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 #ifdef __GNUG__
  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 #ifndef WX_PRECOMP
  32     #include "wx/setup.h"
  33     #include "wx/frame.h"
  34     #include "wx/menu.h"
  35     #include "wx/app.h"
  36     #include "wx/utils.h"
  37     #include "wx/dialog.h"
  38     #if wxUSE_STATUSBAR
  39         #include "wx/statusbr.h"
  40     #endif
  41     #include "wx/settings.h"
  42     #include "wx/intl.h"
  43     #include "wx/log.h"
  44 #endif
  45
  46 #if wxUSE_MDI_ARCHITECTURE && !defined(__WXUNIVERSAL__)
  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 wxWindowList wxModelessWindows;      // from dialog.cpp
  66 extern wxMenu *wxCurrentPopupMenu;
  67
  68 extern const wxChar *wxMDIFrameClassName;   // from app.cpp
  69 extern const wxChar *wxMDIChildFrameClassName;
  70 extern const wxChar *wxMDIChildFrameClassNameNoRedraw;
  71 #ifdef __DIGITALMARS__
  72 extern "C" void wxAssociateWinWithHandle(HWND hWnd, wxWindow *win);
  73 #else
  74 extern void wxAssociateWinWithHandle(HWND hWnd, wxWindow *win);
  75 #endif
  76 extern void wxRemoveHandleAssociation(wxWindow *win);
  77
  78 static HWND invalidHandle = 0;
  79
  80 // ---------------------------------------------------------------------------
  81 // constants
  82 // ---------------------------------------------------------------------------
  83
  84 static const int IDM_WINDOWTILE  = 4001;
  85 static const int IDM_WINDOWTILEHOR  = 4001;
  86 static const int IDM_WINDOWCASCADE = 4002;
  87 static const int IDM_WINDOWICONS = 4003;
  88 static const int IDM_WINDOWNEXT = 4004;
  89 static const int IDM_WINDOWTILEVERT = 4005;
  90 static const int IDM_WINDOWPREV = 4006;
  91
  92 // This range gives a maximum of 500 MDI children. Should be enough :-)
  93 static const int wxFIRST_MDI_CHILD = 4100;
  94 static const int wxLAST_MDI_CHILD = 4600;
  95
  96 // Status border dimensions
  97 static const int wxTHICK_LINE_BORDER = 3;
  98 static const int wxTHICK_LINE_WIDTH  = 1;
  99
 100 // ---------------------------------------------------------------------------
 101 // private functions
 102 // ---------------------------------------------------------------------------
 103
 104 // set the MDI menus (by sending the WM_MDISETMENU message) and update the menu
 105 // of the parent of win (which is supposed to be the MDI client window)
 106 static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow);
 107
 108 // insert the window menu (subMenu) into menu just before "Help" submenu or at
 109 // the very end if not found
 110 static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu);
 111
 112 // Remove the window menu
 113 static void RemoveWindowMenu(wxWindow *win, WXHMENU menu);
 114
 115 // is this an id of an MDI child?
 116 inline bool IsMdiCommandId(int id)
 117 {
 118     return (id >= wxFIRST_MDI_CHILD) && (id <= wxLAST_MDI_CHILD);
 119 }
 120
 121 // unpack the parameters of WM_MDIACTIVATE message
 122 static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam,
 123                               WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact);
 124
 125 // return the HMENU of the MDI menu
 126 static inline HMENU GetMDIWindowMenu(wxMDIParentFrame *frame)
 127 {
 128     wxMenu *menu = frame->GetWindowMenu();
 129     return menu ? GetHmenuOf(menu) : 0;
 130 }
 131
 132 // ===========================================================================
 133 // implementation
 134 // ===========================================================================
 135
 136 // ---------------------------------------------------------------------------
 137 // wxWin macros
 138 // ---------------------------------------------------------------------------
 139
 140 IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame, wxFrame)
 141 IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame, wxFrame)
 142 IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow, wxWindow)
 143
 144 BEGIN_EVENT_TABLE(wxMDIParentFrame, wxFrame)
 145     EVT_SIZE(wxMDIParentFrame::OnSize)
 146     EVT_SYS_COLOUR_CHANGED(wxMDIParentFrame::OnSysColourChanged)
 147 END_EVENT_TABLE()
 148
 149 BEGIN_EVENT_TABLE(wxMDIChildFrame, wxFrame)
 150     EVT_IDLE(wxMDIChildFrame::OnIdle)
