src/msw/frame.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/frame.cpp
   3 // Purpose:     wxFrame
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "frame.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/frame.h"
  33     #include "wx/app.h"
  34     #include "wx/menu.h"
  35     #include "wx/utils.h"
  36     #include "wx/dialog.h"
  37     #include "wx/settings.h"
  38     #include "wx/dcclient.h"
  39     #include "wx/mdi.h"
  40     #include "wx/panel.h"
  41 #endif // WX_PRECOMP
  42
  43 #include "wx/msw/private.h"
  44
  45 #if wxUSE_STATUSBAR
  46     #include "wx/statusbr.h"
  47     #include "wx/generic/statusbr.h"
  48 #endif // wxUSE_STATUSBAR
  49
  50 #if wxUSE_TOOLBAR
  51     #include "wx/toolbar.h"
  52 #endif // wxUSE_TOOLBAR
  53
  54 #include "wx/menuitem.h"
  55 #include "wx/log.h"
  56
  57 #ifdef __WXUNIVERSAL__
  58     #include "wx/univ/theme.h"
  59     #include "wx/univ/colschem.h"
  60 #endif // __WXUNIVERSAL__
  61
  62 // ----------------------------------------------------------------------------
  63 // globals
  64 // ----------------------------------------------------------------------------
  65
  66 extern const wxChar *wxFrameClassName;
  67
  68 #if wxUSE_MENUS_NATIVE
  69 extern wxMenu *wxCurrentPopupMenu;
  70 #endif // wxUSE_MENUS_NATIVE
  71
  72 // ----------------------------------------------------------------------------
  73 // event tables
  74 // ----------------------------------------------------------------------------
  75
  76 BEGIN_EVENT_TABLE(wxFrame, wxFrameBase)
  77     EVT_ACTIVATE(wxFrame::OnActivate)
  78     EVT_SYS_COLOUR_CHANGED(wxFrame::OnSysColourChanged)
  79 END_EVENT_TABLE()
  80
  81 IMPLEMENT_DYNAMIC_CLASS(wxFrame, wxTopLevelWindow)
  82
  83 // ============================================================================
  84 // implementation
  85 // ============================================================================
  86
  87 // ----------------------------------------------------------------------------
  88 // static class members
  89 // ----------------------------------------------------------------------------
  90
  91 #if wxUSE_STATUSBAR
  92     #if wxUSE_NATIVE_STATUSBAR
  93         bool wxFrame::m_useNativeStatusBar = TRUE;
  94     #else
  95         bool wxFrame::m_useNativeStatusBar = FALSE;
  96     #endif
  97 #endif // wxUSE_NATIVE_STATUSBAR
  98
  99 // ----------------------------------------------------------------------------
 100 // creation/destruction
 101 // ----------------------------------------------------------------------------
 102
 103 void wxFrame::Init()
 104 {
 105 #if wxUSE_TOOLTIPS
 106     m_hwndToolTip = 0;
 107 #endif
 108
 109     // Data to save/restore when calling ShowFullScreen
 110     m_fsStatusBarFields = 0;
 111     m_fsStatusBarHeight = 0;
 112     m_fsToolBarHeight = 0;
 113 //  m_fsMenu = 0;
 114
 115     m_wasMinimized = FALSE;
 116
 117     m_winLastFocused = (wxWindow *)NULL;
 118 }
 119
 120 bool wxFrame::Create(wxWindow *parent,
 121                      wxWindowID id,
 122                      const wxString& title,
 123                      const wxPoint& pos,
 124                      const wxSize& size,
 125                      long style,
 126                      const wxString& name)
 127 {
 128     if ( !wxTopLevelWindow::Create(parent, id, title, pos, size, style, name) )
 129         return FALSE;
 130
 131     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
 132
 133     wxModelessWindows.Append(this);
 134
 135     return TRUE;
 136 }
 137
 138 wxFrame::~wxFrame()
 139 {
 140     m_isBeingDeleted = TRUE;
 141
 142     DeleteAllBars();
 143 }
 144
 145 // ----------------------------------------------------------------------------
 146 // wxFrame client size calculations
 147 // ----------------------------------------------------------------------------
 148
 149 void wxFrame::DoSetClientSize(int width, int height)
 150 {
 151     // leave enough space for the status bar if we have (and show) it
 152 #if wxUSE_STATUSBAR
 153     wxStatusBar *statbar = GetStatusBar();
 154     if ( statbar && statbar->IsShown() )
 155     {
 156         height += statbar->GetSize().y;
 157     }
 158 #endif // wxUSE_STATUSBAR
 159
 160     // call GetClientAreaOrigin() to take the toolbar into account
 161     wxPoint pt = GetClientAreaOrigin();
 162     width += pt.x;
 163     height += pt.y;
 164
 165     wxTopLevelWindow::DoSetClientSize(width, height);
 166 }
 167
 168 // Get size *available for subwindows* i.e. excluding menu bar, toolbar etc.
