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 #if wxUSE_MENUS_NATIVE
  67     extern wxMenu *wxCurrentPopupMenu;
  68 #endif // wxUSE_MENUS_NATIVE
  69
  70 // ----------------------------------------------------------------------------
  71 // event tables
  72 // ----------------------------------------------------------------------------
  73
  74 BEGIN_EVENT_TABLE(wxFrame, wxFrameBase)
  75     EVT_ACTIVATE(wxFrame::OnActivate)
  76     EVT_SYS_COLOUR_CHANGED(wxFrame::OnSysColourChanged)
  77 END_EVENT_TABLE()
  78
  79 IMPLEMENT_DYNAMIC_CLASS(wxFrame, wxTopLevelWindow)
  80
  81 // ============================================================================
  82 // implementation
  83 // ============================================================================
  84
  85 // ----------------------------------------------------------------------------
  86 // static class members
  87 // ----------------------------------------------------------------------------
  88
  89 #if wxUSE_STATUSBAR
  90     #if wxUSE_NATIVE_STATUSBAR
  91         bool wxFrame::m_useNativeStatusBar = TRUE;
  92     #else
  93         bool wxFrame::m_useNativeStatusBar = FALSE;
  94     #endif
  95 #endif // wxUSE_NATIVE_STATUSBAR
  96
  97 // ----------------------------------------------------------------------------
  98 // creation/destruction
  99 // ----------------------------------------------------------------------------
 100
 101 void wxFrame::Init()
 102 {
 103 #if wxUSE_TOOLTIPS
 104     m_hwndToolTip = 0;
 105 #endif
 106
 107     // Data to save/restore when calling ShowFullScreen
 108     m_fsStatusBarFields = 0;
 109     m_fsStatusBarHeight = 0;
 110     m_fsToolBarHeight = 0;
 111 //  m_fsMenu = 0;
 112
 113     m_wasMinimized = FALSE;
 114
 115     m_winLastFocused = (wxWindow *)NULL;
 116 }
 117
 118 bool wxFrame::Create(wxWindow *parent,
 119                      wxWindowID id,
 120                      const wxString& title,
 121                      const wxPoint& pos,
 122                      const wxSize& size,
 123                      long style,
 124                      const wxString& name)
 125 {
 126     if ( !wxTopLevelWindow::Create(parent, id, title, pos, size, style, name) )
 127         return FALSE;
 128
 129     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
 130
 131     wxModelessWindows.Append(this);
 132
 133     return TRUE;
 134 }
 135
 136 wxFrame::~wxFrame()
 137 {
 138     m_isBeingDeleted = TRUE;
 139
 140     DeleteAllBars();
 141 }
 142
 143 // ----------------------------------------------------------------------------
 144 // wxFrame client size calculations
 145 // ----------------------------------------------------------------------------
 146
 147 void wxFrame::DoSetClientSize(int width, int height)
 148 {
 149     // leave enough space for the status bar if we have (and show) it
 150 #if wxUSE_STATUSBAR
 151     wxStatusBar *statbar = GetStatusBar();
 152     if ( statbar && statbar->IsShown() )
 153     {
 154         height += statbar->GetSize().y;
 155     }
 156 #endif // wxUSE_STATUSBAR
 157
 158     // call GetClientAreaOrigin() to take the toolbar into account
 159     wxPoint pt = GetClientAreaOrigin();
 160     width += pt.x;
 161     height += pt.y;
 162
 163     wxTopLevelWindow::DoSetClientSize(width, height);
 164 }
 165
 166 // Get size *available for subwindows* i.e. excluding menu bar, toolbar etc.