 151 END_EVENT_TABLE()
 152
 153 BEGIN_EVENT_TABLE(wxMDIClientWindow, wxWindow)
 154     EVT_SCROLL(wxMDIClientWindow::OnScroll)
 155 END_EVENT_TABLE()
 156
 157 // ===========================================================================
 158 // wxMDIParentFrame: the frame which contains the client window which manages
 159 // the children
 160 // ===========================================================================
 161
 162 wxMDIParentFrame::wxMDIParentFrame()
 163 {
 164     m_clientWindow = NULL;
 165     m_currentChild = NULL;
 166     m_windowMenu = (wxMenu*) NULL;
 167     m_parentFrameActive = true;
 168 }
 169
 170 bool wxMDIParentFrame::Create(wxWindow *parent,
 171                               wxWindowID id,
 172                               const wxString& title,
 173                               const wxPoint& pos,
 174                               const wxSize& size,
 175                               long style,
 176                               const wxString& name)
 177 {
 178   m_clientWindow = NULL;
 179   m_currentChild = NULL;
 180
 181   // this style can be used to prevent a window from having the standard MDI
 182   // "Window" menu
 183   if ( style & wxFRAME_NO_WINDOW_MENU )
 184   {
 185       m_windowMenu = (wxMenu *)NULL;
 186   }
 187   else // normal case: we have the window menu, so construct it
 188   {
 189       m_windowMenu = new wxMenu;
 190
 191       m_windowMenu->Append(IDM_WINDOWCASCADE, _("&Cascade"));
 192       m_windowMenu->Append(IDM_WINDOWTILEHOR, _("Tile &Horizontally"));
 193       m_windowMenu->Append(IDM_WINDOWTILEVERT, _("Tile &Vertically"));
 194       m_windowMenu->AppendSeparator();
 195       m_windowMenu->Append(IDM_WINDOWICONS, _("&Arrange Icons"));
 196       m_windowMenu->Append(IDM_WINDOWNEXT, _("&Next"));
 197       m_windowMenu->Append(IDM_WINDOWPREV, _("&Previous"));
 198   }
 199
 200   m_parentFrameActive = true;
 201
 202   if (!parent)
 203     wxTopLevelWindows.Append(this);
 204
 205   SetName(name);
 206   m_windowStyle = style;
 207
 208   if ( parent )
 209       parent->AddChild(this);
 210
 211   if ( id > -1 )
 212     m_windowId = id;
 213   else
 214     m_windowId = NewControlId();
 215
 216   WXDWORD exflags;
 217   WXDWORD msflags = MSWGetCreateWindowFlags(&exflags);
 218   msflags &= ~WS_VSCROLL;
 219   msflags &= ~WS_HSCROLL;
 220
 221   if ( !wxWindow::MSWCreate(wxMDIFrameClassName,
 222                             title,
 223                             pos, size,
 224                             msflags,
 225                             exflags) )
 226   {
 227       return false;
 228   }
 229
 230   wxModelessWindows.Append(this);
 231
 232   // unlike (almost?) all other windows, frames are created hidden
 233   m_isShown = false;
 234
 235   return true;
 236 }
 237
 238 wxMDIParentFrame::~wxMDIParentFrame()
 239 {
 240     DestroyChildren();
 241
 242     // already delete by DestroyChildren()
 243     m_frameToolBar = NULL;
 244     m_frameStatusBar = NULL;
 245
 246     if (m_windowMenu)
 247     {
 248         delete m_windowMenu;
 249         m_windowMenu = (wxMenu*) NULL;
 250     }
 251
 252     // the MDI frame menubar is not automatically deleted by Windows unlike for
 253     // the normal frames
 254     if ( m_hMenu )
 255     {
 256         ::DestroyMenu((HMENU)m_hMenu);
 257         m_hMenu = (WXHMENU)NULL;
 258     }
 259
 260     if ( m_clientWindow )
 261     {
 262         if ( m_clientWindow->MSWGetOldWndProc() )
 263             m_clientWindow->UnsubclassWin();
 264
 265         m_clientWindow->SetHWND(0);
 266         delete m_clientWindow;
 267     }
 268 }
 269
 270 #if wxUSE_MENUS_NATIVE
 271
 272 void wxMDIParentFrame::InternalSetMenuBar()
 273 {
 274     m_parentFrameActive = true;
 275
 276     InsertWindowMenu(GetClientWindow(), m_hMenu, GetMDIWindowMenu(this));
 277 }
 278
 279 #endif // wxUSE_MENUS_NATIVE
 280
 281 void wxMDIParentFrame::SetWindowMenu(wxMenu* menu)
 282 {
 283     if (m_windowMenu)
 284     {
 285         if (GetMenuBar())
 286         {
 287             // Remove old window menu
 288             RemoveWindowMenu(GetClientWindow(), m_hMenu);
 289         }
 290
 291         delete m_windowMenu;
 292         m_windowMenu = (wxMenu*) NULL;
