src/msw/mdi.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/mdi.cpp
   3 // Purpose:     MDI classes for wxMSW
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ===========================================================================
  13 // declarations
  14 // ===========================================================================
  15
  16 // ---------------------------------------------------------------------------
  17 // headers
  18 // ---------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "mdi.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 #if wxUSE_MDI && !defined(__WXUNIVERSAL__)
  32
  33 #ifndef WX_PRECOMP
  34     #include "wx/setup.h"
  35     #include "wx/frame.h"
  36     #include "wx/menu.h"
  37     #include "wx/app.h"
  38     #include "wx/utils.h"
  39     #include "wx/dialog.h"
  40     #if wxUSE_STATUSBAR
  41         #include "wx/statusbr.h"
  42     #endif
  43     #include "wx/settings.h"
  44     #include "wx/intl.h"
  45     #include "wx/log.h"
  46 #endif
  47
  48 #include "wx/mdi.h"
  49 #include "wx/msw/private.h"
  50
  51 #if wxUSE_STATUSBAR && wxUSE_NATIVE_STATUSBAR
  52     #include "wx/msw/statbr95.h"
  53 #endif
  54
  55 #if wxUSE_TOOLBAR
  56     #include "wx/toolbar.h"
  57 #endif // wxUSE_TOOLBAR
  58
  59 #include <string.h>
  60
  61 // ---------------------------------------------------------------------------
  62 // global variables
  63 // ---------------------------------------------------------------------------
  64
  65 extern wxMenu *wxCurrentPopupMenu;
  66
  67 extern const wxChar *wxMDIFrameClassName;   // from app.cpp
  68 extern const wxChar *wxMDIChildFrameClassName;
  69 extern const wxChar *wxMDIChildFrameClassNameNoRedraw;
  70 extern void wxAssociateWinWithHandle(HWND hWnd, wxWindow *win);
  71 extern void wxRemoveHandleAssociation(wxWindow *win);
  72
  73 static HWND invalidHandle = 0;
  74
  75 // ---------------------------------------------------------------------------
  76 // constants
  77 // ---------------------------------------------------------------------------
  78
  79 static const int IDM_WINDOWTILE  = 4001;
  80 static const int IDM_WINDOWTILEHOR  = 4001;
  81 static const int IDM_WINDOWCASCADE = 4002;
  82 static const int IDM_WINDOWICONS = 4003;
  83 static const int IDM_WINDOWNEXT = 4004;
  84 static const int IDM_WINDOWTILEVERT = 4005;
  85 static const int IDM_WINDOWPREV = 4006;
  86
  87 // This range gives a maximum of 500 MDI children. Should be enough :-)
  88 static const int wxFIRST_MDI_CHILD = 4100;
  89 static const int wxLAST_MDI_CHILD = 4600;
  90
  91 // Status border dimensions
  92 static const int wxTHICK_LINE_BORDER = 3;
  93 static const int wxTHICK_LINE_WIDTH  = 1;
  94
  95 // ---------------------------------------------------------------------------
  96 // private functions
  97 // ---------------------------------------------------------------------------
  98
  99 // set the MDI menus (by sending the WM_MDISETMENU message) and update the menu
 100 // of the parent of win (which is supposed to be the MDI client window)
 101 static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow);
 102
 103 // insert the window menu (subMenu) into menu just before "Help" submenu or at
 104 // the very end if not found
 105 static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu);
 106
 107 // Remove the window menu
 108 static void RemoveWindowMenu(wxWindow *win, WXHMENU menu);
 109
 110 // is this an id of an MDI child?
 111 inline bool IsMdiCommandId(int id)
 112 {
 113     return (id >= wxFIRST_MDI_CHILD) && (id <= wxLAST_MDI_CHILD);
 114 }
 115
 116 // unpack the parameters of WM_MDIACTIVATE message
 117 static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam,
 118                               WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact);
 119
 120 // return the HMENU of the MDI menu
 121 static inline HMENU GetMDIWindowMenu(wxMDIParentFrame *frame)
 122 {
 123     wxMenu *menu = frame->GetWindowMenu();
 124     return menu ? GetHmenuOf(menu) : 0;
 125 }
 126
 127 // ===========================================================================
 128 // implementation
 129 // ===========================================================================
 130
 131 // ---------------------------------------------------------------------------
 132 // wxWin macros
 133 // ---------------------------------------------------------------------------
 134
 135 IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame, wxFrame)
 136 IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame, wxFrame)
 137 IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow, wxWindow)
 138
 139 BEGIN_EVENT_TABLE(wxMDIParentFrame, wxFrame)
 140     EVT_SIZE(wxMDIParentFrame::OnSize)
 141     EVT_SYS_COLOUR_CHANGED(wxMDIParentFrame::OnSysColourChanged)
 142 END_EVENT_TABLE()
 143
 144 BEGIN_EVENT_TABLE(wxMDIChildFrame, wxFrame)
 145     EVT_IDLE(wxMDIChildFrame::OnIdle)
 146 END_EVENT_TABLE()
 147
 148 BEGIN_EVENT_TABLE(wxMDIClientWindow, wxWindow)
 149     EVT_SCROLL(wxMDIClientWindow::OnScroll)
 150 END_EVENT_TABLE()
 151
 152 // ===========================================================================
 153 // wxMDIParentFrame: the frame which contains the client window which manages
