src/msw/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/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 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #include "wx/toplevel.h"
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/app.h"
  31     #include "wx/dialog.h"
  32     #include "wx/string.h"
  33     #include "wx/log.h"
  34     #include "wx/intl.h"
  35     #include "wx/frame.h"
  36     #include "wx/containr.h"        // wxSetFocusToChild()
  37     #include "wx/module.h"
  38 #endif //WX_PRECOMP
  39
  40 #include "wx/dynlib.h"
  41
  42 #include "wx/msw/private.h"
  43 #if defined(__WXWINCE__) && !defined(__HANDHELDPC__)
  44     #include <ole2.h>
  45     #include <shellapi.h>
  46     // Standard SDK doesn't have aygshell.dll: see include/wx/msw/wince/libraries.h
  47     #if _WIN32_WCE < 400 || !defined(__WINCE_STANDARDSDK__)
  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 #include "wx/display.h"
  57
  58 #ifndef ICON_BIG
  59     #define ICON_BIG 1
  60 #endif
  61
  62 #ifndef ICON_SMALL
  63     #define ICON_SMALL 0
  64 #endif
  65
  66 // ----------------------------------------------------------------------------
  67 // stubs for missing functions under MicroWindows
  68 // ----------------------------------------------------------------------------
  69
  70 #ifdef __WXMICROWIN__
  71
  72 // static inline bool IsIconic(HWND WXUNUSED(hwnd)) { return false; }
  73 static inline bool IsZoomed(HWND WXUNUSED(hwnd)) { return false; }
  74
  75 #endif // __WXMICROWIN__
  76
  77 // NB: wxDlgProc must be defined here and not in dialog.cpp because the latter
  78 //     is not included by wxUniv build which does need wxDlgProc
  79 LONG APIENTRY _EXPORT
  80 wxDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
  81
  82 // ----------------------------------------------------------------------------
  83 // globals
  84 // ----------------------------------------------------------------------------
  85
  86 // the name of the default wxWidgets class
  87 #ifdef __WXWINCE__
  88 extern       wxChar *wxCanvasClassName;
  89 #else
  90 extern const wxChar *wxCanvasClassName;
  91 #endif
  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 #if defined(__SMARTPHONE__) && defined(__WXWINCE__)
 146     m_MenuBarHWND = 0;
 147 #endif
 148
 149 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
 150     SHACTIVATEINFO* info = new SHACTIVATEINFO;
 151     wxZeroMemory(*info);
 152     info->cbSize = sizeof(SHACTIVATEINFO);
 153
 154     m_activateInfo = (void*) info;
 155 #endif
 156 }
 157
 158 WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
 159 {
 160     // let the base class deal with the common styles but fix the ones which
 161     // don't make sense for us (we also deal with the borders ourselves)
 162     WXDWORD msflags = wxWindow::MSWGetStyle
 163                       (
 164                         (style & ~wxBORDER_MASK) | wxBORDER_NONE, exflags
 165                       ) & ~WS_CHILD & ~WS_VISIBLE;
 166
 167     // For some reason, WS_VISIBLE needs to be defined on creation for
 168     // SmartPhone 2003. The title can fail to be displayed otherwise.
 169 #if defined(__SMARTPHONE__) || (defined(__WXWINCE__) && _WIN32_WCE < 400)
 170     msflags |= WS_VISIBLE;
 171     ((wxTopLevelWindowMSW*)this)->wxWindowBase::Show(true);
 172 #endif
 173
 174     // first select the kind of window being created
 175     //
 176     // note that if we don't set WS_POPUP, Windows assumes WS_OVERLAPPED and
 177     // creates a window with both caption and border, hence we need to use
 178     // WS_POPUP in a few cases just to avoid having caption/border which we
 179     // don't want
 180
 181     // border and caption styles
 182     if ( ( style & wxRESIZE_BORDER ) && !IsAlwaysMaximized())
 183         msflags |= WS_THICKFRAME;
 184     else if ( exflags && ((style & wxBORDER_DOUBLE) || (style & wxBORDER_RAISED)) )
 185         *exflags |= WS_EX_DLGMODALFRAME;
 186     else if ( !(style & wxBORDER_NONE) )
 187         msflags |= WS_BORDER;
 188 #ifndef __POCKETPC__
 189     else
 190         msflags |= WS_POPUP;
 191 #endif
 192
 193     // normally we consider that all windows without a caption must be popups,
 194     // but CE is an exception: there windows normally do not have the caption
 195     // but shouldn't be made popups as popups can't have menus and don't look
 196     // like normal windows anyhow
 197
 198     // TODO: Smartphone appears to like wxCAPTION, but we should check that
 199     // we need it.