 293     }
 294
 295     if (menu)
 296     {
 297         m_windowMenu = menu;
 298         if (GetMenuBar())
 299         {
 300             InsertWindowMenu(GetClientWindow(), m_hMenu,
 301                              GetHmenuOf(m_windowMenu));
 302         }
 303     }
 304 }
 305
 306 void wxMDIParentFrame::OnSize(wxSizeEvent&)
 307 {
 308     if ( GetClientWindow() )
 309     {
 310         int width, height;
 311         GetClientSize(&width, &height);
 312
 313         GetClientWindow()->SetSize(0, 0, width, height);
 314     }
 315 }
 316
 317 // Returns the active MDI child window
 318 wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const
 319 {
 320     HWND hWnd = (HWND)::SendMessage(GetWinHwnd(GetClientWindow()),
 321                                     WM_MDIGETACTIVE, 0, 0L);
 322     if ( hWnd == 0 )
 323         return NULL;
 324     else
 325         return (wxMDIChildFrame *)wxFindWinFromHandle((WXHWND) hWnd);
 326 }
 327
 328 // Create the client window class (don't Create the window, just return a new
 329 // class)
 330 wxMDIClientWindow *wxMDIParentFrame::OnCreateClient()
 331 {
 332     return new wxMDIClientWindow;
 333 }
 334
 335 // Responds to colour changes, and passes event on to children.
 336 void wxMDIParentFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
 337 {
 338     if ( m_clientWindow )
 339     {
 340         m_clientWindow->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
 341         m_clientWindow->Refresh();
 342     }
 343
 344     event.Skip();
 345 }
 346
 347 WXHICON wxMDIParentFrame::GetDefaultIcon() const
 348 {
 349     return (WXHICON)(wxSTD_MDIPARENTFRAME_ICON ? wxSTD_MDIPARENTFRAME_ICON
 350                                                : wxDEFAULT_MDIPARENTFRAME_ICON);
 351 }
 352
 353 // ---------------------------------------------------------------------------
 354 // MDI operations
 355 // ---------------------------------------------------------------------------
 356
 357 void wxMDIParentFrame::Cascade()
 358 {
 359     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDICASCADE, 0, 0);
 360 }
 361
 362 // TODO: add a direction argument (hor/vert)
 363 void wxMDIParentFrame::Tile()
 364 {
 365     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDITILE, MDITILE_HORIZONTAL, 0);
 366 }
 367
 368 void wxMDIParentFrame::ArrangeIcons()
 369 {
 370     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDIICONARRANGE, 0, 0);
 371 }
 372
 373 void wxMDIParentFrame::ActivateNext()
 374 {
 375     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 0);
 376 }
 377
 378 void wxMDIParentFrame::ActivatePrevious()
 379 {
 380     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 1);
 381 }
 382
 383 // ---------------------------------------------------------------------------
 384 // the MDI parent frame window proc
 385 // ---------------------------------------------------------------------------
 386
 387 long wxMDIParentFrame::MSWWindowProc(WXUINT message,
 388                                      WXWPARAM wParam,
 389                                      WXLPARAM lParam)
 390 {
 391     long rc = 0;
 392     bool processed = false;
 393
 394     switch ( message )
 395     {
 396         case WM_ACTIVATE:
 397             {
 398                 WXWORD state, minimized;
 399                 WXHWND hwnd;
 400                 UnpackActivate(wParam, lParam, &state, &minimized, &hwnd);
 401
 402                 processed = HandleActivate(state, minimized != 0, hwnd);
 403             }
 404             break;
 405
 406         case WM_COMMAND:
 407             {
 408                 WXWORD id, cmd;
 409                 WXHWND hwnd;
 410                 UnpackCommand(wParam, lParam, &id, &hwnd, &cmd);
 411
 412                 (void)HandleCommand(id, cmd, hwnd);
 413
 414                 // even if the frame didn't process it, there is no need to try it
 415                 // once again (i.e. call wxFrame::HandleCommand()) - we just dud it,
 416                 // so pretend we processed the message anyhow
 417                 processed = true;
 418             }
 419
 420             // always pass this message DefFrameProc(), otherwise MDI menu
 421             // commands (and sys commands - more surprizingly!) won't work