 154 // the children
 155 // ===========================================================================
 156
 157 wxMDIParentFrame::wxMDIParentFrame()
 158 {
 159     m_clientWindow = NULL;
 160     m_currentChild = NULL;
 161     m_windowMenu = (wxMenu*) NULL;
 162     m_parentFrameActive = true;
 163 }
 164
 165 bool wxMDIParentFrame::Create(wxWindow *parent,
 166                               wxWindowID id,
 167                               const wxString& title,
 168                               const wxPoint& pos,
 169                               const wxSize& size,
 170                               long style,
 171                               const wxString& name)
 172 {
 173   m_clientWindow = NULL;
 174   m_currentChild = NULL;
 175
 176   // this style can be used to prevent a window from having the standard MDI
 177   // "Window" menu
 178   if ( style & wxFRAME_NO_WINDOW_MENU )
 179   {
 180       m_windowMenu = (wxMenu *)NULL;
 181   }
 182   else // normal case: we have the window menu, so construct it
 183   {
 184       m_windowMenu = new wxMenu;
 185
 186       m_windowMenu->Append(IDM_WINDOWCASCADE, _("&Cascade"));
 187       m_windowMenu->Append(IDM_WINDOWTILEHOR, _("Tile &Horizontally"));
 188       m_windowMenu->Append(IDM_WINDOWTILEVERT, _("Tile &Vertically"));
 189       m_windowMenu->AppendSeparator();
 190       m_windowMenu->Append(IDM_WINDOWICONS, _("&Arrange Icons"));
 191       m_windowMenu->Append(IDM_WINDOWNEXT, _("&Next"));
 192       m_windowMenu->Append(IDM_WINDOWPREV, _("&Previous"));
 193   }
 194
 195   m_parentFrameActive = true;
 196
 197   if (!parent)
 198     wxTopLevelWindows.Append(this);
 199
 200   SetName(name);
 201   m_windowStyle = style;
 202
 203   if ( parent )
 204       parent->AddChild(this);
 205
 206   if ( id > -1 )
 207     m_windowId = id;
 208   else
 209     m_windowId = NewControlId();
 210
 211   WXDWORD exflags;
 212   WXDWORD msflags = MSWGetCreateWindowFlags(&exflags);
 213   msflags &= ~WS_VSCROLL;
 214   msflags &= ~WS_HSCROLL;
 215
 216   if ( !wxWindow::MSWCreate(wxMDIFrameClassName,
 217                             title,
 218                             pos, size,
 219                             msflags,
 220                             exflags) )
 221   {
 222       return false;
 223   }
 224
 225   // unlike (almost?) all other windows, frames are created hidden
 226   m_isShown = false;
 227
 228   return true;
 229 }
 230
 231 wxMDIParentFrame::~wxMDIParentFrame()
 232 {
 233     // see comment in ~wxMDIChildFrame
 234 #if wxUSE_TOOLBAR
 235     m_frameToolBar = NULL;
 236 #endif
 237 #if wxUSE_STATUSBAR
 238     m_frameStatusBar = NULL;
 239 #endif // wxUSE_STATUSBAR
 240
 241     DestroyChildren();
 242
 243     if (m_windowMenu)
 244     {
 245         delete m_windowMenu;
 246         m_windowMenu = (wxMenu*) NULL;
 247     }
 248
 249     // the MDI frame menubar is not automatically deleted by Windows unlike for
 250     // the normal frames
 251     if ( m_hMenu )
 252     {
 253         ::DestroyMenu((HMENU)m_hMenu);
 254         m_hMenu = (WXHMENU)NULL;
 255     }
 256
 257     if ( m_clientWindow )
 258     {
 259         if ( m_clientWindow->MSWGetOldWndProc() )
 260             m_clientWindow->UnsubclassWin();
 261
 262         m_clientWindow->SetHWND(0);
 263         delete m_clientWindow;
 264     }
 265 }
 266
 267 #if wxUSE_MENUS_NATIVE
 268
 269 void wxMDIParentFrame::InternalSetMenuBar()
 270 {
 271     m_parentFrameActive = true;
 272
 273     InsertWindowMenu(GetClientWindow(), m_hMenu, GetMDIWindowMenu(this));
 274 }
 275
 276 #endif // wxUSE_MENUS_NATIVE
 277
 278 void wxMDIParentFrame::SetWindowMenu(wxMenu* menu)
 279 {
 280     if (m_windowMenu)
 281     {
 282         if (GetMenuBar())
 283         {
 284             // Remove old window menu
 285             RemoveWindowMenu(GetClientWindow(), m_hMenu);
 286         }
 287
 288         delete m_windowMenu;
 289         m_windowMenu = (wxMenu*) NULL;
 290     }
 291
 292     if (menu)
 293     {
 294         m_windowMenu = menu;
 295         if (GetMenuBar())
 296         {
 297             InsertWindowMenu(GetClientWindow(), m_hMenu,
 298                              GetHmenuOf(m_windowMenu));
 299         }
 300     }
 301 }
 302
 303 void wxMDIParentFrame::OnSize(wxSizeEvent&)
 304 {
 305     if ( GetClientWindow() )
 306     {
 307         int width, height;
 308         GetClientSize(&width, &height);
 309
 310         GetClientWindow()->SetSize(0, 0, width, height);
 311     }
 312 }
 313
 314 // Returns the active MDI child window
 315 wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const
 316 {
 317     HWND hWnd = (HWND)::SendMessage(GetWinHwnd(GetClientWindow()),
 318                                     WM_MDIGETACTIVE, 0, 0L);
 319     if ( hWnd == 0 )
 320         return NULL;
 321     else
 322         return (wxMDIChildFrame *)wxFindWinFromHandle((WXHWND) hWnd);
 323 }
 324
 325 // Create the client window class (don't Create the window, just return a new
 326 // class)
 327 wxMDIClientWindow *wxMDIParentFrame::OnCreateClient()
 328 {
 329     return new wxMDIClientWindow;
 330 }
 331
 332 // Responds to colour changes, and passes event on to children.