 169 void wxFrame::DoGetClientSize(int *x, int *y) const
 170 {
 171     wxTopLevelWindow::DoGetClientSize(x, y);
 172
 173     // account for the possible toolbar
 174     wxPoint pt = GetClientAreaOrigin();
 175     if ( x )
 176         *x -= pt.x;
 177
 178     if ( y )
 179         *y -= pt.y;
 180
 181 #if wxUSE_STATUSBAR
 182     // adjust client area height to take the status bar into account
 183     if ( y )
 184     {
 185         wxStatusBar *statbar = GetStatusBar();
 186         if ( statbar && statbar->IsShown() )
 187         {
 188             *y -= statbar->GetClientSize().y;
 189         }
 190     }
 191 #endif // wxUSE_STATUSBAR
 192 }
 193
 194 // ----------------------------------------------------------------------------
 195 // wxFrame: various geometry-related functions
 196 // ----------------------------------------------------------------------------
 197
 198 void wxFrame::Raise()
 199 {
 200 #ifdef __WIN16__
 201     // no SetForegroundWindow() in Win16
 202     wxFrameBase::Raise();
 203 #else // Win32
 204     ::SetForegroundWindow(GetHwnd());
 205 #endif // Win16/32
 206 }
 207
 208 // generate an artificial resize event
 209 void wxFrame::SendSizeEvent()
 210 {
 211     if ( !m_iconized )
 212     {
 213         RECT r = wxGetWindowRect(GetHwnd());
 214
 215         (void)::PostMessage(GetHwnd(), WM_SIZE,
 216                             IsMaximized() ? SIZE_MAXIMIZED : SIZE_RESTORED,
 217                             MAKELPARAM(r.right - r.left, r.bottom - r.top));
 218     }
 219 }
 220
 221 #if wxUSE_STATUSBAR
 222 wxStatusBar *wxFrame::OnCreateStatusBar(int number,
 223                                         long style,
 224                                         wxWindowID id,
 225                                         const wxString& name)
 226 {
 227     wxStatusBar *statusBar = NULL;
 228
 229 #if wxUSE_NATIVE_STATUSBAR
 230     if ( !UsesNativeStatusBar() )
 231     {
 232         statusBar = (wxStatusBar *)new wxStatusBarGeneric(this, id, style);
 233     }
 234     else
 235 #endif
 236     {
 237         statusBar = new wxStatusBar(this, id, style, name);
 238     }
 239
 240     statusBar->SetFieldsCount(number);
 241
 242     return statusBar;
 243 }
 244
 245 void wxFrame::PositionStatusBar()
 246 {
 247     if ( !m_frameStatusBar || !m_frameStatusBar->IsShown() )
 248         return;
 249
 250     int w, h;
 251     GetClientSize(&w, &h);
 252     int sw, sh;
 253     m_frameStatusBar->GetSize(&sw, &sh);
 254
 255     // Since we wish the status bar to be directly under the client area,
 256     // we use the adjusted sizes without using wxSIZE_NO_ADJUSTMENTS.