 200 #if defined(__SMARTPHONE__) || !defined(__WXWINCE__)
 201     if ( style & wxCAPTION )
 202         msflags |= WS_CAPTION;
 203 #ifndef __WXWINCE__
 204     else
 205         msflags |= WS_POPUP;
 206 #endif // !__WXWINCE__
 207 #endif
 208
 209     // next translate the individual flags
 210
 211     // WS_EX_CONTEXTHELP is incompatible with WS_MINIMIZEBOX and WS_MAXIMIZEBOX
 212     // and is ignored if we specify both of them, but chances are that if we
 213     // use wxWS_EX_CONTEXTHELP, we really do want to have the context help
 214     // button while wxMINIMIZE/wxMAXIMIZE are included by default, so the help
 215     // takes precedence
 216     if ( !(GetExtraStyle() & wxWS_EX_CONTEXTHELP) )
 217     {
 218         if ( style & wxMINIMIZE_BOX )
 219             msflags |= WS_MINIMIZEBOX;
 220         if ( style & wxMAXIMIZE_BOX )
 221             msflags |= WS_MAXIMIZEBOX;
 222     }
 223
 224 #ifndef __WXWINCE__
 225     if ( style & wxSYSTEM_MENU )
 226         msflags |= WS_SYSMENU;
 227 #endif
 228
 229     // NB: under CE these 2 styles are not supported currently, we should
 230     //     call Minimize()/Maximize() "manually" if we want to support them
 231     if ( style & wxMINIMIZE )
 232         msflags |= WS_MINIMIZE;
 233
 234     if ( style & wxMAXIMIZE )
 235         msflags |= WS_MAXIMIZE;
 236
 237     // Keep this here because it saves recoding this function in wxTinyFrame
 238     if ( style & (wxTINY_CAPTION_VERT | wxTINY_CAPTION_HORIZ) )
 239         msflags |= WS_CAPTION;
 240
 241     if ( exflags )
 242     {
 243         // there is no taskbar under CE, so omit all this
 244 #if !defined(__WXWINCE__)
 245         if ( !(GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) )
 246         {
 247             if ( style & wxFRAME_TOOL_WINDOW )
 248             {
 249                 // create the palette-like window
 250                 *exflags |= WS_EX_TOOLWINDOW;
 251
 252                 // tool windows shouldn't appear on the taskbar (as documented)
 253                 style |= wxFRAME_NO_TASKBAR;
 254             }
 255
 256             // We have to solve 2 different problems here:
 257             //
 258             // 1. frames with wxFRAME_NO_TASKBAR flag shouldn't appear in the
 259             //    taskbar even if they don't have a parent
 260             //
 261             // 2. frames without this style should appear in the taskbar even
 262             //    if they're owned (Windows only puts non owned windows into
 263             //    the taskbar normally)
 264             //
 265             // The second one is solved here by using WS_EX_APPWINDOW flag, the
 266             // first one is dealt with in our MSWGetParent() method
 267             // implementation
 268             if ( !(style & wxFRAME_NO_TASKBAR) && GetParent() )
 269             {
 270                 // need to force the frame to appear in the taskbar
 271                 *exflags |= WS_EX_APPWINDOW;
 272             }
 273             //else: nothing to do [here]
 274         }
 275
 276         if ( GetExtraStyle() & wxWS_EX_CONTEXTHELP )
 277             *exflags |= WS_EX_CONTEXTHELP;
 278 #endif // !__WXWINCE__
 279
 280         if ( style & wxSTAY_ON_TOP )
 281             *exflags |= WS_EX_TOPMOST;
 282     }
 283
 284     return msflags;
 285 }
 286
 287 WXHWND wxTopLevelWindowMSW::MSWGetParent() const
 288 {
 289     // for the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
 290     // parent HWND or it would be always on top of its parent which is not what
 291     // we usually want (in fact, we only want it for frames with the
 292     // wxFRAME_FLOAT_ON_PARENT flag)
 293     HWND hwndParent = NULL;
 294     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 295     {
 296         const wxWindow *parent = GetParent();
 297
 298         if ( !parent )
 299         {
 300             // this flag doesn't make sense then and will be ignored
 301             wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
 302         }
 303         else
 304         {
 305             hwndParent = GetHwndOf(parent);
 306         }
 307     }
 308     //else: don't float on parent, must not be owned
 309
 310     // now deal with the 2nd taskbar-related problem (see comments above in
 311     // MSWGetStyle())
 312     if ( HasFlag(wxFRAME_NO_TASKBAR) && !hwndParent )
 313     {
 314         // use hidden parent
 315         hwndParent = wxTLWHiddenParentModule::GetHWND();
 316     }
 317
 318     return (WXHWND)hwndParent;
 319 }
 320
 321 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
 322 bool wxTopLevelWindowMSW::HandleSettingChange(WXWPARAM wParam, WXLPARAM lParam)
 323 {
 324     SHACTIVATEINFO *info = (SHACTIVATEINFO*) m_activateInfo;
 325     if ( info )
 326     {
 327         SHHandleWMSettingChange(GetHwnd(), wParam, lParam, info);
 328     }
 329
 330     return wxWindowMSW::HandleSettingChange(wParam, lParam);
 331 }
 332 #endif
 333
 334 WXLRESULT wxTopLevelWindowMSW::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
 335 {
 336     WXLRESULT rc = 0;
 337     bool processed = false;
 338
 339 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
 340     switch ( message )
 341     {
 342         case WM_ACTIVATE:
 343         {
 344             SHACTIVATEINFO* info = (SHACTIVATEINFO*) m_activateInfo;
 345             if (info)
 346             {
 347                 DWORD flags = 0;
 348                 if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) flags = SHA_INPUTDIALOG;