 167 void wxFrame::DoGetClientSize(int *x, int *y) const
 168 {
 169     wxTopLevelWindow::DoGetClientSize(x, y);
 170
 171     // account for the possible toolbar
 172     wxPoint pt = GetClientAreaOrigin();
 173     if ( x )
 174         *x -= pt.x;
 175
 176     if ( y )
 177         *y -= pt.y;
 178
 179 #if wxUSE_STATUSBAR
 180     // adjust client area height to take the status bar into account
 181     if ( y )
 182     {
 183         wxStatusBar *statbar = GetStatusBar();
 184         if ( statbar && statbar->IsShown() )
 185         {
 186             *y -= statbar->GetClientSize().y;
 187         }
 188     }
 189 #endif // wxUSE_STATUSBAR
 190 }
 191
 192 // ----------------------------------------------------------------------------
 193 // wxFrame: various geometry-related functions
 194 // ----------------------------------------------------------------------------
 195
 196 void wxFrame::Raise()
 197 {
 198 #ifdef __WIN16__
 199     // no SetForegroundWindow() in Win16
 200     wxFrameBase::Raise();
 201 #else // Win32
 202     ::SetForegroundWindow(GetHwnd());
 203 #endif // Win16/32
 204 }
 205
 206 // generate an artificial resize event
 207 void wxFrame::SendSizeEvent()
 208 {
 209     if ( !m_iconized )
 210     {
 211         RECT r = wxGetWindowRect(GetHwnd());
 212
 213         (void)::PostMessage(GetHwnd(), WM_SIZE,
 214                             IsMaximized() ? SIZE_MAXIMIZED : SIZE_RESTORED,
 215                             MAKELPARAM(r.right - r.left, r.bottom - r.top));
 216     }
 217 }
 218
 219 #if wxUSE_STATUSBAR
 220 wxStatusBar *wxFrame::OnCreateStatusBar(int number,
 221                                         long style,
 222                                         wxWindowID id,
 223                                         const wxString& name)
 224 {
 225     wxStatusBar *statusBar = NULL;
 226
 227 #if wxUSE_NATIVE_STATUSBAR
 228     if ( !UsesNativeStatusBar() )
 229     {
 230         statusBar = (wxStatusBar *)new wxStatusBarGeneric(this, id, style);
 231     }
 232     else
 233 #endif
 234     {
 235         statusBar = new wxStatusBar(this, id, style, name);
 236     }
 237
 238     statusBar->SetFieldsCount(number);
 239
 240     return statusBar;
 241 }
 242
 243 void wxFrame::PositionStatusBar()
 244 {
 245     if ( !m_frameStatusBar || !m_frameStatusBar->IsShown() )
 246         return;
 247
 248     int w, h;
 249     GetClientSize(&w, &h);
 250     int sw, sh;
 251     m_frameStatusBar->GetSize(&sw, &sh);
 252
 253     // Since we wish the status bar to be directly under the client area,
 254     // we use the adjusted sizes without using wxSIZE_NO_ADJUSTMENTS.
 255     m_frameStatusBar->SetSize(0, h, w, sh);
 256 }
 257 #endif // wxUSE_STATUSBAR
 258
 259 #if wxUSE_MENUS_NATIVE
 260
 261 void wxFrame::AttachMenuBar(wxMenuBar *menubar)
 262 {
 263     wxFrameBase::AttachMenuBar(menubar);
 264
 265     if ( !menubar )
 266     {
 267         // actually remove the menu from the frame
 268         m_hMenu = (WXHMENU)0;
 269         InternalSetMenuBar();
 270     }
 271     else // set new non NULL menu bar
 272     {
 273         // Can set a menubar several times.
 274         if ( menubar->GetHMenu() )
 275         {
 276             m_hMenu = menubar->GetHMenu();
 277         }
 278         else // no HMENU yet
 279         {
 280             m_hMenu = menubar->Create();
 281
 282             if ( !m_hMenu )
 283             {
 284                 wxFAIL_MSG( _T("failed to create menu bar") );
 285                 return;
 286             }
 287         }
 288
 289         InternalSetMenuBar();
 290     }
 291 }
 292
 293 void wxFrame::InternalSetMenuBar()
 294 {
 295 #ifndef __WXMICROWIN__
 296     if ( !::SetMenu(GetHwnd(), (HMENU)m_hMenu) )
 297     {
 298         wxLogLastError(wxT("SetMenu"));
 299     }
 300 #endif
 301 }
 302
 303 #endif // wxUSE_MENUS_NATIVE
 304
 305 // Responds to colour changes, and passes event on to children.
 306 void wxFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
 307 {
 308     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
 309     Refresh();
 310
 311 #if wxUSE_STATUSBAR
 312     if ( m_frameStatusBar )
 313     {
 314         wxSysColourChangedEvent event2;
 315         event2.SetEventObject( m_frameStatusBar );
 316         m_frameStatusBar->GetEventHandler()->ProcessEvent(event2);
 317     }
 318 #endif // wxUSE_STATUSBAR
 319
 320     // Propagate the event to the non-top-level children
 321     wxWindow::OnSysColourChanged(event);
 322 }
 323
 324 // Pass TRUE to show full screen, FALSE to restore.