 257     m_frameStatusBar->SetSize(0, h, w, sh);
 258 }
 259 #endif // wxUSE_STATUSBAR
 260
 261 #if wxUSE_MENUS_NATIVE
 262
 263 void wxFrame::AttachMenuBar(wxMenuBar *menubar)
 264 {
 265     wxFrameBase::AttachMenuBar(menubar);
 266
 267     if ( !menubar )
 268     {
 269         // actually remove the menu from the frame
 270         m_hMenu = (WXHMENU)0;
 271         InternalSetMenuBar();
 272     }
 273     else // set new non NULL menu bar
 274     {
 275         // Can set a menubar several times.
 276         if ( menubar->GetHMenu() )
 277         {
 278             m_hMenu = menubar->GetHMenu();
 279         }
 280         else // no HMENU yet
 281         {
 282             m_hMenu = menubar->Create();
 283
 284             if ( !m_hMenu )
 285             {
 286                 wxFAIL_MSG( _T("failed to create menu bar") );
 287                 return;
 288             }
 289         }
 290
 291         InternalSetMenuBar();
 292     }
 293 }
 294
 295 void wxFrame::InternalSetMenuBar()
 296 {
 297 #ifndef __WXMICROWIN__
 298     if ( !::SetMenu(GetHwnd(), (HMENU)m_hMenu) )
 299     {
 300         wxLogLastError(wxT("SetMenu"));
 301     }
 302 #endif
 303 }
 304
 305 #endif // wxUSE_MENUS_NATIVE
 306
 307 // Responds to colour changes, and passes event on to children.
 308 void wxFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
 309 {
 310     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
 311     Refresh();
 312
 313 #if wxUSE_STATUSBAR
 314     if ( m_frameStatusBar )
 315     {
 316         wxSysColourChangedEvent event2;
 317         event2.SetEventObject( m_frameStatusBar );
 318         m_frameStatusBar->GetEventHandler()->ProcessEvent(event2);
 319     }
 320 #endif // wxUSE_STATUSBAR
 321
 322     // Propagate the event to the non-top-level children
 323     wxWindow::OnSysColourChanged(event);
 324 }
 325
 326 // Pass TRUE to show full screen, FALSE to restore.
 327 bool wxFrame::ShowFullScreen(bool show, long style)
 328 {
 329     if ( IsFullScreen() == show )
 330         return FALSE;
 331
 332     if (show)
 333     {
 334 #if wxUSE_TOOLBAR
 335         wxToolBar *theToolBar = GetToolBar();
 336         if (theToolBar)
 337             theToolBar->GetSize(NULL, &m_fsToolBarHeight);
 338
 339         // zap the toolbar, menubar, and statusbar
 340
 341         if ((style & wxFULLSCREEN_NOTOOLBAR) && theToolBar)
 342         {
 343             theToolBar->SetSize(-1,0);
 344             theToolBar->Show(FALSE);
 345         }
 346 #endif // wxUSE_TOOLBAR
 347
 348 #ifndef __WXMICROWIN__
 349         if (style & wxFULLSCREEN_NOMENUBAR)
 350             SetMenu((HWND)GetHWND(), (HMENU) NULL);
 351 #endif
 352
 353 #if wxUSE_STATUSBAR
 354         wxStatusBar *theStatusBar = GetStatusBar();
 355         if (theStatusBar)
 356             theStatusBar->GetSize(NULL, &m_fsStatusBarHeight);
 357
 358         // Save the number of fields in the statusbar
 359         if ((style & wxFULLSCREEN_NOSTATUSBAR) && theStatusBar)
 360         {
 361             //m_fsStatusBarFields = theStatusBar->GetFieldsCount();
 362             //SetStatusBar((wxStatusBar*) NULL);
 363             //delete theStatusBar;
 364             theStatusBar->Show(FALSE);
 365         }
 366         else
 367             m_fsStatusBarFields = 0;
 368 #endif // wxUSE_STATUSBAR
 369     }
 370     else
 371     {
 372 #if wxUSE_TOOLBAR
 373         wxToolBar *theToolBar = GetToolBar();
 374
 375         // restore the toolbar, menubar, and statusbar
 376         if (theToolBar && (m_fsStyle & wxFULLSCREEN_NOTOOLBAR))
 377         {
 378             theToolBar->SetSize(-1, m_fsToolBarHeight);
 379             theToolBar->Show(TRUE);
 380         }
 381 #endif // wxUSE_TOOLBAR
 382
 383 #if wxUSE_STATUSBAR
 384         if ( m_fsStyle & wxFULLSCREEN_NOSTATUSBAR )
 385         {