 349                 SHHandleWMActivate(GetHwnd(), wParam, lParam, info, flags);
 350             }
 351
 352             // This implicitly sends a wxEVT_ACTIVATE_APP event
 353             if (wxTheApp)
 354                 wxTheApp->SetActive(wParam != 0, FindFocus());
 355
 356             break;
 357         }
 358         case WM_HIBERNATE:
 359         {
 360             if (wxTheApp)
 361             {
 362                 wxActivateEvent event(wxEVT_HIBERNATE, true, wxID_ANY);
 363                 event.SetEventObject(wxTheApp);
 364                 processed = wxTheApp->ProcessEvent(event);
 365             }
 366             break;
 367         }
 368     }
 369 #endif
 370
 371     if ( !processed )
 372         rc = wxTopLevelWindowBase::MSWWindowProc(message, wParam, lParam);
 373
 374     return rc;
 375 }
 376
 377 bool wxTopLevelWindowMSW::CreateDialog(const void *dlgTemplate,
 378                                        const wxString& title,
 379                                        const wxPoint& pos,
 380                                        const wxSize& size)
 381 {
 382 #ifdef __WXMICROWIN__
 383     // no dialogs support under MicroWin yet
 384     return CreateFrame(title, pos, size);
 385 #else // !__WXMICROWIN__
 386     wxWindow *parent = GetParent();
 387
 388     // for the dialogs without wxDIALOG_NO_PARENT style, use the top level
 389     // app window as parent - this avoids creating modal dialogs without
 390     // parent
 391     if ( !parent && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
 392     {
 393         parent = wxTheApp->GetTopWindow();
 394
 395         if ( parent )
 396         {
 397             // don't use transient windows as parents, this is dangerous as it
 398             // can lead to a crash if the parent is destroyed before the child
 399             //
 400             // also don't use the window which is currently hidden as then the
 401             // dialog would be hidden as well
 402             if ( (parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ||
 403                     !parent->IsShown() )
 404             {
 405                 parent = NULL;
 406             }
 407         }
 408     }
 409
 410     m_hWnd = (WXHWND)::CreateDialogIndirect
 411                        (
 412                         wxGetInstance(),
 413                         (DLGTEMPLATE*)dlgTemplate,
 414                         parent ? GetHwndOf(parent) : NULL,
 415                         (DLGPROC)wxDlgProc
 416                        );
 417
 418     if ( !m_hWnd )
 419     {
 420         wxFAIL_MSG(wxT("Failed to create dialog. Incorrect DLGTEMPLATE?"));
 421
 422         wxLogSysError(wxT("Can't create dialog using memory template"));
 423
 424         return false;
 425     }
 426
 427     WXDWORD exflags;
 428     (void)MSWGetCreateWindowFlags(&exflags);
 429
 430     if ( exflags )
 431     {
 432         ::SetWindowLong(GetHwnd(), GWL_EXSTYLE, exflags);
 433         ::SetWindowPos(GetHwnd(),
 434                        exflags & WS_EX_TOPMOST ? HWND_TOPMOST : 0,
 435                        0, 0, 0, 0,
 436                        SWP_NOSIZE |
 437                        SWP_NOMOVE |
 438                        (exflags & WS_EX_TOPMOST ? 0 : SWP_NOZORDER) |
 439                        SWP_NOACTIVATE);
 440     }
 441
 442 #if !defined(__WXWINCE__)
 443     // For some reason, the system menu is activated when we use the
 444     // WS_EX_CONTEXTHELP style, so let's set a reasonable icon
 445     if ( exflags & WS_EX_CONTEXTHELP )
 446     {
 447         wxFrame *winTop = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
 448         if ( winTop )
 449         {
 450             wxIcon icon = winTop->GetIcon();
 451             if ( icon.Ok() )
 452             {
 453                 ::SendMessage(GetHwnd(), WM_SETICON,
 454                               (WPARAM)TRUE,
 455                               (LPARAM)GetHiconOf(icon));
 456             }
 457         }
 458     }
 459 #endif
 460
 461     // move the dialog to its initial position without forcing repainting
 462     int x, y, w, h;
 463     (void)MSWGetCreateWindowCoords(pos, size, x, y, w, h);
 464
 465     if ( x == (int)CW_USEDEFAULT )
 466     {
 467         // centre it on the screen - what else can we do?
 468         wxSize sizeDpy = wxGetDisplaySize();
 469
 470         x = (sizeDpy.x - w) / 2;
 471         y = (sizeDpy.y - h) / 2;
 472     }
 473
 474 #if !defined(__WXWINCE__) || defined(__WINCE_STANDARDSDK__)
 475     if ( !::MoveWindow(GetHwnd(), x, y, w, h, FALSE) )
 476     {
 477         wxLogLastError(wxT("MoveWindow"));
 478     }
 479 #endif
 480
 481     if ( !title.empty() )
 482     {
 483         ::SetWindowText(GetHwnd(), title);
 484     }
 485
 486     SubclassWin(m_hWnd);
 487
 488 #ifdef __SMARTPHONE__
 489     // Work around title non-display glitch
 490     Show(false);
 491 #endif
 492
 493     return true;
 494 #endif // __WXMICROWIN__/!__WXMICROWIN__
 495 }
 496
 497 bool wxTopLevelWindowMSW::CreateFrame(const wxString& title,
 498                                       const wxPoint& pos,
 499                                       const wxSize& size)
 500 {
 501     WXDWORD exflags;
 502     WXDWORD flags = MSWGetCreateWindowFlags(&exflags);
 503
 504     const wxSize sz = IsAlwaysMaximized() ? wxDefaultSize : size;
 505
 506     if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft )
 507         exflags |= WS_EX_LAYOUTRTL;
 508