 422             MSWDefWindowProc(message, wParam, lParam);
 423             break;
 424
 425         case WM_CREATE:
 426             m_clientWindow = OnCreateClient();
 427             // Uses own style for client style
 428             if ( !m_clientWindow->CreateClient(this, GetWindowStyleFlag()) )
 429             {
 430                 wxLogMessage(_("Failed to create MDI parent frame."));
 431
 432                 rc = -1;
 433             }
 434
 435             processed = true;
 436             break;
 437
 438         case WM_ERASEBKGND:
 439             processed = true;
 440
 441             // we erase background ourselves
 442             rc = true;
 443             break;
 444
 445         case WM_MENUSELECT:
 446             {
 447                 WXWORD item, flags;
 448                 WXHMENU hmenu;
 449                 UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
 450
 451                 if ( m_parentFrameActive )
 452                 {
 453                     processed = HandleMenuSelect(item, flags, hmenu);
 454                 }
 455                 else if (m_currentChild)
 456                 {
 457                     processed = m_currentChild->
 458                         HandleMenuSelect(item, flags, hmenu);
 459                 }
 460             }
 461             break;
 462
 463         case WM_SIZE:
 464             // as we don't (usually) resize the MDI client to exactly fit the
 465             // client area (we put it below the toolbar, above statusbar &c),
 466             // we should not pass this one to DefFrameProc
 467             break;
 468     }
 469
 470     if ( !processed )
 471         rc = wxFrame::MSWWindowProc(message, wParam, lParam);
 472
 473     return rc;
 474 }
 475
 476 bool wxMDIParentFrame::HandleActivate(int state, bool minimized, WXHWND activate)
 477 {
 478     bool processed = false;
 479
 480     if ( wxWindow::HandleActivate(state, minimized, activate) )
 481     {
 482         // already processed
 483         processed = true;
 484     }
 485
 486     // If this window is an MDI parent, we must also send an OnActivate message
 487     // to the current child.
 488     if ( (m_currentChild != NULL) &&
 489          ((state == WA_ACTIVE) || (state == WA_CLICKACTIVE)) )
 490     {
 491         wxActivateEvent event(wxEVT_ACTIVATE, true, m_currentChild->GetId());
 492         event.SetEventObject( m_currentChild );
 493         if ( m_currentChild->GetEventHandler()->ProcessEvent(event) )
 494             processed = true;
 495     }
 496
 497     return processed;
 498 }
 499
 500 bool wxMDIParentFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd)
 501 {
 502     // In case it's e.g. a toolbar.
 503     if ( hwnd )
 504     {
 505         wxWindow *win = wxFindWinFromHandle(hwnd);
 506         if ( win )
 507             return win->MSWCommand(cmd, id);
 508     }
 509
 510     // is it one of standard MDI commands?
 511     WXWPARAM wParam = 0;
 512     WXLPARAM lParam = 0;
 513     int msg;
 514     switch ( id )
 515     {
 516         case IDM_WINDOWCASCADE:
 517             msg = WM_MDICASCADE;
 518             wParam = MDITILE_SKIPDISABLED;
 519             break;
 520
 521         case IDM_WINDOWTILEHOR:
 522             wParam |= MDITILE_HORIZONTAL;
 523             // fall through
 524
 525         case IDM_WINDOWTILEVERT:
 526             if ( !wParam )
 527                 wParam = MDITILE_VERTICAL;
 528             msg = WM_MDITILE;
 529             wParam |= MDITILE_SKIPDISABLED;
 530             break;
 531
 532         case IDM_WINDOWICONS:
 533             msg = WM_MDIICONARRANGE;
 534             break;
 535
 536         case IDM_WINDOWNEXT:
 537             msg = WM_MDINEXT;
 538             lParam = 0;         // next child
 539             break;
 540
 541         case IDM_WINDOWPREV:
 542             msg = WM_MDINEXT;
 543             lParam = 1;         // previous child
 544             break;
 545
 546         default:
 547             msg = 0;
 548     }
 549
 550     if ( msg )
 551     {
 552         ::SendMessage(GetWinHwnd(GetClientWindow()), msg, wParam, lParam);
 553
 554         return true;
 555     }
 556
 557     // FIXME VZ: what does this test do??