 386             //CreateStatusBar(m_fsStatusBarFields);
 387             if (GetStatusBar())
 388             {
 389                 GetStatusBar()->Show(TRUE);
 390                 PositionStatusBar();
 391             }
 392         }
 393 #endif // wxUSE_STATUSBAR
 394
 395 #ifndef __WXMICROWIN__
 396         if ((m_fsStyle & wxFULLSCREEN_NOMENUBAR) && (m_hMenu != 0))
 397             SetMenu((HWND)GetHWND(), (HMENU)m_hMenu);
 398 #endif
 399     }
 400
 401     return wxFrameBase::ShowFullScreen(show, style);
 402 }
 403
 404 // Default activation behaviour - set the focus for the first child
 405 // subwindow found.
 406 void wxFrame::OnActivate(wxActivateEvent& event)
 407 {
 408     if ( event.GetActive() )
 409     {
 410         // restore focus to the child which was last focused
 411         wxLogTrace(_T("focus"), _T("wxFrame %08x activated."), m_hWnd);
 412
 413         wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 414                                             : NULL;
 415         if ( !parent )
 416         {
 417             parent = this;
 418         }
 419
 420         wxSetFocusToChild(parent, &m_winLastFocused);
 421     }
 422     else // deactivating
 423     {
 424         // remember the last focused child if it is our child
 425         m_winLastFocused = FindFocus();
 426
 427         // so we NULL it out if it's a child from some other frame
 428         wxWindow *win = m_winLastFocused;
 429         while ( win )
 430         {
 431             if ( win->IsTopLevel() )
 432             {
 433                 if ( win != this )
 434                 {
 435                     m_winLastFocused = NULL;
 436                 }
 437
 438                 break;
 439             }
 440
 441             win = win->GetParent();
 442         }
 443
 444         wxLogTrace(_T("focus"),
 445                    _T("wxFrame %08x deactivated, last focused: %08x."),
 446                    m_hWnd,
 447                    m_winLastFocused ? GetHwndOf(m_winLastFocused)
 448                                     : NULL);
 449
 450         event.Skip();
 451     }
 452 }
 453
 454 // ----------------------------------------------------------------------------
 455 // tool/status bar stuff
 456 // ----------------------------------------------------------------------------
 457
 458 #if wxUSE_TOOLBAR
 459
 460 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 461 {
 462     if ( wxFrameBase::CreateToolBar(style, id, name) )
 463     {
 464         PositionToolBar();
 465     }
 466
 467     return m_frameToolBar;
 468 }
 469
 470 void wxFrame::PositionToolBar()
 471 {
 472     wxToolBar *toolbar = GetToolBar();
 473     if ( toolbar && toolbar->IsShown() )
 474     {
 475         // don't call our (or even wxTopLevelWindow) version because we want
 476         // the real (full) client area size, not excluding the tool/status bar
 477         int width, height;
 478         wxWindow::DoGetClientSize(&width, &height);
 479
 480 #if wxUSE_STATUSBAR
 481         wxStatusBar *statbar = GetStatusBar();
 482         if ( statbar && statbar->IsShown() )
 483         {
 484             height -= statbar->GetClientSize().y;
 485         }
 486 #endif // wxUSE_STATUSBAR
 487
 488         int tw, th;
 489         toolbar->GetSize(&tw, &th);
 490
 491         if ( toolbar->GetWindowStyleFlag() & wxTB_VERTICAL )
 492         {
 493             th = height;
 494         }
 495         else
 496         {
 497             tw = width;
 498         }
 499
 500         // use the 'real' MSW position here, don't offset relativly to the
 501         // client area origin
 502         toolbar->SetSize(0, 0, tw, th, wxSIZE_NO_ADJUSTMENTS);
 503     }
 504 }
 505
 506 #endif // wxUSE_TOOLBAR
 507
 508 // ----------------------------------------------------------------------------
 509 // frame state (iconized/maximized/...)