 509     return MSWCreate(wxCanvasClassName, title, pos, sz, flags, exflags);
 510 }
 511
 512 bool wxTopLevelWindowMSW::Create(wxWindow *parent,
 513                                  wxWindowID id,
 514                                  const wxString& title,
 515                                  const wxPoint& pos,
 516                                  const wxSize& size,
 517                                  long style,
 518                                  const wxString& name)
 519 {
 520     bool ret wxDUMMY_INITIALIZE(false);
 521
 522     // init our fields
 523     Init();
 524
 525     wxSize sizeReal = size;
 526     if ( !sizeReal.IsFullySpecified() )
 527     {
 528         sizeReal.SetDefaults(GetDefaultSize());
 529     }
 530
 531     m_windowStyle = style;
 532
 533     SetName(name);
 534
 535     m_windowId = id == wxID_ANY ? NewControlId() : id;
 536
 537     wxTopLevelWindows.Append(this);
 538
 539     if ( parent )
 540         parent->AddChild(this);
 541
 542     if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
 543     {
 544         // we have different dialog templates to allows creation of dialogs
 545         // with & without captions under MSWindows, resizeable or not (but a
 546         // resizeable dialog always has caption - otherwise it would look too
 547         // strange)
 548
 549         // we need 3 additional WORDs for dialog menu, class and title (as we
 550         // don't use DS_SETFONT we don't need the fourth WORD for the font)
 551         static const int dlgsize = sizeof(DLGTEMPLATE) + (sizeof(WORD) * 3);
 552         DLGTEMPLATE *dlgTemplate = (DLGTEMPLATE *)malloc(dlgsize);
 553         memset(dlgTemplate, 0, dlgsize);
 554
 555         // these values are arbitrary, they won't be used normally anyhow
 556         dlgTemplate->x  = 34;
 557         dlgTemplate->y  = 22;
 558         dlgTemplate->cx = 144;
 559         dlgTemplate->cy = 75;
 560
 561         // reuse the code in MSWGetStyle() but correct the results slightly for
 562         // the dialog
 563         dlgTemplate->style = MSWGetStyle(style, NULL);
 564
 565         // all dialogs are popups
 566         dlgTemplate->style |= WS_POPUP;
 567
 568         if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft )
 569         {
 570             dlgTemplate->dwExtendedStyle |= WS_EX_LAYOUTRTL;
 571         }
 572
 573 #ifndef __WXWINCE__
 574         // force 3D-look if necessary, it looks impossibly ugly otherwise
 575         if ( style & (wxRESIZE_BORDER | wxCAPTION) )
 576             dlgTemplate->style |= DS_MODALFRAME;
 577 #endif
 578
 579         ret = CreateDialog(dlgTemplate, title, pos, sizeReal);
 580         free(dlgTemplate);
 581     }
 582     else // !dialog
 583     {
 584         ret = CreateFrame(title, pos, sizeReal);
 585     }
 586
 587 #ifndef __WXWINCE__
 588     if ( ret && !(GetWindowStyleFlag() & wxCLOSE_BOX) )
 589     {
 590         EnableCloseButton(false);
 591     }
 592 #endif
 593
 594     // for standard dialogs the dialog manager generates WM_CHANGEUISTATE
 595     // itself but for custom windows we have to do it ourselves in order to
 596     // make the keyboard indicators (such as underlines for accelerators and
 597     // focus rectangles) work under Win2k+
 598     if ( ret )
 599     {
 600         MSWUpdateUIState(UIS_INITIALIZE);
 601     }
 602
 603     // Note: if we include PocketPC in this test, dialogs can fail to show up,
 604     // for example the text entry dialog in the dialogs sample. Problem with Maximise()?
 605 #if defined(__WXWINCE__) && (defined(__SMARTPHONE__) || defined(__WINCE_STANDARDSDK__))
 606     if ( ( style & wxMAXIMIZE ) || IsAlwaysMaximized() )
 607     {
 608         this->Maximize();
 609     }
 610 #endif
 611
 612 #if defined(__SMARTPHONE__) && defined(__WXWINCE__)
 613     SetRightMenu(); // to nothing for initialization
 614 #endif
 615
 616     return ret;
 617 }
 618
 619 wxTopLevelWindowMSW::~wxTopLevelWindowMSW()
 620 {
 621 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
 622     SHACTIVATEINFO* info = (SHACTIVATEINFO*) m_activateInfo;
 623     delete info;
 624     m_activateInfo = NULL;
 625 #endif
 626
 627     // after destroying an owned window, Windows activates the next top level
 628     // window in Z order but it may be different from our owner (to reproduce
 629     // this simply Alt-TAB to another application and back before closing the
 630     // owned frame) whereas we always want to yield activation to our parent
 631     if ( HasFlag(wxFRAME_FLOAT_ON_PARENT) )
 632     {
 633         wxWindow *parent = GetParent();
 634         if ( parent )
 635         {
 636             ::BringWindowToTop(GetHwndOf(parent));
 637         }
 638     }
 639 }
 640
 641 // ----------------------------------------------------------------------------
 642 // wxTopLevelWindowMSW showing
 643 // ----------------------------------------------------------------------------
 644
 645 void wxTopLevelWindowMSW::DoShowWindow(int nShowCmd)
 646 {
 647     ::ShowWindow(GetHwnd(), nShowCmd);
 648
 649     m_iconized = nShowCmd == SW_MINIMIZE;
 650 }
 651
 652 bool wxTopLevelWindowMSW::Show(bool show)
 653 {
 654     // don't use wxWindow version as we want to call DoShowWindow() ourselves
 655     if ( !wxWindowBase::Show(show) )
 656         return false;
 657
 658     int nShowCmd;
 659     if ( show )
 660     {
 661         if ( m_maximizeOnShow )
 662         {
 663             // show and maximize
 664             nShowCmd = SW_MAXIMIZE;
 665