 325 bool wxFrame::ShowFullScreen(bool show, long style)
 326 {
 327     if ( IsFullScreen() == show )
 328         return FALSE;
 329
 330     if (show)
 331     {
 332 #if wxUSE_TOOLBAR
 333         wxToolBar *theToolBar = GetToolBar();
 334         if (theToolBar)
 335             theToolBar->GetSize(NULL, &m_fsToolBarHeight);
 336
 337         // zap the toolbar, menubar, and statusbar
 338
 339         if ((style & wxFULLSCREEN_NOTOOLBAR) && theToolBar)
 340         {
 341             theToolBar->SetSize(-1,0);
 342             theToolBar->Show(FALSE);
 343         }
 344 #endif // wxUSE_TOOLBAR
 345
 346 #ifndef __WXMICROWIN__
 347         if (style & wxFULLSCREEN_NOMENUBAR)
 348             SetMenu((HWND)GetHWND(), (HMENU) NULL);
 349 #endif
 350
 351 #if wxUSE_STATUSBAR
 352         wxStatusBar *theStatusBar = GetStatusBar();
 353         if (theStatusBar)
 354             theStatusBar->GetSize(NULL, &m_fsStatusBarHeight);
 355
 356         // Save the number of fields in the statusbar
 357         if ((style & wxFULLSCREEN_NOSTATUSBAR) && theStatusBar)
 358         {
 359             //m_fsStatusBarFields = theStatusBar->GetFieldsCount();
 360             //SetStatusBar((wxStatusBar*) NULL);
 361             //delete theStatusBar;
 362             theStatusBar->Show(FALSE);
 363         }
 364         else
 365             m_fsStatusBarFields = 0;
 366 #endif // wxUSE_STATUSBAR
 367     }
 368     else
 369     {
 370 #if wxUSE_TOOLBAR
 371         wxToolBar *theToolBar = GetToolBar();
 372
 373         // restore the toolbar, menubar, and statusbar
 374         if (theToolBar && (m_fsStyle & wxFULLSCREEN_NOTOOLBAR))
 375         {
 376             theToolBar->SetSize(-1, m_fsToolBarHeight);
 377             theToolBar->Show(TRUE);
 378         }
 379 #endif // wxUSE_TOOLBAR
 380
 381 #if wxUSE_STATUSBAR
 382         if ( m_fsStyle & wxFULLSCREEN_NOSTATUSBAR )
 383         {
 384             //CreateStatusBar(m_fsStatusBarFields);
 385             if (GetStatusBar())
 386             {
 387                 GetStatusBar()->Show(TRUE);
 388                 PositionStatusBar();
 389             }
 390         }
 391 #endif // wxUSE_STATUSBAR
 392
 393 #ifndef __WXMICROWIN__
 394         if ((m_fsStyle & wxFULLSCREEN_NOMENUBAR) && (m_hMenu != 0))
 395             SetMenu((HWND)GetHWND(), (HMENU)m_hMenu);
 396 #endif
 397     }
 398
 399     return wxFrameBase::ShowFullScreen(show, style);
 400 }
 401
 402 // Default activation behaviour - set the focus for the first child
 403 // subwindow found.
 404 void wxFrame::OnActivate(wxActivateEvent& event)
 405 {
 406     if ( event.GetActive() )
 407     {
 408         // restore focus to the child which was last focused
 409         wxLogTrace(_T("focus"), _T("wxFrame %08x activated."), m_hWnd);
 410
 411         wxWindow *parent = m_winLastFocused ? m_winLastFocused->GetParent()
 412                                             : NULL;
 413         if ( !parent )
 414         {
 415             parent = this;
 416         }
 417
 418         wxSetFocusToChild(parent, &m_winLastFocused);
 419     }
 420     else // deactivating
 421     {
 422         // remember the last focused child if it is our child
 423         m_winLastFocused = FindFocus();
 424
 425         // so we NULL it out if it's a child from some other frame
 426         wxWindow *win = m_winLastFocused;
 427         while ( win )
 428         {
 429             if ( win->IsTopLevel() )
 430             {
 431                 if ( win != this )
 432                 {
 433                     m_winLastFocused = NULL;
 434                 }
 435
 436                 break;
 437             }
 438
 439             win = win->GetParent();
 440         }
 441
 442         wxLogTrace(_T("focus"),
 443                    _T("wxFrame %08x deactivated, last focused: %08x."),
 444                    m_hWnd,
 445                    m_winLastFocused ? GetHwndOf(m_winLastFocused)
 446                                     : NULL);
 447
 448         event.Skip();
 449     }
 450 }
 451
 452 // ----------------------------------------------------------------------------
 453 // tool/status bar stuff
 454 // ----------------------------------------------------------------------------