 510 // ----------------------------------------------------------------------------
 511
 512 // propagate our state change to all child frames: this allows us to emulate X
 513 // Windows behaviour where child frames float independently of the parent one
 514 // on the desktop, but are iconized/restored with it
 515 void wxFrame::IconizeChildFrames(bool bIconize)
 516 {
 517     for ( wxWindowList::Node *node = GetChildren().GetFirst();
 518           node;
 519           node = node->GetNext() )
 520     {
 521         wxWindow *win = node->GetData();
 522
 523         // iconizing the frames with this style under Win95 shell puts them at
 524         // the bottom of the screen (as the MDI children) instead of making
 525         // them appear in the taskbar because they are, by virtue of this
 526         // style, not managed by the taskbar - instead leave Windows take care
 527         // of them
 528 #ifdef __WIN95__
 529         if ( win->GetWindowStyle() & wxFRAME_TOOL_WINDOW )
 530             continue;
 531 #endif // Win95
 532
 533         // the child MDI frames are a special case and should not be touched by
 534         // the parent frame - instead, they are managed by the user
 535         wxFrame *frame = wxDynamicCast(win, wxFrame);
 536         if ( frame
 537 #if wxUSE_MDI_ARCHITECTURE
 538                 && !wxDynamicCast(frame, wxMDIChildFrame)
 539 #endif // wxUSE_MDI_ARCHITECTURE
 540            )
 541         {
 542             // we don't want to restore the child frames which had been
 543             // iconized even before we were iconized, so save the child frame
 544             // status when iconizing the parent frame and check it when
 545             // restoring it
 546             if ( bIconize )
 547             {
 548                 // note that we shouldn't touch the hidden frames neither
 549                 // because iconizing/restoring them would show them as a side
 550                 // effect
 551                 frame->m_wasMinimized = frame->IsIconized() || !frame->IsShown();
 552             }
 553
 554             // this test works for both iconizing and restoring
 555             if ( !frame->m_wasMinimized )
 556                 frame->Iconize(bIconize);
 557         }
 558     }
 559 }
 560
 561 WXHICON wxFrame::GetDefaultIcon() const
 562 {
 563     return (WXHICON)(wxSTD_FRAME_ICON ? wxSTD_FRAME_ICON
 564                                       : wxDEFAULT_FRAME_ICON);
 565 }
 566
 567 // ===========================================================================
 568 // message processing
 569 // ===========================================================================
 570
 571 // ---------------------------------------------------------------------------
 572 // preprocessing
 573 // ---------------------------------------------------------------------------
 574
 575 bool wxFrame::MSWTranslateMessage(WXMSG* pMsg)
 576 {
 577     if ( wxWindow::MSWTranslateMessage(pMsg) )
 578         return TRUE;
 579
 580 #if wxUSE_MENUS && wxUSE_ACCEL && !defined(__WXUNIVERSAL__)
 581     // try the menu bar accels
 582     wxMenuBar *menuBar = GetMenuBar();
 583     if ( !menuBar )
 584         return FALSE;
 585
 586     const wxAcceleratorTable& acceleratorTable = menuBar->GetAccelTable();
 587     return acceleratorTable.Translate(this, pMsg);
 588 #else
 589     return FALSE;
 590 #endif // wxUSE_MENUS && wxUSE_ACCEL
 591 }
 592
 593 // ---------------------------------------------------------------------------
 594 // our private (non virtual) message handlers
 595 // ---------------------------------------------------------------------------
 596
 597 bool wxFrame::HandlePaint()
 598 {
 599     RECT rect;
 600     if ( GetUpdateRect(GetHwnd(), &rect, FALSE) )
 601     {
 602 #ifndef __WXMICROWIN__
 603         if ( m_iconized )
 604         {
 605             HICON hIcon = m_icon.Ok() ? GetHiconOf(m_icon)
 606                                       : (HICON)GetDefaultIcon();
 607
 608             // Hold a pointer to the dc so long as the OnPaint() message
 609             // is being processed
 610             PAINTSTRUCT ps;
 611             HDC hdc = ::BeginPaint(GetHwnd(), &ps);
 612
 613             // Erase background before painting or we get white background
 614             MSWDefWindowProc(WM_ICONERASEBKGND, (WORD)(LONG)ps.hdc, 0L);
 615
 616             if ( hIcon )
 617             {
 618                 RECT rect;
 619                 ::GetClientRect(GetHwnd(), &rect);
 620
 621                 // FIXME: why hardcoded?