 666             // This is necessary, or no window appears
 667 #if defined( __WINCE_STANDARDSDK__) || defined(__SMARTPHONE__)
 668             DoShowWindow(SW_SHOW);
 669 #endif
 670
 671             m_maximizeOnShow = false;
 672         }
 673         else // just show
 674         {
 675            if ( GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 676                nShowCmd = SW_SHOWNA;
 677            else
 678                nShowCmd = SW_SHOW;
 679         }
 680     }
 681     else // hide
 682     {
 683         nShowCmd = SW_HIDE;
 684     }
 685
 686     DoShowWindow(nShowCmd);
 687
 688 #if defined(__WXWINCE__) && (_WIN32_WCE >= 400 && !defined(__POCKETPC__) && !defined(__SMARTPHONE__))
 689     // Addornments have to be added when the frame is the correct size
 690     wxFrame* frame = wxDynamicCast(this, wxFrame);
 691     if (frame && frame->GetMenuBar())
 692         frame->GetMenuBar()->AddAdornments(GetWindowStyleFlag());
 693 #endif
 694
 695     // we only set pending size if we're maximized before being shown, now that
 696     // we're shown we don't need it any more (it is reset in size event handler
 697     // for child windows but we have to do it ourselves for this parent window)
 698     m_pendingSize = wxDefaultSize;
 699
 700     return true;
 701 }
 702
 703 // ----------------------------------------------------------------------------
 704 // wxTopLevelWindowMSW maximize/minimize
 705 // ----------------------------------------------------------------------------
 706
 707 void wxTopLevelWindowMSW::Maximize(bool maximize)
 708 {
 709     if ( IsShown() )
 710     {
 711         // just maximize it directly
 712         DoShowWindow(maximize ? SW_MAXIMIZE : SW_RESTORE);
 713     }
 714     else // hidden
 715     {
 716         // we can't maximize the hidden frame because it shows it as well,
 717         // so just remember that we should do it later in this case
 718         m_maximizeOnShow = maximize;
 719
 720         // after calling Maximize() the client code expects to get the frame
 721         // "real" size and doesn't want to know that, because of implementation
 722         // details, the frame isn't really maximized yet but will be only once
 723         // it's shown, so return our size as it will be then in this case
 724         if ( maximize )
 725         {
 726             // we must only change pending size here, and not call SetSize()
 727             // because otherwise Windows would think that this (full screen)
 728             // size is the natural size for the frame and so would use it when
 729             // the user clicks on "restore" title bar button instead of the
 730             // correct initial frame size
 731             //
 732             // NB: unfortunately we don't know which display we're on yet so we
 733             //     have to use the default one
 734             m_pendingSize = wxGetClientDisplayRect().GetSize();
 735         }
 736         //else: can't do anything in this case, we don't have the old size
 737     }
 738 }
 739
 740 bool wxTopLevelWindowMSW::IsMaximized() const
 741 {
 742     return IsAlwaysMaximized() ||
 743 #if !defined(__SMARTPHONE__) && !defined(__POCKETPC__)
 744            (::IsZoomed(GetHwnd()) != 0) ||
 745 #endif
 746            m_maximizeOnShow;
 747 }
 748
 749 void wxTopLevelWindowMSW::Iconize(bool iconize)
 750 {
 751     DoShowWindow(iconize ? SW_MINIMIZE : SW_RESTORE);
 752 }
 753
 754 bool wxTopLevelWindowMSW::IsIconized() const
 755 {
 756 #ifdef __WXWINCE__
 757     return false;
 758 #else
 759     // don't use m_iconized, it may be briefly out of sync with the real state
 760     // as it's only modified when we receive a WM_SIZE and we could be called
 761     // from an event handler from one of the messages we receive before it,
 762     // such as WM_MOVE
 763     return ::IsIconic(GetHwnd()) != 0;
 764 #endif
 765 }
 766
 767 void wxTopLevelWindowMSW::Restore()
 768 {
 769     DoShowWindow(SW_RESTORE);
 770 }
 771
 772 void wxTopLevelWindowMSW::SetLayoutDirection(wxLayoutDirection dir)
 773 {
 774     if ( dir == wxLayout_Default )
 775         dir = wxTheApp->GetLayoutDirection();
 776
 777     if ( dir != wxLayout_Default )
 778         wxTopLevelWindowBase::SetLayoutDirection(dir);
 779 }
 780
 781 // ----------------------------------------------------------------------------
 782 // wxTopLevelWindowMSW fullscreen
 783 // ----------------------------------------------------------------------------
 784
 785 bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 786 {
 787     if ( show == IsFullScreen() )
 788     {
 789         // nothing to do
 790         return true;
 791     }
 792
 793     m_fsIsShowing = show;
 794
 795     if ( show )
 796     {
 797         m_fsStyle = style;
 798
 799         // zap the frame borders
 800
 801         // save the 'normal' window style
 802         m_fsOldWindowStyle = GetWindowLong(GetHwnd(), GWL_STYLE);
 803
 804         // save the old position, width & height, maximize state
 805         m_fsOldSize = GetRect();
 806         m_fsIsMaximized = IsMaximized();
 807
 808         // decide which window style flags to turn off
 809         LONG newStyle = m_fsOldWindowStyle;
 810         LONG offFlags = 0;
 811
 812         if (style & wxFULLSCREEN_NOBORDER)
 813         {
 814             offFlags |= WS_BORDER;
 815 #ifndef __WXWINCE__
 816             offFlags |= WS_THICKFRAME;
 817 #endif
 818         }
 819         if (style & wxFULLSCREEN_NOCAPTION)