 558     if (id >= 0xF000)
 559     {
 560         return false; // Get WndProc to call default proc
 561     }
 562
 563     if ( IsMdiCommandId(id) )
 564     {
 565         wxWindowList::Node *node = GetChildren().GetFirst();
 566         while ( node )
 567         {
 568             wxWindow *child = node->GetData();
 569             if ( child->GetHWND() )
 570             {
 571                 long childId = wxGetWindowId(child->GetHWND());
 572                 if (childId == (long)id)
 573                 {
 574                     ::SendMessage( GetWinHwnd(GetClientWindow()),
 575                                    WM_MDIACTIVATE,
 576                                    (WPARAM)child->GetHWND(), 0);
 577                     return true;
 578                 }
 579             }
 580             node = node->GetNext();
 581         }
 582     }
 583     else if ( m_parentFrameActive )
 584     {
 585         return ProcessCommand(id);
 586     }
 587     else if ( m_currentChild )
 588     {
 589         return m_currentChild->HandleCommand(id, cmd, hwnd);
 590     }
 591     else
 592     {
 593         // this shouldn't happen because it means that our messages are being
 594         // lost (they're not sent to the parent frame nor to the children)
 595         wxFAIL_MSG(wxT("MDI parent frame is not active, yet there is no active MDI child?"));
 596     }
 597
 598     return false;
 599 }
 600
 601 long wxMDIParentFrame::MSWDefWindowProc(WXUINT message,
 602                                         WXWPARAM wParam,
 603                                         WXLPARAM lParam)
 604 {
 605     WXHWND clientWnd;
 606     if ( GetClientWindow() )
 607         clientWnd = GetClientWindow()->GetHWND();
 608     else
 609         clientWnd = 0;
 610
 611     return DefFrameProc(GetHwnd(), (HWND)clientWnd, message, wParam, lParam);
 612 }
 613
 614 bool wxMDIParentFrame::MSWTranslateMessage(WXMSG* msg)
 615 {
 616     MSG *pMsg = (MSG *)msg;
 617
 618     // first let the current child get it
 619     if ( m_currentChild && m_currentChild->GetHWND() &&
 620          m_currentChild->MSWTranslateMessage(msg) )
 621     {
 622         return true;
 623     }
 624
 625     // then try out accel table (will also check the menu accels)
 626     if ( wxFrame::MSWTranslateMessage(msg) )
 627     {
 628         return true;
 629     }
 630
 631     // finally, check for MDI specific built in accel keys
 632     if ( pMsg->message == WM_KEYDOWN || pMsg->message == WM_SYSKEYDOWN )
 633     {
 634         if ( ::TranslateMDISysAccel(GetWinHwnd(GetClientWindow()), pMsg))
 635             return true;
 636     }
 637
 638     return false;
 639 }
 640
 641 // ===========================================================================
 642 // wxMDIChildFrame
 643 // ===========================================================================
 644
 645 void wxMDIChildFrame::Init()
 646 {
 647     m_needsResize = true;
 648 }
 649
 650 bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
 651                              wxWindowID id,
 652                              const wxString& title,
 653                              const wxPoint& pos,
 654                              const wxSize& size,
 655                              long style,
 656                              const wxString& name)
 657 {
 658   SetName(name);
 659   wxWindowBase::Show(true); // MDI child frame starts off shown
 660
 661   if ( id > -1 )
 662     m_windowId = id;
 663   else
 664     m_windowId = (int)NewControlId();
 665
 666   if ( parent )
 667   {
 668       parent->AddChild(this);
 669   }
 670
 671   int x = pos.x;
 672   int y = pos.y;
 673   int width = size.x;
 674   int height = size.y;
 675
 676   MDICREATESTRUCT mcs;
 677
 678   mcs.szClass = style & wxNO_FULL_REPAINT_ON_RESIZE
 679                     ? wxMDIChildFrameClassNameNoRedraw
 680                     : wxMDIChildFrameClassName;
 681   mcs.szTitle = title;
 682   mcs.hOwner = wxGetInstance();
 683   if (x > -1)
 684       mcs.x = x;
 685   else
 686       mcs.x = CW_USEDEFAULT;
 687
 688   if (y > -1)
 689       mcs.y = y;
 690   else
 691       mcs.y = CW_USEDEFAULT;
 692
 693   if (width > -1)
 694       mcs.cx = width;
 695   else
 696       mcs.cx = CW_USEDEFAULT;
 697
 698   if (height > -1)