 333 void wxMDIParentFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
 334 {
 335     if ( m_clientWindow )
 336     {
 337         m_clientWindow->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
 338         m_clientWindow->Refresh();
 339     }
 340
 341     event.Skip();
 342 }
 343
 344 WXHICON wxMDIParentFrame::GetDefaultIcon() const
 345 {
 346     // we don't have any standard icons (any more)
 347     return (WXHICON)0;
 348 }
 349
 350 // ---------------------------------------------------------------------------
 351 // MDI operations
 352 // ---------------------------------------------------------------------------
 353
 354 void wxMDIParentFrame::Cascade()
 355 {
 356     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDICASCADE, 0, 0);
 357 }
 358
 359 // TODO: add a direction argument (hor/vert)
 360 void wxMDIParentFrame::Tile()
 361 {
 362     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDITILE, MDITILE_HORIZONTAL, 0);
 363 }
 364
 365 void wxMDIParentFrame::ArrangeIcons()
 366 {
 367     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDIICONARRANGE, 0, 0);
 368 }
 369
 370 void wxMDIParentFrame::ActivateNext()
 371 {
 372     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 0);
 373 }
 374
 375 void wxMDIParentFrame::ActivatePrevious()
 376 {
 377     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 1);
 378 }
 379
 380 // ---------------------------------------------------------------------------
 381 // the MDI parent frame window proc
 382 // ---------------------------------------------------------------------------
 383
 384 WXLRESULT wxMDIParentFrame::MSWWindowProc(WXUINT message,
 385                                      WXWPARAM wParam,
 386                                      WXLPARAM lParam)
 387 {
 388     WXLRESULT rc = 0;
 389     bool processed = false;
 390
 391     switch ( message )
 392     {
 393         case WM_ACTIVATE:
 394             {
 395                 WXWORD state, minimized;
 396                 WXHWND hwnd;
 397                 UnpackActivate(wParam, lParam, &state, &minimized, &hwnd);
 398
 399                 processed = HandleActivate(state, minimized != 0, hwnd);
 400             }
 401             break;
 402
 403         case WM_COMMAND:
 404             {
 405                 WXWORD id, cmd;
 406                 WXHWND hwnd;
 407                 UnpackCommand(wParam, lParam, &id, &hwnd, &cmd);
 408
 409                 (void)HandleCommand(id, cmd, hwnd);
 410
 411                 // even if the frame didn't process it, there is no need to try it
 412                 // once again (i.e. call wxFrame::HandleCommand()) - we just did it,
 413                 // so pretend we processed the message anyhow
 414                 processed = true;
 415             }
 416
 417             // always pass this message DefFrameProc(), otherwise MDI menu
 418             // commands (and sys commands - more surprisingly!) won't work
 419             MSWDefWindowProc(message, wParam, lParam);
 420             break;
 421
 422         case WM_CREATE:
 423             m_clientWindow = OnCreateClient();
 424             // Uses own style for client style
 425             if ( !m_clientWindow->CreateClient(this, GetWindowStyleFlag()) )
 426             {
 427                 wxLogMessage(_("Failed to create MDI parent frame."));
 428
 429                 rc = -1;
 430             }
 431
 432             processed = true;
 433             break;
 434
 435         case WM_ERASEBKGND:
 436             processed = true;
 437
 438             // we erase background ourselves
 439             rc = true;
 440             break;
 441
 442         case WM_MENUSELECT:
 443             {
 444                 WXWORD item, flags;
 445                 WXHMENU hmenu;
 446                 UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
 447
 448                 if ( m_parentFrameActive )
 449                 {
 450                     processed = HandleMenuSelect(item, flags, hmenu);
 451                 }
 452                 else if (m_currentChild)
 453                 {
 454                     processed = m_currentChild->
 455                         HandleMenuSelect(item, flags, hmenu);
 456                 }
 457             }
 458             break;
 459
 460         case WM_SIZE:
 461             // as we don't (usually) resize the MDI client to exactly fit the
 462             // client area (we put it below the toolbar, above statusbar &c),
 463             // we should not pass this one to DefFrameProc
 464             break;
 465     }
 466
 467     if ( !processed )
 468         rc = wxFrame::MSWWindowProc(message, wParam, lParam);
 469
 470     return rc;
 471 }
 472
 473 bool wxMDIParentFrame::HandleActivate(int state, bool minimized, WXHWND activate)
 474 {
 475     bool processed = false;
 476
 477     if ( wxWindow::HandleActivate(state, minimized, activate) )
 478     {
 479         // already processed
 480         processed = true;
 481     }
 482
 483     // If this window is an MDI parent, we must also send an OnActivate message
 484     // to the current child.
 485     if ( (m_currentChild != NULL) &&
 486          ((state == WA_ACTIVE) || (state == WA_CLICKACTIVE)) )
 487     {
 488         wxActivateEvent event(wxEVT_ACTIVATE, true, m_currentChild->GetId());
 489         event.SetEventObject( m_currentChild );
 490         if ( m_currentChild->GetEventHandler()->ProcessEvent(event) )
 491             processed = true;
 492     }
 493
 494     return processed;
 495 }
 496
 497 bool wxMDIParentFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd)
 498 {
 499     // In case it's e.g. a toolbar.
 500     if ( hwnd )
 501     {
 502         wxWindow *win = wxFindWinFromHandle(hwnd);
 503         if ( win )
 504             return win->MSWCommand(cmd, id);
 505     }
 506
 507     // is it one of standard MDI commands?
 508     WXWPARAM wParam = 0;
 509     WXLPARAM lParam = 0;
 510     int msg;
 511     switch ( id )
 512     {
 513         case IDM_WINDOWCASCADE:
 514             msg = WM_MDICASCADE;
 515             wParam = MDITILE_SKIPDISABLED;
 516             break;
 517
 518         case IDM_WINDOWTILEHOR:
 519             wParam |= MDITILE_HORIZONTAL;
 520             // fall through
 521
 522         case IDM_WINDOWTILEVERT:
 523             if ( !wParam )
 524                 wParam = MDITILE_VERTICAL;
 525             msg = WM_MDITILE;
 526             wParam |= MDITILE_SKIPDISABLED;
 527             break;
 528
 529         case IDM_WINDOWICONS:
 530             msg = WM_MDIICONARRANGE;
 531             break;
 532
 533         case IDM_WINDOWNEXT:
 534             msg = WM_MDINEXT;
 535             lParam = 0;         // next child
 536             break;
 537
 538         case IDM_WINDOWPREV:
 539             msg = WM_MDINEXT;
 540             lParam = 1;         // previous child
 541             break;
 542
 543         default:
 544             msg = 0;
 545     }
 546
 547     if ( msg )
 548     {
 549         ::SendMessage(GetWinHwnd(GetClientWindow()), msg, wParam, lParam);
 550
 551         return true;
 552     }
 553
 554     // FIXME VZ: what does this test do??