 820             offFlags |= WS_CAPTION | WS_SYSMENU;
 821
 822         newStyle &= ~offFlags;
 823
 824         // change our window style to be compatible with full-screen mode
 825         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);
 826
 827         wxRect rect;
 828 #if wxUSE_DISPLAY
 829         // resize to the size of the display containing us
 830         int dpy = wxDisplay::GetFromWindow(this);
 831         if ( dpy != wxNOT_FOUND )
 832         {
 833             rect = wxDisplay(dpy).GetGeometry();
 834         }
 835         else // fall back to the main desktop
 836 #endif // wxUSE_DISPLAY
 837         {
 838             // resize to the size of the desktop
 839             wxCopyRECTToRect(wxGetWindowRect(::GetDesktopWindow()), rect);
 840 #ifdef __WXWINCE__
 841             // FIXME: size of the bottom menu (toolbar)
 842             // should be taken in account
 843             rect.height += rect.y;
 844             rect.y       = 0;
 845 #endif
 846         }
 847
 848         SetSize(rect);
 849
 850         // now flush the window style cache and actually go full-screen
 851         long flags = SWP_FRAMECHANGED;
 852
 853         // showing the frame full screen should also show it if it's still
 854         // hidden
 855         if ( !IsShown() )
 856         {
 857             // don't call wxWindow version to avoid flicker from calling
 858             // ::ShowWindow() -- we're going to show the window at the correct
 859             // location directly below -- but do call the wxWindowBase version
 860             // to sync the internal m_isShown flag
 861             wxWindowBase::Show();
 862
 863             flags |= SWP_SHOWWINDOW;
 864         }
 865
 866         SetWindowPos(GetHwnd(), HWND_TOP,
 867                      rect.x, rect.y, rect.width, rect.height,
 868                      flags);
 869
 870 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
 871         ::SHFullScreen(GetHwnd(), SHFS_HIDETASKBAR | SHFS_HIDESIPBUTTON);
 872 #endif
 873
 874         // finally send an event allowing the window to relayout itself &c
 875         wxSizeEvent event(rect.GetSize(), GetId());
 876         GetEventHandler()->ProcessEvent(event);
 877     }
 878     else // stop showing full screen
 879     {
 880 #if !defined(__HANDHELDPC__) && (defined(__WXWINCE__) && (_WIN32_WCE < 400))
 881         ::SHFullScreen(GetHwnd(), SHFS_SHOWTASKBAR | SHFS_SHOWSIPBUTTON);
 882 #endif
 883         Maximize(m_fsIsMaximized);
 884         SetWindowLong(GetHwnd(),GWL_STYLE, m_fsOldWindowStyle);
 885         SetWindowPos(GetHwnd(),HWND_TOP,m_fsOldSize.x, m_fsOldSize.y,
 886             m_fsOldSize.width, m_fsOldSize.height, SWP_FRAMECHANGED);
 887     }
 888
 889     return true;
 890 }
 891
 892 // ----------------------------------------------------------------------------
 893 // wxTopLevelWindowMSW misc
 894 // ----------------------------------------------------------------------------
 895
 896 void wxTopLevelWindowMSW::SetTitle( const wxString& title)
 897 {
 898     SetLabel(title);
 899 }
 900
 901 wxString wxTopLevelWindowMSW::GetTitle() const
 902 {
 903     return GetLabel();
 904 }
 905
 906 void wxTopLevelWindowMSW::SetIcon(const wxIcon& icon)
 907 {
 908     SetIcons( wxIconBundle( icon ) );
 909 }
 910
 911 void wxTopLevelWindowMSW::SetIcons(const wxIconBundle& icons)
 912 {
 913     wxTopLevelWindowBase::SetIcons(icons);
 914
 915 #if !defined(__WXMICROWIN__)
 916     const wxIcon& sml = icons.GetIcon( wxSize( 16, 16 ) );
 917     if( sml.Ok() && sml.GetWidth() == 16 && sml.GetHeight() == 16 )
 918     {
 919         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_SMALL,
 920                        (LPARAM)GetHiconOf(sml) );
 921     }
 922
 923     const wxIcon& big = icons.GetIcon( wxSize( 32, 32 ) );
 924     if( big.Ok() && big.GetWidth() == 32 && big.GetHeight() == 32 )
 925     {
 926         ::SendMessage( GetHwndOf( this ), WM_SETICON, ICON_BIG,
 927                        (LPARAM)GetHiconOf(big) );
 928     }
 929 #endif // !__WXMICROWIN__
 930 }
 931
 932 bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
 933 {
 934 #if !defined(__WXMICROWIN__)
 935     // get system (a.k.a. window) menu
 936     HMENU hmenu = GetSystemMenu(GetHwnd(), FALSE /* get it */);
 937     if ( !hmenu )
 938     {
 939         // no system menu at all -- ok if we want to remove the close button
 940         // anyhow, but bad if we want to show it
 941         return !enable;
 942     }
 943
 944     // enabling/disabling the close item from it also automatically
 945     // disables/enables the close title bar button
 946     if ( ::EnableMenuItem(hmenu, SC_CLOSE,
 947                           MF_BYCOMMAND |
 948                           (enable ? MF_ENABLED : MF_GRAYED)) == -1 )
 949     {
 950         wxLogLastError(_T("EnableMenuItem(SC_CLOSE)"));
 951
 952         return false;
 953     }
 954 #ifndef __WXWINCE__
 955     // update appearance immediately
 956     if ( !::DrawMenuBar(GetHwnd()) )
 957     {
 958         wxLogLastError(_T("DrawMenuBar"));
 959     }
 960 #endif
 961 #endif // !__WXMICROWIN__
 962
 963     return true;
 964 }
 965
 966 #ifndef __WXWINCE__
 967
 968 bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
 969 {
 970     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
 971                  _T("Shaped windows must be created with the wxFRAME_SHAPED style."));
 972
 973     // The empty region signifies that the shape should be removed from the
 974     // window.
