // 2. frames without this style should appear in the taskbar even
 220             //    if they're owned (Windows only puts non owned windows into
 221             //    the taskbar normally)
 222             //
 223             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 224             // first one is dealt with in our MSWGetParent() method
 225             // implementation
 226 #ifndef __WXWINCE__
 227             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 228             {
 229                 // need to force the frame to appear in the taskbar
 230                 *exflags |= WS_EX_APPWINDOW;
 231             }
 232 #endif
 233             //else: nothing to do [here]
 234         }
 235 #endif // !Win16
 236
 237         if ( style & wxSTAY_ON_TOP )
 238             *exflags |= WS_EX_TOPMOST;
 239
 240 #ifdef __WIN32__
 241         if ( GetExtraStyle() & wxFRAME_EX_CONTEXTHELP )
 242             *exflags |= WS_EX_CONTEXTHELP;
 243 #endif // __WIN32__
 244     }
 245
 246     return msflags;
 247 }
 248
 249 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 250 {
 251     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 252     // parent HWND or it would be always on top of its parent which is not what
 253     // we usually want (in fact, we only want it for frames with the
 254     // wxFRAME_FLOAT_ON_PARENT flag)
 255     HWND hwndParent = NULL;
 256     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 257     {
 258         const wxWindow *parent = GetParent();
 259
 260         if ( !parent )
 261         {
 262             // this flag doesn't make sense then and will be ignored
 263             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 264         }
 265         else
 266         {
 267             hwndParent = GetHwndOf(parent);
 268         }
 269     }
 270     //else: don't float on parent, must not be owned
 271
 272     // now deal with the 2nd taskbar-related problem (see comments above in
 273     // MSWGetStyle())
 274     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 275     {
 276         // use hidden parent
 277         hwndParent = wxTLWHiddenParentModule::GetHWND();
 278     }
 279
 280     return (WXHWND)hwndParent;
 281 }
 282
 283 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 284                                        const wxString& title,
 285                                        const wxPoint& pos,
 286                                        const wxSize& size)
 287 {
 288 #ifdef __WXMICROWIN__
 289     // no dialogs support under MicroWin yet
 290     return CreateFrame(title, pos, size);
 291 #else // !__WXMICROWIN__
 292     wxWindow *parent = GetParent();
 293
 294     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 295     // app window as parent - this avoids creating modal dialogs without
 296     // parent
 297     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 298     {
 299         parent = wxTheApp->GetTopWindow();
 300
 301         if ( parent )
 302         {
 303             // don't use transient windows as parents, this is dangerous as it
 304             // can lead to a crash if the parent is destroyed before the child
 305             //
 306             // also don't use the window which is currently hidden as then the
 307             // dialog would be hidden as well
 308             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 309                     !parent->IsShown() )
 310             {
 311                 parent = NULL;
 312             }
 313         }
 314     }
 315
 316     m_hWnd = (WXHWND)::CreateDialogIndirect
 317                        (
 318                         wxGetInstance(),
 319                         (DLGTEMPLATE*)dlgTemplate,
 320                         parent ? GetHwndOf(parent) : NULL,
 321                         (DLGPROC)wxDlgProc
 322                        );
 323
 324     if ( !m_hWnd )
 325     {
 326         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 327
 328         wxLogSysError(wxT("Can't create dialog using memory template"));
 329
 330         return FALSE;
 331     }
 332
 333     WXDWORD exflags;
 334     (void)MSWGetCreateWindowFlags(&exflags);
 335
 336     if ( exflags )
 337     {
 338         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 339         ::SetWindowPos(GetHwnd(), NULL, 0, 0, 0, 0,
 340                        SWP_NOSIZE |
 341                        SWP_NOMOVE |
 342                        SWP_NOZORDER |
 343                        SWP_NOACTIVATE);
 344     }
 345
 346 #if defined(__WIN95__)
 347     // For some reason, the system menu is activated when we use the
 348     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 349     if ( exflags & WS_EX_CONTEXTHELP )
 350     {
 351         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 352         if ( winTop )
 353         {
 354             wxIcon icon = winTop->GetIcon();
 355             if ( icon.Ok() )
 356             {
 357                 ::SendMessage(GetHwnd(), WM_SETICON,
 358                               (WPARAM)TRUE,
 359                               (LPARAM)GetHiconOf(icon));
 360             }
 361         }
 362     }
 363 #endif // __WIN95__
 364
 365     // move the dialog to its initial position without forcing repainting
 366     int x, y, w, h;
 367     if ( !MSWGetCreateWindowCoords(pos, size, x, y, w, h) )
 368     {
 369         x =
 370         w = (int)CW_USEDEFAULT;
 371     }
 372
 373     // we can't use CW_USEDEFAULT here as we're not calling CreateWindow()
 374     // and passing CW_USEDEFAULT to MoveWindow() results in resizing the
 375     // window to (0, 0) size which breaks quite a lot of things, e.g. the
 376     // sizer calculation in wxSizer::Fit()
 377     if ( w == (int)CW_USEDEFAULT )
 378     {
 379         // the exact number doesn't matter, the dialog will be resized
 380         // again soon anyhow but it should be big enough to allow
 381         // calculation relying on "totalSize - clientSize > 0" work, i.e.