 555     if (id >= 0xF000)
 556     {
 557         return false; // Get WndProc to call default proc
 558     }
 559
 560     if ( IsMdiCommandId(id) )
 561     {
 562         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 563         while ( node )
 564         {
 565             wxWindow *child = node->GetData();
 566             if ( child->GetHWND() )
 567             {
 568                 long childId = wxGetWindowId(child->GetHWND());
 569                 if (childId == (long)id)
 570                 {
 571                     ::SendMessage( GetWinHwnd(GetClientWindow()),
 572                                    WM_MDIACTIVATE,
 573                                    (WPARAM)child->GetHWND(), 0);
 574                     return true;
 575                 }
 576             }
 577             node = node->GetNext();
 578         }
 579     }
 580     else if ( m_parentFrameActive )
 581     {
 582         return ProcessCommand(id);
 583     }
 584     else if ( m_currentChild )
 585     {
 586         return m_currentChild->HandleCommand(id, cmd, hwnd);
 587     }
 588     else
 589     {
 590         // this shouldn't happen because it means that our messages are being
 591         // lost (they're not sent to the parent frame nor to the children)
 592         wxFAIL_MSG(wxT("MDI parent frame is not active, yet there is no active MDI child?"));
 593     }
 594
 595     return false;
 596 }
 597
 598 WXLRESULT wxMDIParentFrame::MSWDefWindowProc(WXUINT message,
 599                                         WXWPARAM wParam,
 600                                         WXLPARAM lParam)
 601 {
 602     WXHWND clientWnd;
 603     if ( GetClientWindow() )
 604         clientWnd = GetClientWindow()->GetHWND();
 605     else
 606         clientWnd = 0;
 607
 608     return DefFrameProc(GetHwnd(), (HWND)clientWnd, message, wParam, lParam);
 609 }
 610
 611 bool wxMDIParentFrame::MSWTranslateMessage(WXMSG* msg)
 612 {
 613     MSG *pMsg = (MSG *)msg;
 614
 615     // first let the current child get it
 616     if ( m_currentChild && m_currentChild->GetHWND() &&
 617          m_currentChild->MSWTranslateMessage(msg) )
 618     {
 619         return true;
 620     }
 621
 622     // then try out accel table (will also check the menu accels)
 623     if ( wxFrame::MSWTranslateMessage(msg) )
 624     {
 625         return true;
 626     }
 627
 628     // finally, check for MDI specific built in accel keys
 629     if ( pMsg->message == WM_KEYDOWN || pMsg->message == WM_SYSKEYDOWN )
 630     {
 631         if ( ::TranslateMDISysAccel(GetWinHwnd(GetClientWindow()), pMsg))
 632             return true;
 633     }
 634
 635     return false;
 636 }
 637
 638 // ===========================================================================
 639 // wxMDIChildFrame
 640 // ===========================================================================
 641
 642 void wxMDIChildFrame::Init()
 643 {
 644     m_needsResize = true;
 645 }
 646
 647 bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
 648                              wxWindowID id,
 649                              const wxString& title,
 650                              const wxPoint& pos,
 651                              const wxSize& size,
 652                              long style,
 653                              const wxString& name)
 654 {
 655   SetName(name);
 656   wxWindowBase::Show(true); // MDI child frame starts off shown
 657
 658   if ( id > -1 )
 659     m_windowId = id;
 660   else
 661     m_windowId = (int)NewControlId();
 662
 663   if ( parent )
 664   {
 665       parent->AddChild(this);
 666   }
 667
 668   int x = pos.x;
 669   int y = pos.y;
 670   int width = size.x;
 671   int height = size.y;
 672
 673   MDICREATESTRUCT mcs;
 674
 675   mcs.szClass = style & wxFULL_REPAINT_ON_RESIZE
 676                     ? wxMDIChildFrameClassName
 677                     : wxMDIChildFrameClassNameNoRedraw;
 678   mcs.szTitle = title;
 679   mcs.hOwner = wxGetInstance();
 680   if (x > -1)
 681       mcs.x = x;
 682   else
 683       mcs.x = CW_USEDEFAULT;
 684
 685   if (y > -1)
 686       mcs.y = y;
 687   else
 688       mcs.y = CW_USEDEFAULT;
 689
 690   if (width > -1)
 691       mcs.cx = width;
 692   else
 693       mcs.cx = CW_USEDEFAULT;
 694
 695   if (height > -1)
 696       mcs.cy = height;
 697   else
 698       mcs.cy = CW_USEDEFAULT;
 699
 700   DWORD msflags = WS_OVERLAPPED | WS_CLIPCHILDREN | WS_VISIBLE ;
 701   if (style & wxMINIMIZE_BOX)
 702     msflags |= WS_MINIMIZEBOX;
 703   if (style & wxMAXIMIZE_BOX)
 704     msflags |= WS_MAXIMIZEBOX;
 705   if (style & wxTHICK_FRAME)
 706     msflags |= WS_THICKFRAME;
 707   if (style & wxSYSTEM_MENU)
 708     msflags |= WS_SYSMENU;
 709   if ((style & wxMINIMIZE) || (style & wxICONIZE))
 710     msflags |= WS_MINIMIZE;
 711   if (style & wxMAXIMIZE)
 712     msflags |= WS_MAXIMIZE;
 713   if (style & wxCAPTION)
 714     msflags |= WS_CAPTION;
 715
 716   mcs.style = msflags;
 717
 718   mcs.lParam = 0;
 719
 720   wxWindowCreationHook hook(this);
 721
 722   m_hWnd = (WXHWND)::SendMessage(GetWinHwnd(parent->GetClientWindow()),
 723                                  WM_MDICREATE, 0, (LONG)(LPSTR)&mcs);
 724
 725   wxAssociateWinWithHandle((HWND) GetHWND(), this);
 726
 727   return true;
 728 }
 729
 730 wxMDIChildFrame::~wxMDIChildFrame()
 731 {
 732     // will be destroyed by DestroyChildren() but reset them before calling it
 733     // to avoid using dangling pointers if a callback comes in the meanwhile
 734 #if wxUSE_TOOLBAR
 735     m_frameToolBar = NULL;
 736 #endif
 737 #if wxUSE_STATUSBAR
 738     m_frameStatusBar = NULL;
 739 #endif // wxUSE_STATUSBAR
 740
 741     DestroyChildren();
 742
 743     RemoveWindowMenu(NULL, m_hMenu);
 744
 745     MSWDestroyWindow();
 746 }
 747
 748 // Set the client size (i.e. leave the calculation of borders etc.