 455
 456 #if wxUSE_TOOLBAR
 457
 458 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 459 {
 460     if ( wxFrameBase::CreateToolBar(style, id, name) )
 461     {
 462         PositionToolBar();
 463     }
 464
 465     return m_frameToolBar;
 466 }
 467
 468 void wxFrame::PositionToolBar()
 469 {
 470     wxToolBar *toolbar = GetToolBar();
 471     if ( toolbar && toolbar->IsShown() )
 472     {
 473         // don't call our (or even wxTopLevelWindow) version because we want
 474         // the real (full) client area size, not excluding the tool/status bar
 475         int width, height;
 476         wxWindow::DoGetClientSize(&width, &height);
 477
 478 #if wxUSE_STATUSBAR
 479         wxStatusBar *statbar = GetStatusBar();
 480         if ( statbar && statbar->IsShown() )
 481         {
 482             height -= statbar->GetClientSize().y;
 483         }
 484 #endif // wxUSE_STATUSBAR
 485
 486         int tw, th;
 487         toolbar->GetSize(&tw, &th);
 488
 489         if ( toolbar->GetWindowStyleFlag() & wxTB_VERTICAL )
 490         {
 491             th = height;
 492         }
 493         else
 494         {
 495             tw = width;
 496             if ( toolbar->GetWindowStyleFlag() & wxTB_FLAT )
 497                 th -= 3;
 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             const wxIcon& icon = GetIcon();
 606             HICON hIcon = icon.Ok() ? GetHiconOf(icon)
 607                                     : (HICON)GetDefaultIcon();
 608
 609             // Hold a pointer to the dc so long as the OnPaint() message
 610             // is being processed
 611             PAINTSTRUCT ps;
 612             HDC hdc = ::BeginPaint(GetHwnd(), &ps);
 613
 614             // Erase background before painting or we get white background
 615             MSWDefWindowProc(WM_ICONERASEBKGND, (WORD)(LONG)ps.hdc, 0L);
 616
 617             if ( hIcon )
 618             {
 619                 RECT rect;
 620                 ::GetClientRect(GetHwnd(), &rect);
 621
 622                 // FIXME: why hardcoded?
 623                 static const int icon_width = 32;
 624                 static const int icon_height = 32;
 625
 626                 int icon_x = (int)((rect.right - icon_width)/2);
 627                 int icon_y = (int)((rect.bottom - icon_height)/2);
 628
 629                 ::DrawIcon(hdc, icon_x, icon_y, hIcon);
 630             }
 631
 632             ::EndPaint(GetHwnd(), &ps);
 633
 634             return TRUE;
 635         }
 636         else
 637  #endif
 638         {
 639             return wxWindow::HandlePaint();
 640         }
 641     }
 642     else
 643     {
 644         // nothing to paint - processed
 645         return TRUE;
 646     }
 647 }
 648
 649 bool wxFrame::HandleSize(int x, int y, WXUINT id)
 650 {
 651     bool processed = FALSE;
 652 #ifndef __WXMICROWIN__
 653
 654     switch ( id )
 655     {
 656         case SIZENORMAL:
 657             // only do it it if we were iconized before, otherwise resizing the
 658             // parent frame has a curious side effect of bringing it under it's
 659             // children
 660             if ( !m_iconized )
 661                 break;
 662
 663             // restore all child frames too
 664             IconizeChildFrames(FALSE);
 665
 666             (void)SendIconizeEvent(FALSE);
 667
 668             // fall through
 669
 670         case SIZEFULLSCREEN:
 671             m_iconized = FALSE;
 672             break;
 673
 674         case SIZEICONIC:
 675             // iconize all child frames too
 676             IconizeChildFrames(TRUE);
 677
 678             (void)SendIconizeEvent();
 679
 680             m_iconized = TRUE;
 681             break;
 682     }
 683 #endif
 684
 685     if ( !m_iconized )
 686     {
 687 #if wxUSE_STATUSBAR
 688         PositionStatusBar();
 689 #endif // wxUSE_STATUSBAR
 690
 691 #if wxUSE_TOOLBAR
 692         PositionToolBar();
 693 #endif // wxUSE_TOOLBAR
 694
 695         processed = wxWindow::HandleSize(x, y, id);
 696     }
 697
 698     return processed;
 699 }
 700
 701 bool wxFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND control)
 702 {
 703     if ( control )
 704     {
 705         // In case it's e.g. a toolbar.