 975     if ( region.IsEmpty() )
 976     {
 977         if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
 978         {
 979             wxLogLastError(_T("SetWindowRgn"));
 980             return false;
 981         }
 982         return true;
 983     }
 984
 985     // Windows takes ownership of the region, so
 986     // we'll have to make a copy of the region to give to it.
 987     DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
 988     RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
 989     ::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
 990     HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
 991     delete[] (char*) rgnData;
 992
 993     // SetWindowRgn expects the region to be in coordinants
 994     // relative to the window, not the client area.  Figure
 995     // out the offset, if any.
 996     RECT rect;
 997     DWORD dwStyle =   ::GetWindowLong(GetHwnd(), GWL_STYLE);
 998     DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
 999     ::GetClientRect(GetHwnd(), &rect);
1000     ::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
1001     ::OffsetRgn(hrgn, -rect.left, -rect.top);
1002
1003     // Now call the shape API with the new region.
1004     if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
1005     {
1006         wxLogLastError(_T("SetWindowRgn"));
1007         return false;
1008     }
1009     return true;
1010 }
1011
1012 #endif // !__WXWINCE__
1013
1014 void wxTopLevelWindowMSW::RequestUserAttention(int flags)
1015 {
1016     // check if we can use FlashWindowEx(): unfortunately a simple test for
1017     // FLASHW_STOP doesn't work because MSVC6 headers do #define it but don't
1018     // provide FlashWindowEx() declaration, so try to detect whether we have
1019     // real headers for WINVER 0x0500 by checking for existence of a symbol not
1020     // declated in MSVC6 header
1021 #if defined(FLASHW_STOP) && defined(VK_XBUTTON1)
1022     // available in the headers, check if it is supported by the system
1023     typedef BOOL (WINAPI *FlashWindowEx_t)(FLASHWINFO *pfwi);
1024     FlashWindowEx_t s_pfnFlashWindowEx = NULL;
1025     if ( !s_pfnFlashWindowEx )
1026     {
1027         wxDynamicLibrary dllUser32(_T("user32.dll"));
1028         s_pfnFlashWindowEx = (FlashWindowEx_t)
1029                                 dllUser32.GetSymbol(_T("FlashWindowEx"));
1030
1031         // we can safely unload user32.dll here, it's going to remain loaded as
1032         // long as the program is running anyhow
1033     }
1034
1035     if ( s_pfnFlashWindowEx )
1036     {
1037         WinStruct<FLASHWINFO> fwi;
1038         fwi.hwnd = GetHwnd();
1039         fwi.dwFlags = FLASHW_ALL;
1040         if ( flags & wxUSER_ATTENTION_INFO )
1041         {
1042             // just flash a few times
1043             fwi.uCount = 3;
1044         }
1045         else // wxUSER_ATTENTION_ERROR
1046         {
1047             // flash until the user notices it
1048             fwi.dwFlags |= FLASHW_TIMERNOFG;
1049         }
1050
1051         s_pfnFlashWindowEx(&fwi);
1052     }
1053     else // FlashWindowEx() not available
1054 #endif // FlashWindowEx() defined
1055     {
1056         wxUnusedVar(flags);
1057 #ifndef __WXWINCE__
1058         ::FlashWindow(GetHwnd(), TRUE);
1059 #endif // __WXWINCE__
1060     }
1061 }
1062
1063 // ---------------------------------------------------------------------------
1064
1065 bool wxTopLevelWindowMSW::SetTransparent(wxByte alpha)
1066 {
1067     typedef DWORD (WINAPI *PSETLAYEREDWINDOWATTR)(HWND, DWORD, BYTE, DWORD);
1068     static PSETLAYEREDWINDOWATTR pSetLayeredWindowAttributes = NULL;
1069
1070     if ( pSetLayeredWindowAttributes == NULL )
1071     {
1072         wxDynamicLibrary dllUser32(_T("user32.dll"));
1073         pSetLayeredWindowAttributes = (PSETLAYEREDWINDOWATTR)
1074             dllUser32.GetSymbol(wxT("SetLayeredWindowAttributes"));
1075     }
1076     if ( pSetLayeredWindowAttributes == NULL )
1077         return false;
1078
1079     LONG exstyle = GetWindowLong(GetHwnd(), GWL_EXSTYLE);
1080
1081     // if setting alpha to fully opaque then turn off the layered style
1082     if (alpha == 255)
1083     {
1084         SetWindowLong(GetHwnd(), GWL_EXSTYLE, exstyle & ~WS_EX_LAYERED);
1085         Refresh();
1086         return true;
1087     }
1088
1089     // Otherwise, set the layered style if needed and set the alpha value
1090     if ((exstyle & WS_EX_LAYERED) == 0 )
1091         SetWindowLong(GetHwnd(), GWL_EXSTYLE, exstyle | WS_EX_LAYERED);
1092
1093     return pSetLayeredWindowAttributes(GetHwnd(), 0, (BYTE)alpha, LWA_ALPHA) != 0;
1094 }
1095
1096 bool wxTopLevelWindowMSW::CanSetTransparent()
1097 {
1098     // The API is available on win2k and above
1099
1100     static int os_type = -1;
1101     static int ver_major = -1;
1102
1103     if (os_type == -1)
1104         os_type = ::wxGetOsVersion(&ver_major);
1105
1106     return (os_type == wxOS_WINDOWS_NT && ver_major >= 5);
1107 }
1108
1109 // ----------------------------------------------------------------------------
1110 // wxTopLevelWindow event handling
1111 // ----------------------------------------------------------------------------
1112
1113 // Default activation behaviour - set the focus for the first child
1114 // subwindow found.