 749 // to wxWidgets)
 750 void wxMDIChildFrame::DoSetClientSize(int width, int height)
 751 {
 752   HWND hWnd = GetHwnd();
 753
 754   RECT rect;
 755   ::GetClientRect(hWnd, &rect);
 756
 757   RECT rect2;
 758   GetWindowRect(hWnd, &rect2);
 759
 760   // Find the difference between the entire window (title bar and all)
 761   // and the client area; add this to the new client size to move the
 762   // window
 763   int actual_width = rect2.right - rect2.left - rect.right + width;
 764   int actual_height = rect2.bottom - rect2.top - rect.bottom + height;
 765
 766 #if wxUSE_STATUSBAR
 767   if (GetStatusBar() && GetStatusBar()->IsShown())
 768   {
 769     int sx, sy;
 770     GetStatusBar()->GetSize(&sx, &sy);
 771     actual_height += sy;
 772   }
 773 #endif // wxUSE_STATUSBAR
 774
 775   POINT point;
 776   point.x = rect2.left;
 777   point.y = rect2.top;
 778
 779   // If there's an MDI parent, must subtract the parent's top left corner
 780   // since MoveWindow moves relative to the parent
 781   wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent();
 782   ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
 783
 784   MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)true);
 785
 786   wxSizeEvent event(wxSize(width, height), m_windowId);
 787   event.SetEventObject( this );
 788   GetEventHandler()->ProcessEvent(event);
 789 }
 790
 791 void wxMDIChildFrame::DoGetPosition(int *x, int *y) const
 792 {
 793   RECT rect;
 794   GetWindowRect(GetHwnd(), &rect);
 795   POINT point;
 796   point.x = rect.left;
 797   point.y = rect.top;
 798
 799   // Since we now have the absolute screen coords,
 800   // if there's a parent we must subtract its top left corner
 801   wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent();
 802   ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
 803
 804   *x = point.x;
 805   *y = point.y;
 806 }
 807
 808 void wxMDIChildFrame::InternalSetMenuBar()
 809 {
 810     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 811
 812     InsertWindowMenu(parent->GetClientWindow(),
 813                      m_hMenu, GetMDIWindowMenu(parent));
 814
 815     parent->m_parentFrameActive = false;
 816 }
 817
 818 WXHICON wxMDIChildFrame::GetDefaultIcon() const
 819 {
 820     // we don't have any standard icons (any more)
 821     return (WXHICON)0;
 822 }
 823
 824 // ---------------------------------------------------------------------------
 825 // MDI operations
 826 // ---------------------------------------------------------------------------
 827
 828 void wxMDIChildFrame::Maximize(bool maximize)
 829 {
 830     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 831     if ( parent && parent->GetClientWindow() )
 832     {
 833         ::SendMessage(GetWinHwnd(parent->GetClientWindow()),
 834                       maximize ? WM_MDIMAXIMIZE : WM_MDIRESTORE,
 835                       (WPARAM)GetHwnd(), 0);
 836     }
 837 }
 838
 839 void wxMDIChildFrame::Restore()
 840 {
 841     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 842     if ( parent && parent->GetClientWindow() )
 843     {
 844         ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIRESTORE,
 845                       (WPARAM) GetHwnd(), 0);
 846     }
 847 }
 848
 849 void wxMDIChildFrame::Activate()
 850 {
 851     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 852     if ( parent && parent->GetClientWindow() )
 853     {
 854         ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIACTIVATE,
 855                       (WPARAM) GetHwnd(), 0);
 856     }
 857 }
 858
 859 // ---------------------------------------------------------------------------
 860 // MDI window proc and message handlers
 861 // ---------------------------------------------------------------------------
 862
 863 WXLRESULT wxMDIChildFrame::MSWWindowProc(WXUINT message,
 864                                     WXWPARAM wParam,
 865                                     WXLPARAM lParam)
 866 {
 867     WXLRESULT rc = 0;
 868     bool processed = false;
 869
 870     switch ( message )
 871     {
 872         case WM_COMMAND:
 873             {
 874                 WORD id, cmd;
 875                 WXHWND hwnd;
 876                 UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
 877                               &id, &hwnd, &cmd);
 878
 879                 processed = HandleCommand(id, cmd, (WXHWND)hwnd);
 880             }
 881             break;
 882
 883         case WM_GETMINMAXINFO:
 884             processed = HandleGetMinMaxInfo((MINMAXINFO *)lParam);
 885             break;
 886
 887         case WM_MDIACTIVATE:
 888             {
 889                 WXWORD act;
 890                 WXHWND hwndAct, hwndDeact;
 891                 UnpackMDIActivate(wParam, lParam, &act, &hwndAct, &hwndDeact);
 892
 893                 processed = HandleMDIActivate(act, hwndAct, hwndDeact);
 894             }
 895             // fall through
 896
 897         case WM_MOVE:
 898             // must pass WM_MOVE to DefMDIChildProc() to recalculate MDI client
 899             // scrollbars if necessary
 900
 901             // fall through
 902
 903         case WM_SIZE:
 904             // must pass WM_SIZE to DefMDIChildProc(), otherwise many weird
 905             // things happen
 906             MSWDefWindowProc(message, wParam, lParam);
 907             break;
 908
 909         case WM_SYSCOMMAND:
 910             // DefMDIChildProc handles SC_{NEXT/PREV}WINDOW here, so pass it
 911             // the message (the base class version does not)
 912             return MSWDefWindowProc(message, wParam, lParam);
 913
 914         case WM_WINDOWPOSCHANGING:
 915             processed = HandleWindowPosChanging((LPWINDOWPOS)lParam);
 916             break;
 917     }
 918
 919     if ( !processed )
 920         rc = wxFrame::MSWWindowProc(message, wParam, lParam);
 921
 922     return rc;
 923 }
 924
 925 bool wxMDIChildFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd)
 926 {
 927     // In case it's e.g. a toolbar.