 622                 static const int icon_width = 32;
 623                 static const int icon_height = 32;
 624
 625                 int icon_x = (int)((rect.right - icon_width)/2);
 626                 int icon_y = (int)((rect.bottom - icon_height)/2);
 627
 628                 ::DrawIcon(hdc, icon_x, icon_y, hIcon);
 629             }
 630
 631             ::EndPaint(GetHwnd(), &ps);
 632
 633             return TRUE;
 634         }
 635         else
 636  #endif
 637         {
 638             return wxWindow::HandlePaint();
 639         }
 640     }
 641     else
 642     {
 643         // nothing to paint - processed
 644         return TRUE;
 645     }
 646 }
 647
 648 bool wxFrame::HandleSize(int x, int y, WXUINT id)
 649 {
 650     bool processed = FALSE;
 651 #ifndef __WXMICROWIN__
 652
 653     switch ( id )
 654     {
 655         case SIZENORMAL:
 656             // only do it it if we were iconized before, otherwise resizing the
 657             // parent frame has a curious side effect of bringing it under it's
 658             // children
 659             if ( !m_iconized )
 660                 break;
 661
 662             // restore all child frames too
 663             IconizeChildFrames(FALSE);
 664
 665             (void)SendIconizeEvent(FALSE);
 666
 667             // fall through
 668
 669         case SIZEFULLSCREEN:
 670             m_iconized = FALSE;
 671             break;
 672
 673         case SIZEICONIC:
 674             // iconize all child frames too
 675             IconizeChildFrames(TRUE);
 676
 677             (void)SendIconizeEvent();
 678
 679             m_iconized = TRUE;
 680             break;
 681     }
 682 #endif
 683
 684     if ( !m_iconized )
 685     {
 686 #if wxUSE_STATUSBAR
 687         PositionStatusBar();
 688 #endif // wxUSE_STATUSBAR
 689
 690 #if wxUSE_TOOLBAR
 691         PositionToolBar();
 692 #endif // wxUSE_TOOLBAR
 693
 694         wxSizeEvent event(wxSize(x, y), m_windowId);
 695         event.SetEventObject( this );
 696         processed = GetEventHandler()->ProcessEvent(event);
 697     }
 698
 699     return processed;
 700 }
 701
 702 bool wxFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND control)
 703 {
 704     if ( control )
 705     {
 706         // In case it's e.g. a toolbar.