1115 void wxTopLevelWindowMSW::OnActivate(wxActivateEvent& event)
1116 {
1117     if ( event.GetActive() )
1118     {
1119         // restore focus to the child which was last focused unless we already
1120         // have it
1121         wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), (int) m_hWnd);
1122
1123         wxWindow *winFocus = FindFocus();
1124         if ( !winFocus || wxGetTopLevelParent(winFocus) != this )
1125         {
1126             wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
1127                                                 : NULL;
1128             if ( !parent )
1129             {
1130                 parent = this;
1131             }
1132
1133             wxSetFocusToChild(parent, &m_winLastFocused);
1134         }
1135     }
1136     else // deactivating
1137     {
1138         // remember the last focused child if it is our child
1139         m_winLastFocused = FindFocus();
1140
1141         if ( m_winLastFocused )
1142         {
1143             // let it know that it doesn't have focus any more
1144             m_winLastFocused->HandleKillFocus((WXHWND)NULL);
1145
1146             // and don't remember it if it's a child from some other frame
1147             if ( wxGetTopLevelParent(m_winLastFocused) != this )
1148             {
1149                 m_winLastFocused = NULL;
1150             }
1151         }
1152
1153         wxLogTrace(_T("focus"),
1154                    _T("wxTLW %08x deactivated, last focused: %08x."),
1155                    (int) m_hWnd,
1156                    (int) (m_winLastFocused ? GetHwndOf(m_winLastFocused)
1157                                            : NULL));
1158
1159         event.Skip();
1160     }
1161 }
1162
1163 // the DialogProc for all wxWidgets dialogs
1164 LONG APIENTRY _EXPORT
1165 wxDlgProc(HWND hDlg,
1166           UINT message,
1167           WPARAM WXUNUSED(wParam),
1168           LPARAM WXUNUSED(lParam))
1169 {
1170     switch ( message )
1171     {
1172         case WM_INITDIALOG:
1173         {
1174             // under CE, add a "Ok" button in the dialog title bar and make it full
1175             // screen
1176             //
1177             // TODO: find the window for this HWND, and take into account
1178             // wxMAXIMIZE and wxCLOSE_BOX. For now, assume both are present.
1179             //
1180             // Standard SDK doesn't have aygshell.dll: see
1181             // include/wx/msw/wince/libraries.h
1182 #if defined(__WXWINCE__) && !defined(__WINCE_STANDARDSDK__) && !defined(__HANDHELDPC__)
1183             SHINITDLGINFO shidi;
1184             shidi.dwMask = SHIDIM_FLAGS;
1185             shidi.dwFlags = SHIDIF_SIZEDLG // take account of the SIP or menubar
1186 #ifndef __SMARTPHONE__
1187                             | SHIDIF_DONEBUTTON
1188 #endif
1189                         ;
1190             shidi.hDlg = hDlg;
1191             SHInitDialog( &shidi );
1192 #else // no SHInitDialog()
1193             wxUnusedVar(hDlg);
1194 #endif
1195             // for WM_INITDIALOG, returning TRUE tells system to set focus to
1196             // the first control in the dialog box, but as we set the focus
1197             // ourselves, we return FALSE for it as well
1198             return FALSE;
1199         }
1200     }
1201
1202     // for almost all messages, returning FALSE means that we didn't process
1203     // the message
1204     return FALSE;
1205 }
1206
1207 // ============================================================================
1208 // wxTLWHiddenParentModule implementation
1209 // ============================================================================
1210
1211 HWND wxTLWHiddenParentModule::ms_hwnd = NULL;
1212
1213 const wxChar *wxTLWHiddenParentModule::ms_className = NULL;
1214
1215 bool wxTLWHiddenParentModule::OnInit()
1216 {
1217     ms_hwnd = NULL;
1218     ms_className = NULL;
1219
1220     return true;
1221 }
1222
1223 void wxTLWHiddenParentModule::OnExit()
1224 {
1225     if ( ms_hwnd )
1226     {
1227         if ( !::DestroyWindow(ms_hwnd) )
1228         {
1229             wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
1230         }
1231
1232         ms_hwnd = NULL;
1233     }
1234
1235     if ( ms_className )
1236     {
1237         if ( !::UnregisterClass(ms_className, wxGetInstance()) )
1238         {
1239             wxLogLastError(_T("UnregisterClass(\"wxTLWHiddenParent\")"));
1240         }
1241
1242         ms_className = NULL;
1243     }
1244 }
1245
1246 /* static */
1247 HWND wxTLWHiddenParentModule::GetHWND()
1248 {
1249     if ( !ms_hwnd )
1250     {
1251         if ( !ms_className )
1252         {
1253             static const wxChar *HIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
1254
1255             WNDCLASS wndclass;
1256             wxZeroMemory(wndclass);
1257
1258             wndclass.lpfnWndProc   = DefWindowProc;
1259             wndclass.hInstance     = wxGetInstance();
1260             wndclass.lpszClassName = HIDDEN_PARENT_CLASS;
1261
1262             if ( !::RegisterClass(&wndclass) )
1263             {
1264                 wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
1265             }
1266             else
1267             {
1268                 ms_className = HIDDEN_PARENT_CLASS;
1269             }
1270         }
1271
1272         ms_hwnd = ::CreateWindow(ms_className, wxEmptyString, 0, 0, 0, 0, 0, NULL,
1273                                  (HMENU)NULL, wxGetInstance(), NULL);
1274         if ( !ms_hwnd )
1275         {
1276             wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
1277         }
1278     }
1279
1280     return ms_hwnd;
1281 }