 928     if ( hwnd )
 929     {
 930         wxWindow *win = wxFindWinFromHandle(hwnd);
 931         if (win)
 932             return win->MSWCommand(cmd, id);
 933     }
 934
 935     if (wxCurrentPopupMenu)
 936     {
 937         wxMenu *popupMenu = wxCurrentPopupMenu;
 938         wxCurrentPopupMenu = NULL;
 939         if (popupMenu->MSWCommand(cmd, id))
 940             return true;
 941     }
 942
 943     bool processed;
 944     if (GetMenuBar() && GetMenuBar()->FindItem(id))
 945     {
 946         processed = ProcessCommand(id);
 947     }
 948     else
 949     {
 950         processed = false;
 951     }
 952
 953     return processed;
 954 }
 955
 956 bool wxMDIChildFrame::HandleMDIActivate(long WXUNUSED(activate),
 957                                         WXHWND hwndAct,
 958                                         WXHWND hwndDeact)
 959 {
 960     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 961
 962     HMENU menuToSet = 0;
 963
 964     bool activated;
 965
 966     if ( m_hWnd == hwndAct )
 967     {
 968         activated = true;
 969         parent->m_currentChild = this;
 970
 971         HMENU child_menu = (HMENU)GetWinMenu();
 972         if ( child_menu )
 973         {
 974             parent->m_parentFrameActive = false;
 975
 976             menuToSet = child_menu;
 977         }
 978     }
 979     else if ( m_hWnd == hwndDeact )
 980     {
 981         wxASSERT_MSG( parent->m_currentChild == this,
 982                       wxT("can't deactivate MDI child which wasn't active!") );
 983
 984         activated = false;
 985         parent->m_currentChild = NULL;
 986
 987         HMENU parent_menu = (HMENU)parent->GetWinMenu();
 988
 989         // activate the the parent menu only when there is no other child
 990         // that has been activated
 991         if ( parent_menu && !hwndAct )
 992         {
 993             parent->m_parentFrameActive = true;
 994
 995             menuToSet = parent_menu;
 996         }
 997     }
 998     else
 999     {
1000         // we have nothing to do with it
1001         return false;
1002     }
1003
1004     if ( menuToSet )
1005     {
1006         MDISetMenu(parent->GetClientWindow(),
1007                    menuToSet, GetMDIWindowMenu(parent));
1008     }
1009
1010     wxActivateEvent event(wxEVT_ACTIVATE, activated, m_windowId);
1011     event.SetEventObject( this );
1012
1013     ResetWindowStyle((void *)NULL);
1014
1015     return GetEventHandler()->ProcessEvent(event);
1016 }
1017
1018 bool wxMDIChildFrame::HandleWindowPosChanging(void *pos)
1019 {
1020     WINDOWPOS *lpPos = (WINDOWPOS *)pos;
1021 #if defined(__WIN95__)
1022     if (!(lpPos->flags & SWP_NOSIZE))
1023     {
1024         RECT rectClient;
1025         DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
1026         DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
1027         if (ResetWindowStyle((void *) & rectClient) && (dwStyle & WS_MAXIMIZE))
1028         {
1029             ::AdjustWindowRectEx(&rectClient, dwStyle, false, dwExStyle);
1030             lpPos->x = rectClient.left;
1031             lpPos->y = rectClient.top;
1032             lpPos->cx = rectClient.right - rectClient.left;
1033             lpPos->cy = rectClient.bottom - rectClient.top;
1034         }
1035 #if wxUSE_TOOLBAR
1036         wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent();
1037         if (pFrameWnd && pFrameWnd->GetToolBar() && pFrameWnd->GetToolBar()->IsShown())
1038         {
1039             pFrameWnd->GetToolBar()->Refresh();
1040         }
1041 #endif
1042     }
1043 #endif // Win95
1044
1045     return false;
1046 }
1047
1048 bool wxMDIChildFrame::HandleGetMinMaxInfo(void *mmInfo)
1049 {
1050     MINMAXINFO *info = (MINMAXINFO *)mmInfo;
1051
1052     // let the default window proc calculate the size of MDI children
1053     // frames because it is based on the size of the MDI client window,
1054     // not on the values specified in wxWindow m_max variables
1055     bool processed = MSWDefWindowProc(WM_GETMINMAXINFO, 0, (LPARAM)mmInfo) != 0;
1056
1057     int minWidth = GetMinWidth(),
1058         minHeight = GetMinHeight();
1059
1060     // but allow GetSizeHints() to set the min size
1061     if ( minWidth != -1 )
1062     {
1063         info->ptMinTrackSize.x = minWidth;
1064
1065         processed = true;
1066     }
1067
1068     if ( minHeight != -1 )
1069     {
1070         info->ptMinTrackSize.y = minHeight;
1071
1072         processed = true;
1073     }
1074
1075     return processed;
1076 }
1077
1078 // ---------------------------------------------------------------------------
1079 // MDI specific message translation/preprocessing
1080 // ---------------------------------------------------------------------------
1081
1082 WXLRESULT wxMDIChildFrame::MSWDefWindowProc(WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
1083 {
1084     return DefMDIChildProc(GetHwnd(),
1085                            (UINT)message, (WPARAM)wParam, (LPARAM)lParam);
1086 }
1087
1088 bool wxMDIChildFrame::MSWTranslateMessage(WXMSG* msg)
1089 {
1090     return wxFrame::MSWTranslateMessage(msg);
1091 }
1092
1093 // ---------------------------------------------------------------------------
1094 // misc
1095 // ---------------------------------------------------------------------------
1096
1097 void wxMDIChildFrame::MSWDestroyWindow()
1098 {
1099     invalidHandle = GetHwnd();
1100
1101     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
1102
1103     // Must make sure this handle is invalidated (set to NULL) since all sorts
1104     // of things could happen after the child client is destroyed, but before
1105     // the wxFrame is destroyed.