 382         // at least greater than the title bar height
 383         w =
 384         h = 100;
 385     }
 386
 387     if ( x == (int)CW_USEDEFAULT )
 388     {
 389         // centre it on the screen - what else can we do?
 390         wxSize sizeDpy = wxGetDisplaySize();
 391
 392         x = (sizeDpy.x - w) / 2;
 393         y = (sizeDpy.y - h) / 2;
 394     }
 395
 396     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 397     {
 398         wxLogLastError(wxT("MoveWindow"));
 399     }
 400
 401     if ( !title.empty() )
 402     {
 403         ::SetWindowText(GetHwnd(), title);
 404     }
 405
 406     SubclassWin(m_hWnd);
 407
 408     return TRUE;
 409 #endif // __WXMICROWIN__/!__WXMICROWIN__
 410 }
 411
 412 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 413                                       const wxPoint& pos,
 414                                       const wxSize& size)
 415 {
 416     WXDWORD exflags;
 417     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 418
 419     return MSWCreate(wxCanvasClassName, title, pos, size, flags, exflags);
 420 }
 421
 422 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 423                                  wxWindowID id,
 424                                  const wxString& title,
 425                                  const wxPoint& pos,
 426                                  const wxSize& size,
 427                                  long style,
 428                                  const wxString& name)
 429 {
 430     bool ret = false;
 431
 432     // init our fields
 433     Init();
 434
 435     m_windowStyle = style;
 436
 437     SetName(name);
 438
 439     m_windowId = id == -1 ? NewControlId() : id;
 440
 441     wxTopLevelWindows.Append(this);
 442
 443     if ( parent )
 444         parent->AddChild(this);
 445
 446     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 447     {
 448         // we have different dialog templates to allows creation of dialogs
 449         // with & without captions under MSWindows, resizeable or not (but a
 450         // resizeable dialog always has caption - otherwise it would look too
 451         // strange)
 452
 453         // we need 3 additional WORDs for dialog menu, class and title (as we
 454         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 455         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 456         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 457         memset(dlgTemplate, 0, dlgsize);
 458
 459         // these values are arbitrary, they won't be used normally anyhow
 460         dlgTemplate->x  = 34;
 461         dlgTemplate->y  = 22;
 462         dlgTemplate->cx = 144;
 463         dlgTemplate->cy = 75;
 464
 465         // reuse the code in MSWGetStyle() but correct the results slightly for
 466         // the dialog
 467         dlgTemplate->style = MSWGetStyle(style, NULL);
 468
 469         // all dialogs are popups
 470         dlgTemplate->style |= WS_POPUP;
 471
 472         // force 3D-look if necessary, it looks impossibly ugly otherwise
 473         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 474             dlgTemplate->style |= DS_MODALFRAME;
 475
 476         ret = CreateDialog(dlgTemplate, title, pos, size);
 477         free(dlgTemplate);
 478     }
 479     else // !dialog
 480     {
 481         ret = CreateFrame(title, pos, size);
 482     }
 483
 484     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 485     {
 486         EnableCloseButton(false);
 487     }
 488
 489     return ret;
 490 }
 491
 492 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 493 {
 494     if ( wxModelessWindows.Find(this) )
 495         wxModelessWindows.DeleteObject(this);
 496
 497     // after destroying an owned window, Windows activates the next top level
 498     // window in Z order but it may be different from our owner (to reproduce
 499     // this simply Alt-TAB to another application and back before closing the
 500     // owned frame) whereas we always want to yield activation to our parent
 501     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 502     {
 503         wxWindow *parent = GetParent();
 504         if ( parent )
 505         {
 506             ::BringWindowToTop(GetHwndOf(parent));
 507         }
 508     }
 509 }
 510
 511 // ----------------------------------------------------------------------------
 512 // wxTopLevelWindowMSW showing
 513 // ----------------------------------------------------------------------------
 514
 515 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 516 {
 517     ::ShowWindow(GetHwnd(), nShowCmd);
 518