 707         wxWindow *win = wxFindWinFromHandle(control);
 708         if ( win )
 709             return win->MSWCommand(cmd, id);
 710     }
 711
 712     // handle here commands from menus and accelerators
 713     if ( cmd == 0 || cmd == 1 )
 714     {
 715 #if wxUSE_MENUS_NATIVE
 716         if ( wxCurrentPopupMenu )
 717         {
 718             wxMenu *popupMenu = wxCurrentPopupMenu;
 719             wxCurrentPopupMenu = NULL;
 720
 721             return popupMenu->MSWCommand(cmd, id);
 722         }
 723 #endif // wxUSE_MENUS_NATIVE
 724
 725         if ( ProcessCommand(id) )
 726         {
 727             return TRUE;
 728         }
 729     }
 730
 731     return FALSE;
 732 }
 733
 734 bool wxFrame::HandleMenuSelect(WXWORD nItem, WXWORD flags, WXHMENU hMenu)
 735 {
 736     int item;
 737     if ( flags == 0xFFFF && hMenu == 0 )
 738     {
 739         // menu was removed from screen
 740         item = -1;
 741     }
 742 #ifndef __WXMICROWIN__
 743     else if ( !(flags & MF_POPUP) && !(flags & MF_SEPARATOR) )
 744     {
 745         item = nItem;
 746     }
 747 #endif
 748     else
 749     {
 750 #if wxUSE_STATUSBAR
 751         // don't give hints for separators (doesn't make sense) nor for the
 752         // items opening popup menus (they don't have them anyhow) but do clear
 753         // the status line - otherwise, we would be left with the help message
 754         // for the previous item which doesn't apply any more
 755         wxStatusBar *statbar = GetStatusBar();
 756         if ( statbar )
 757         {
 758             statbar->SetStatusText(wxEmptyString);
 759         }
 760 #endif // wxUSE_STATUSBAR
 761
 762         return FALSE;
 763     }
 764
 765     wxMenuEvent event(wxEVT_MENU_HIGHLIGHT, item);
 766     event.SetEventObject(this);
 767
 768     return GetEventHandler()->ProcessEvent(event);
 769 }
 770
 771 bool wxFrame::HandleMenuLoop(const wxEventType& evtType, WXWORD isPopup)
 772 {
 773     // we don't have the menu id here, so we use the id to specify if the event
 774     // was from a popup menu or a normal one
 775     wxMenuEvent event(evtType, isPopup ? -1 : 0);
 776     event.SetEventObject(this);
 777
 778     return GetEventHandler()->ProcessEvent(event);
 779 }
 780
 781 // ---------------------------------------------------------------------------
 782 // the window proc for wxFrame
 783 // ---------------------------------------------------------------------------
 784
 785 long wxFrame::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
 786 {
 787     long rc = 0;
 788     bool processed = FALSE;
 789
 790     switch ( message )
 791     {
 792         case WM_CLOSE:
 793             // if we can't close, tell the system that we processed the
 794             // message - otherwise it would close us
 795             processed = !Close();
 796             break;
 797
 798         case WM_SIZE:
 799             processed = HandleSize(LOWORD(lParam), HIWORD(lParam), wParam);
 800             break;
 801
 802         case WM_COMMAND:
 803             {
 804                 WORD id, cmd;
 805                 WXHWND hwnd;
 806                 UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
 807                               &id, &hwnd, &cmd);
 808
 809                 processed = HandleCommand(id, cmd, (WXHWND)hwnd);
 810             }
 811             break;
 812
 813         case WM_PAINT:
 814             processed = HandlePaint();
 815             break;
 816
 817 #ifndef __WXMICROWIN__
 818         case WM_MENUSELECT:
 819             {
 820                 WXWORD item, flags;
 821                 WXHMENU hmenu;
 822                 UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
 823
 824                 processed = HandleMenuSelect(item, flags, hmenu);
 825             }
 826             break;
 827
 828 #ifndef __WIN16__
 829         case WM_ENTERMENULOOP:
 830             processed = HandleMenuLoop(wxEVT_MENU_OPEN, wParam);
 831             break;
 832
 833         case WM_EXITMENULOOP:
 834             processed = HandleMenuLoop(wxEVT_MENU_CLOSE, wParam);
 835             break;
 836 #endif // __WIN16__
 837
 838         case WM_QUERYDRAGICON:
 839             {
 840                 HICON hIcon = m_icon.Ok() ? GetHiconOf(m_icon)
 841                                           : (HICON)GetDefaultIcon();
 842                 rc = (long)hIcon;
 843                 processed = rc != 0;
 844             }
 845             break;
 846 #endif // !__WXMICROWIN__
 847     }
 848
 849     if ( !processed )
 850         rc = wxWindow::MSWWindowProc(message, wParam, lParam);
 851
 852     return rc;
 853 }
 854