1106
1107     HWND oldHandle = (HWND)GetHWND();
1108     SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIDESTROY,
1109                 (WPARAM)oldHandle, 0);
1110
1111     if (parent->GetActiveChild() == (wxMDIChildFrame*) NULL)
1112         ResetWindowStyle((void*) NULL);
1113
1114     invalidHandle = 0;
1115
1116     if (m_hMenu)
1117     {
1118         ::DestroyMenu((HMENU) m_hMenu);
1119         m_hMenu = 0;
1120     }
1121     wxRemoveHandleAssociation(this);
1122     m_hWnd = 0;
1123 }
1124
1125 // Change the client window's extended style so we don't get a client edge
1126 // style when a child is maximised (a double border looks silly.)
1127 bool wxMDIChildFrame::ResetWindowStyle(void *vrect)
1128 {
1129 #if defined(__WIN95__)
1130     RECT *rect = (RECT *)vrect;
1131     wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent();
1132     wxMDIChildFrame* pChild = pFrameWnd->GetActiveChild();
1133     if (!pChild || (pChild == this))
1134     {
1135         HWND hwndClient = GetWinHwnd(pFrameWnd->GetClientWindow());
1136         DWORD dwStyle = ::GetWindowLong(hwndClient, GWL_EXSTYLE);
1137
1138         // we want to test whether there is a maximized child, so just set
1139         // dwThisStyle to 0 if there is no child at all
1140         DWORD dwThisStyle = pChild
1141             ? ::GetWindowLong(GetWinHwnd(pChild), GWL_STYLE) : 0;
1142         DWORD dwNewStyle = dwStyle;
1143         if ( dwThisStyle & WS_MAXIMIZE )
1144             dwNewStyle &= ~(WS_EX_CLIENTEDGE);
1145         else
1146             dwNewStyle |= WS_EX_CLIENTEDGE;
1147
1148         if (dwStyle != dwNewStyle)
1149         {
1150             // force update of everything
1151             ::RedrawWindow(hwndClient, NULL, NULL,
1152                            RDW_INVALIDATE | RDW_ALLCHILDREN);
1153             ::SetWindowLong(hwndClient, GWL_EXSTYLE, dwNewStyle);
1154             ::SetWindowPos(hwndClient, NULL, 0, 0, 0, 0,
1155                            SWP_FRAMECHANGED | SWP_NOACTIVATE |
1156                            SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
1157                            SWP_NOCOPYBITS);
1158             if (rect)
1159                 ::GetClientRect(hwndClient, rect);
1160
1161             return true;
1162         }
1163     }
1164 #endif // Win95
1165
1166     return false;
1167 }
1168
1169 // ===========================================================================
1170 // wxMDIClientWindow: the window of predefined (by Windows) class which
1171 // contains the child frames
1172 // ===========================================================================
1173
1174 bool wxMDIClientWindow::CreateClient(wxMDIParentFrame *parent, long style)
1175 {
1176     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE);
1177
1178     CLIENTCREATESTRUCT ccs;
1179     m_windowStyle = style;
1180     m_parent = parent;
1181
1182     ccs.hWindowMenu = GetMDIWindowMenu(parent);
1183     ccs.idFirstChild = wxFIRST_MDI_CHILD;
1184
1185     DWORD msStyle = MDIS_ALLCHILDSTYLES | WS_VISIBLE | WS_CHILD |
1186                     WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
1187
1188     if ( style & wxHSCROLL )
1189         msStyle |= WS_HSCROLL;
1190     if ( style & wxVSCROLL )
1191         msStyle |= WS_VSCROLL;
1192
1193 #if defined(__WIN95__)
1194     DWORD exStyle = WS_EX_CLIENTEDGE;
1195 #else
1196     DWORD exStyle = 0;
1197 #endif
1198
1199     wxWindowCreationHook hook(this);
1200     m_hWnd = (WXHWND)::CreateWindowEx
1201                        (
1202                         exStyle,
1203                         wxT("MDICLIENT"),
1204                         NULL,
1205                         msStyle,
1206                         0, 0, 0, 0,
1207                         GetWinHwnd(parent),
1208                         NULL,
1209                         wxGetInstance(),
1210                         (LPSTR)(LPCLIENTCREATESTRUCT)&ccs);
1211     if ( !m_hWnd )
1212     {
1213         wxLogLastError(wxT("CreateWindowEx(MDI client)"));
1214
1215         return false;
1216     }
1217
1218     SubclassWin(m_hWnd);
1219
1220     return true;
1221 }
1222
1223 // Explicitly call default scroll behaviour
1224 void wxMDIClientWindow::OnScroll(wxScrollEvent& event)
1225 {
1226     // Note: for client windows, the scroll position is not set in
1227     // WM_HSCROLL, WM_VSCROLL, so we can't easily determine what
1228     // scroll position we're at.