 519     m_iconized = nShowCmd == SW_MINIMIZE;
 520 }
 521
 522 bool wxTopLevelWindowMSW::Show(bool show)
 523 {
 524     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 525     if ( !wxWindowBase::Show(show) )
 526         return FALSE;
 527
 528     int nShowCmd;
 529     if ( show )
 530     {
 531         if ( m_maximizeOnShow )
 532         {
 533             // show and maximize
 534             nShowCmd = SW_MAXIMIZE;
 535
 536             m_maximizeOnShow = FALSE;
 537         }
 538         else // just show
 539         {
 540            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 541                nShowCmd = SW_SHOWNA;
 542            else
 543                nShowCmd = SW_SHOW;
 544         }
 545     }
 546     else // hide
 547     {
 548         nShowCmd = SW_HIDE;
 549     }
 550
 551     DoShowWindow(nShowCmd);
 552
 553     if ( show )
 554     {
 555         ::BringWindowToTop(GetHwnd());
 556
 557         wxActivateEvent event(wxEVT_ACTIVATE, TRUE, m_windowId);
 558         event.SetEventObject( this );
 559         GetEventHandler()->ProcessEvent(event);
 560     }
 561     else // hide
 562     {
 563         // Try to highlight the correct window (the parent)
 564         if ( GetParent() )
 565         {
 566             HWND hWndParent = GetHwndOf(GetParent());
 567             if (hWndParent)
 568                 ::BringWindowToTop(hWndParent);
 569         }
 570     }
 571
 572     return TRUE;
 573 }
 574
 575 // ----------------------------------------------------------------------------
 576 // wxTopLevelWindowMSW maximize/minimize
 577 // ----------------------------------------------------------------------------
 578
 579 void wxTopLevelWindowMSW::Maximize(bool maximize)
 580 {
 581     if ( IsShown() )
 582     {
 583         // just maximize it directly
 584         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 585     }
 586     else // hidden
 587     {
 588         // we can't maximize the hidden frame because it shows it as well, so
 589         // just remember that we should do it later in this case
 590         m_maximizeOnShow = maximize;
 591     }
 592 }
 593
 594 bool wxTopLevelWindowMSW::IsMaximized() const
 595 {
 596 #ifdef __WXWINCE__
 597     return FALSE;
 598 #else
 599     return ::IsZoomed(GetHwnd()) != 0;
 600 #endif
 601 }
 602
 603 void wxTopLevelWindowMSW::Iconize(bool iconize)
 604 {
 605     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 606 }
 607
 608 bool wxTopLevelWindowMSW::IsIconized() const
 609 {
 610 #ifdef __WXWINCE__
 611     return FALSE;
 612 #else
 613     // also update the current state
 614     ((wxTopLevelWindowMSW *)this)->m_iconized = ::IsIconic(GetHwnd()) != 0;
 615
 616     return m_iconized;
 617 #endif
 618 }
 619
 620 void wxTopLevelWindowMSW::Restore()
 621 {
 622     DoShowWindow(SW_RESTORE);
 623 }
 624
 625 // ----------------------------------------------------------------------------
 626 // wxTopLevelWindowMSW fullscreen
 627 // ----------------------------------------------------------------------------
 628
 629 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 630 {
 631     if ( show == IsFullScreen() )
 632     {
 633         // nothing to do
 634         return TRUE;
 635     }
 636
 637     m_fsIsShowing = show;
 638
 639     if ( show )
 640     {
 641         m_fsStyle = style;
 642
 643         // zap the frame borders
 644
 645         // save the 'normal' window style
 646         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 647
 648         // save the old position, width & height, maximize state
 649         m_fsOldSize = GetRect();
 650         m_fsIsMaximized = IsMaximized();
 651
 652         // decide which window style flags to turn off
 653         LONG newStyle = m_fsOldWindowStyle;
 654         LONG offFlags = 0;
 655
 656         if (style & wxFULLSCREEN_NOBORDER)
 657         {
 658             offFlags |= WS_BORDER;
 659 #ifndef __WXWINCE__
 660             offFlags |= WS_THICKFRAME;
 661 #endif
 662         }
 663         if (style & wxFULLSCREEN_NOCAPTION)
 664             offFlags |= WS_CAPTION | WS_SYSMENU;
 665
 666         newStyle &= ~offFlags;
 667
 668         // change our window style to be compatible with full-screen mode
 669         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 670
 671         wxRect rect;
 672 #if wxUSE_DISPLAY
 673         // resize to the size of the display containing us
 674         int dpy = wxDisplay::GetFromWindow(this);
 675         if ( dpy != wxNOT_FOUND )
 676         {
 677             rect = wxDisplay(dpy).GetGeometry();
 678         }
 679         else // fall back to the main desktop