 706         wxWindow *win = wxFindWinFromHandle(control);
 707         if ( win )
 708             return win->MSWCommand(cmd, id);
 709     }
 710
 711     // handle here commands from menus and accelerators
 712     if ( cmd == 0 || cmd == 1 )
 713     {
 714 #if wxUSE_MENUS_NATIVE
 715         if ( wxCurrentPopupMenu )
 716         {
 717             wxMenu *popupMenu = wxCurrentPopupMenu;
 718             wxCurrentPopupMenu = NULL;
 719
 720             return popupMenu->MSWCommand(cmd, id);
 721         }
 722 #endif // wxUSE_MENUS_NATIVE
 723
 724         if ( ProcessCommand(id) )
 725         {
 726             return TRUE;
 727         }
 728     }
 729
 730     return FALSE;
 731 }
 732
 733 bool wxFrame::HandleMenuSelect(WXWORD nItem, WXWORD flags, WXHMENU hMenu)
 734 {
 735     int item;
 736     if ( flags == 0xFFFF && hMenu == 0 )
 737     {
 738         // menu was removed from screen
 739         item = -1;
 740     }
 741 #ifndef __WXMICROWIN__
 742     else if ( !(flags & MF_POPUP) && !(flags & MF_SEPARATOR) )
 743     {
 744         item = nItem;
 745     }
 746 #endif
 747     else
 748     {
 749 #if wxUSE_STATUSBAR
 750         // don't give hints for separators (doesn't make sense) nor for the
 751         // items opening popup menus (they don't have them anyhow) but do clear
 752         // the status line - otherwise, we would be left with the help message
 753         // for the previous item which doesn't apply any more
 754         wxStatusBar *statbar = GetStatusBar();
 755         if ( statbar )
 756         {
 757             statbar->SetStatusText(wxEmptyString);
 758         }
 759 #endif // wxUSE_STATUSBAR
 760
 761         return FALSE;
 762     }
 763
 764     wxMenuEvent event(wxEVT_MENU_HIGHLIGHT, item);
 765     event.SetEventObject(this);
 766
 767     return GetEventHandler()->ProcessEvent(event);
 768 }
 769
 770 bool wxFrame::HandleMenuLoop(const wxEventType& evtType, WXWORD isPopup)
 771 {
 772     // we don't have the menu id here, so we use the id to specify if the event
 773     // was from a popup menu or a normal one
 774     wxMenuEvent event(evtType, isPopup ? -1 : 0);
 775     event.SetEventObject(this);
 776
 777     return GetEventHandler()->ProcessEvent(event);
 778 }
 779
 780 // ---------------------------------------------------------------------------
 781 // the window proc for wxFrame
 782 // ---------------------------------------------------------------------------
 783
 784 long wxFrame::MSWWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
 785 {
 786     long rc = 0;
 787     bool processed = FALSE;
 788
 789     switch ( message )
 790     {
 791         case WM_CLOSE:
 792             // if we can't close, tell the system that we processed the
 793             // message - otherwise it would close us
 794             processed = !Close();
 795             break;
 796
 797         case WM_SIZE:
 798             processed = HandleSize(LOWORD(lParam), HIWORD(lParam), wParam);
 799             break;
 800
 801         case WM_COMMAND:
 802             {
 803                 WORD id, cmd;
 804                 WXHWND hwnd;
 805                 UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
 806                               &id, &hwnd, &cmd);
 807
 808                 processed = HandleCommand(id, cmd, (WXHWND)hwnd);
 809             }
 810             break;
 811
 812         case WM_PAINT:
 813             processed = HandlePaint();
 814             break;
 815
 816 #ifndef __WXMICROWIN__
 817         case WM_MENUSELECT:
 818             {
 819                 WXWORD item, flags;
 820                 WXHMENU hmenu;
 821                 UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
 822
 823                 processed = HandleMenuSelect(item, flags, hmenu);
 824             }
 825             break;
 826
 827 #ifndef __WIN16__
 828         case WM_ENTERMENULOOP:
 829             processed = HandleMenuLoop(wxEVT_MENU_OPEN, wParam);
 830             break;
 831
 832         case WM_EXITMENULOOP:
 833             processed = HandleMenuLoop(wxEVT_MENU_CLOSE, wParam);
 834             break;
 835 #endif // __WIN16__
 836
 837         case WM_QUERYDRAGICON:
 838             {
 839                 const wxIcon& icon = GetIcon();
 840                 HICON hIcon = icon.Ok() ? GetHiconOf(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