1229     // This makes it hard to paint patterns or bitmaps in the background,
1230     // and have the client area scrollable as well.
1231
1232     if ( event.GetOrientation() == wxHORIZONTAL )
1233         m_scrollX = event.GetPosition(); // Always returns zero!
1234     else
1235         m_scrollY = event.GetPosition(); // Always returns zero!
1236
1237     event.Skip();
1238 }
1239
1240 void wxMDIClientWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1241 {
1242     // Try to fix a problem whereby if you show an MDI child frame, then reposition the
1243     // client area, you can end up with a non-refreshed portion in the client window
1244     // (see OGL studio sample). So check if the position is changed and if so,
1245     // redraw the MDI child frames.
1246
1247     wxPoint oldPos = GetPosition();
1248
1249     wxWindow::DoSetSize(x, y, width, height, sizeFlags);
1250
1251     wxPoint newPos = GetPosition();
1252
1253     if ((newPos.x != oldPos.x) || (newPos.y != oldPos.y))
1254     {
1255         if (GetParent())
1256         {
1257             wxWindowList::compatibility_iterator node = GetParent()->GetChildren().GetFirst();
1258             while (node)
1259             {
1260                 wxWindow *child = node->GetData();
1261                 if (child->IsKindOf(CLASSINFO(wxMDIChildFrame)))
1262                 {
1263                    ::RedrawWindow(GetHwndOf(child),
1264                                   NULL,
1265                                   NULL,
1266                                   RDW_FRAME |
1267                                   RDW_ALLCHILDREN |
1268                                   RDW_INVALIDATE);
1269                 }
1270                 node = node->GetNext();
1271             }
1272         }
1273     }
1274 }
1275
1276 void wxMDIChildFrame::OnIdle(wxIdleEvent& event)
1277 {
1278     // MDI child frames get their WM_SIZE when they're constructed but at this
1279     // moment they don't have any children yet so all child windows will be
1280     // positioned incorrectly when they are added later - to fix this, we
1281     // generate an artificial size event here
1282     if ( m_needsResize )
1283     {
1284         m_needsResize = false; // avoid any possibility of recursion
1285
1286         SendSizeEvent();
1287     }
1288
1289     event.Skip();
1290 }
1291
1292 // ---------------------------------------------------------------------------
1293 // non member functions
1294 // ---------------------------------------------------------------------------
1295
1296 static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow)
1297 {
1298     ::SendMessage(GetWinHwnd(win), WM_MDISETMENU,
1299 #ifdef __WIN32__
1300                   (WPARAM)hmenuFrame, (LPARAM)hmenuWindow
1301 #else
1302                   0, MAKELPARAM(hmenuFrame, hmenuWindow)
1303 #endif
1304                  );
1305
1306     // update menu bar of the parent window
1307     wxWindow *parent = win->GetParent();
1308     wxCHECK_RET( parent, wxT("MDI client without parent frame? weird...") );
1309
1310     ::SendMessage(GetWinHwnd(win), WM_MDIREFRESHMENU, 0, 0L);
1311
1312     ::DrawMenuBar(GetWinHwnd(parent));
1313 }
1314
1315 static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu)
1316 {
1317     // Try to insert Window menu in front of Help, otherwise append it.
1318     HMENU hmenu = (HMENU)menu;
1319
1320     if (subMenu)
1321     {
1322         int N = GetMenuItemCount(hmenu);
1323         bool success = false;
1324         for ( int i = 0; i < N; i++ )
1325         {
1326             wxChar buf[256];
1327             int chars = GetMenuString(hmenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION);
1328             if ( chars == 0 )
1329             {
1330                 wxLogLastError(wxT("GetMenuString"));
1331
1332                 continue;
1333             }
1334
1335             if ( wxStripMenuCodes(wxString(buf)).IsSameAs(_("Help")) )
1336             {
1337                 success = true;
1338                 ::InsertMenu(hmenu, i, MF_BYPOSITION | MF_POPUP | MF_STRING,
1339                              (UINT)subMenu, _("&Window"));
1340                 break;
1341             }
1342         }
1343
1344         if ( !success )
1345         {
1346             ::AppendMenu(hmenu, MF_POPUP, (UINT)subMenu, _("&Window"));
1347         }
1348     }
1349
1350     MDISetMenu(win, hmenu, subMenu);
1351 }
1352
1353 static void RemoveWindowMenu(wxWindow *win, WXHMENU menu)
1354 {
1355     HMENU hMenu = (HMENU)menu;
1356
1357     if ( hMenu )
1358     {
1359         wxChar buf[1024];
1360
1361         int N = ::GetMenuItemCount(hMenu);
1362         for ( int i = 0; i < N; i++ )
1363         {
1364             if ( !::GetMenuString(hMenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION) )
1365             {
1366                 // Ignore successful read of menu string with length 0 which
1367                 // occurs, for example, for a maximized MDI childs system menu
1368                 if ( ::GetLastError() != 0 )
1369                 {
1370                     wxLogLastError(wxT("GetMenuString"));
1371                 }
1372
1373                 continue;
1374             }
1375
1376             if ( wxStrcmp(buf, _("&Window")) == 0 )
1377             {
1378                 if ( !::RemoveMenu(hMenu, i, MF_BYPOSITION) )
1379                 {
1380                     wxLogLastError(wxT("RemoveMenu"));
1381                 }
1382
1383                 break;
1384             }
1385         }
1386     }
1387
1388     if ( win )
1389     {
1390         // we don't change the windows menu, but we update the main one
1391         MDISetMenu(win, hMenu, NULL);
1392     }
1393 }
1394
1395 static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam,
1396                               WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact)
1397 {
1398     *activate = true;
1399     *hwndAct = (WXHWND)lParam;
1400     *hwndDeact = (WXHWND)wParam;
1401 }
1402
1403 #endif // wxUSE_MDI && !defined(__WXUNIVERSAL__)
1404