 680 #else // wxUSE_DISPLAY
 681         {
 682             // FIXME: implement for WinCE
 683 #ifndef __WXWINCE__
 684             // resize to the size of the desktop
 685             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 686 #endif
 687         }
 688 #endif // wxUSE_DISPLAY
 689
 690         SetSize(rect);
 691
 692         // now flush the window style cache and actually go full-screen
 693         long flags = SWP_FRAMECHANGED;
 694
 695         // showing the frame full screen should also show it if it's still
 696         // hidden
 697         if ( !IsShown() )
 698         {
 699             // don't call wxWindow version to avoid flicker from calling
 700             // ::ShowWindow() -- we're going to show the window at the correct
 701             // location directly below -- but do call the wxWindowBase version
 702             // to sync the internal m_isShown flag
 703             wxWindowBase::Show();
 704
 705             flags |= SWP_SHOWWINDOW;
 706         }
 707
 708         SetWindowPos(GetHwnd(), HWND_TOP,
 709                      rect.x, rect.y, rect.width, rect.height,
 710                      flags);
 711
 712         // finally send an event allowing the window to relayout itself &c
 713         wxSizeEvent event(rect.GetSize(), GetId());
 714         GetEventHandler()->ProcessEvent(event);
 715     }
 716     else // stop showing full screen
 717     {
 718         Maximize(m_fsIsMaximized);
 719         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 720         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 721             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 722     }
 723
 724     return TRUE;
 725 }
 726
 727 // ----------------------------------------------------------------------------
 728 // wxTopLevelWindowMSW misc
 729 // ----------------------------------------------------------------------------
 730
 731 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 732 {
 733     SetIcons( wxIconBundle( icon ) );
 734 }
 735
 736 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 737 {
 738     wxTopLevelWindowBase::SetIcons(icons);
 739
 740 #if defined(__WIN95__) && !defined(__WXMICROWIN__)
 741     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 742     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 743     {
 744         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 745                        (LPARAM)GetHiconOf(sml) );
 746     }
 747
 748     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 749     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 750     {
 751         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 752                        (LPARAM)GetHiconOf(big) );
 753     }
 754 #endif // __WIN95__
 755 }
 756
 757 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 758 {
 759 #if !defined(__WXMICROWIN__)
 760     // get system (a.k.a. window) menu
 761     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 762     if ( !hmenu )
 763     {
 764         // no system menu at all -- ok if we want to remove the close button
 765         // anyhow, but bad if we want to show it
 766         return !enable;
 767     }
 768
 769     // enabling/disabling the close item from it also automatically
 770     // disables/enables the close title bar button
 771     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 772                           MF_BYCOMMAND |
 773                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 774     {
 775         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 776
 777         return FALSE;
 778     }
 779
 780     // update appearance immediately
 781     if ( !::DrawMenuBar(GetHwnd()) )
 782     {
 783         wxLogLastError(_T("DrawMenuBar"));
 784     }
 785 #endif // !__WXMICROWIN__
 786
 787     return TRUE;
 788 }
 789
 790 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 791 {
 792 #ifdef __WXWINCE__
 793     return FALSE;
 794 #else
 795     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), FALSE,
 796                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 797
 798     // The empty region signifies that the shape should be removed from the
 799     // window.
 800     if ( region.IsEmpty() )
 801     {
 802         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 803         {
 804             wxLogLastError(_T("SetWindowRgn"));
 805             return FALSE;
 806         }
 807         return TRUE;
 808     }
 809
 810     // Windows takes ownership of the region, so
 811     // we'll have to make a copy of the region to give to it.
 812     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 813     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 814     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 815     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 816     delete[] (char*) rgnData;
 817
 818     // SetWindowRgn expects the region to be in coordinants
 819     // relative to the window, not the client area.  Figure
 820     // out the offset, if any.
 821     RECT rect;
 822     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 823     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 824     ::GetClientRect(GetHwnd(), &rect);
 825     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
 826     ::OffsetRgn(hrgn, -rect.left, -rect.top);
 827
 828     // Now call the shape API with the new region.
 829     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
 830     {
 831         wxLogLastError(_T("SetWindowRgn"));
 832         return FALSE;
 833     }
 834     return TRUE;
 835 #endif
 836 }
 837
 838 // ----------------------------------------------------------------------------
 839 // wxTopLevelWindow event handling
 840 // ----------------------------------------------------------------------------
 841
 842 // Default activation behaviour - set the focus for the first child
 843 // subwindow found.
 844 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
 845 {
 846     if ( event.GetActive() )
 847     {
 848         // restore focus to the child which was last focused
 849         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
 850
 851         wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 852                                             : NULL;
 853         if ( !parent )
 854         {
 855             parent = this;
 856         }
 857
 858         wxSetFocusToChild(parent, &m_winLastFocused);
 859     }
 860     else // deactivating
 861     {
 862         // remember the last focused child if it is our child
 863         m_winLastFocused = FindFocus();
 864
 865         if ( m_winLastFocused )
 866         {
 867             // let it know that it doesn't have focus any more
 868             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
 869         }
 870
 871         // so we NULL it out if it's a child from some other frame
 872         wxWindow *win = m_winLastFocused;
 873         while ( win )
 874         {
 875             if ( win->IsTopLevel() )
 876             {
 877                 if ( win != this )
 878                 {
 879                     m_winLastFocused = NULL;
 880                 }
 881
 882                 break;
 883             }
 884
 885             win = win->GetParent();
 886         }
 887
 888         wxLogTrace(_T("focus"),
 889                    _T("wxTLW %08x deactivated, last focused: %08x."),
 890                    (int) m_hWnd,
 891                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
 892                                            : NULL));
 893
 894         event.Skip();
 895     }
 896 }
 897
 898 // the DialogProc for all wxWindows dialogs
 899 LONG APIENTRY _EXPORT
 900 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
 901 {
 902     switch ( message )
 903     {
 904         case WM_INITDIALOG:
 905             // for this message, returning TRUE tells system to set focus to
 906             // the first control in the dialog box, but as we set the focus
 907             // ourselves, we return FALSE from here as well, so fall through
 908
 909         default:
 910             // for all the other ones, FALSE means that we didn't process the
 911             // message
 912             return FALSE;
 913     }
 914 }
 915
 916 // ============================================================================
 917 // wxTLWHiddenParentModule implementation
 918 // ============================================================================
 919
 920 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
 921
 922 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
 923
 924 bool wxTLWHiddenParentModule::OnInit()
 925 {
 926     ms_hwnd = NULL;
 927     ms_className = NULL;
 928
 929     return TRUE;
 930 }
 931
 932 void wxTLWHiddenParentModule::OnExit()
 933 {
 934     if ( ms_hwnd )
 935     {
 936         if ( !::DestroyWindow(ms_hwnd) )
 937         {
 938             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
 939         }
 940
 941         ms_hwnd = NULL;
 942     }
 943
 944     if ( ms_className )
 945     {
 946         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
 947         {
 948             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
 949         }
 950
 951         ms_className = NULL;
 952     }
 953 }
 954
 955 /* static */
 956 HWND wxTLWHiddenParentModule::GetHWND()
 957 {
 958     if ( !ms_hwnd )
 959     {
 960         if ( !ms_className )
 961         {
 962             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
 963
 964             WNDCLASS wndclass;
 965             wxZeroMemory(wndclass);
 966
 967             wndclass.lpfnWndProc   = DefWindowProc;
 968             wndclass.hInstance     = wxGetInstance();
 969             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
 970
 971             if ( !::RegisterClass(&wndclass) )
 972             {
 973                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
 974             }
 975             else
 976             {
 977                 ms_className = HIDDEN_PARENT_CLASS;
 978             }
 979         }
 980
 981         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
 982                                  (HMENU)NULL, wxGetInstance(), NULL);
 983         if ( !ms_hwnd )
 984         {
 985             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
 986         }
 987     }
 988
 989     return ms_hwnd;
 990 }
 991
 992