 699       mcs.cy = height;
 700   else
 701       mcs.cy = CW_USEDEFAULT;
 702
 703   DWORD msflags = WS_OVERLAPPED | WS_CLIPCHILDREN | WS_THICKFRAME | WS_VISIBLE ;
 704   if (style & wxMINIMIZE_BOX)
 705     msflags |= WS_MINIMIZEBOX;
 706   if (style & wxMAXIMIZE_BOX)
 707     msflags |= WS_MAXIMIZEBOX;
 708   if (style & wxTHICK_FRAME)
 709     msflags |= WS_THICKFRAME;
 710   if (style & wxSYSTEM_MENU)
 711     msflags |= WS_SYSMENU;
 712   if ((style & wxMINIMIZE) || (style & wxICONIZE))
 713     msflags |= WS_MINIMIZE;
 714   if (style & wxMAXIMIZE)
 715     msflags |= WS_MAXIMIZE;
 716   if (style & wxCAPTION)
 717     msflags |= WS_CAPTION;
 718
 719   mcs.style = msflags;
 720
 721   mcs.lParam = 0;
 722
 723   wxWindowCreationHook hook(this);
 724
 725   m_hWnd = (WXHWND)::SendMessage(GetWinHwnd(parent->GetClientWindow()),
 726                                  WM_MDICREATE, 0, (LONG)(LPSTR)&mcs);
 727
 728   wxAssociateWinWithHandle((HWND) GetHWND(), this);
 729
 730   wxModelessWindows.Append(this);
 731
 732   return true;
 733 }
 734
 735 wxMDIChildFrame::~wxMDIChildFrame()
 736 {
 737     DestroyChildren();
 738
 739     // already deleted by DestroyChildren()
 740     m_frameToolBar = NULL;
 741     m_frameStatusBar = NULL;
 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 wxWindows)
 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 (GetStatusBar() && GetStatusBar()->IsShown())
 767   {
 768     int sx, sy;
 769     GetStatusBar()->GetSize(&sx, &sy);
 770     actual_height += sy;
 771   }
 772
 773   POINT point;
 774   point.x = rect2.left;
 775   point.y = rect2.top;
 776
 777   // If there's an MDI parent, must subtract the parent's top left corner
 778   // since MoveWindow moves relative to the parent
 779   wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent();
 780   ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
 781
 782   MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)true);
 783
 784   wxSizeEvent event(wxSize(width, height), m_windowId);
 785   event.SetEventObject( this );
 786   GetEventHandler()->ProcessEvent(event);
 787 }
 788
 789 void wxMDIChildFrame::DoGetPosition(int *x, int *y) const
 790 {
 791   RECT rect;
 792   GetWindowRect(GetHwnd(), &rect);
 793   POINT point;
 794   point.x = rect.left;
 795   point.y = rect.top;
 796
 797   // Since we now have the absolute screen coords,
 798   // if there's a parent we must subtract its top left corner
 799   wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent();
 800   ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
 801
 802   *x = point.x;
 803   *y = point.y;
 804 }
 805
 806 void wxMDIChildFrame::InternalSetMenuBar()
 807 {
 808     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 809
 810     InsertWindowMenu(parent->GetClientWindow(),
 811                      m_hMenu, GetMDIWindowMenu(parent));
 812
 813     parent->m_parentFrameActive = false;
 814 }
 815
 816 WXHICON wxMDIChildFrame::GetDefaultIcon() const
 817 {
 818     return (WXHICON)(wxSTD_MDICHILDFRAME_ICON ? wxSTD_MDICHILDFRAME_ICON
 819                                               : wxDEFAULT_MDICHILDFRAME_ICON);
 820 }
 821
 822 // ---------------------------------------------------------------------------
 823 // MDI operations
 824 // ---------------------------------------------------------------------------
 825
 826 void wxMDIChildFrame::Maximize(bool maximize)
 827 {
 828     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 829     if ( parent && parent->GetClientWindow() )
 830     {
 831         ::SendMessage(GetWinHwnd(parent->GetClientWindow()),
 832                       maximize ? WM_MDIMAXIMIZE : WM_MDIRESTORE,
 833                       (WPARAM)GetHwnd(), 0);
 834     }
 835 }
 836
 837 void wxMDIChildFrame::Restore()
 838 {
 839     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 840     if ( parent && parent->GetClientWindow() )
 841     {
 842         ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIRESTORE,
 843                       (WPARAM) GetHwnd(), 0);
 844     }
 845 }
 846
 847 void wxMDIChildFrame::Activate()
 848 {
 849     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 850     if ( parent && parent->GetClientWindow() )
 851     {
 852         ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIACTIVATE,
 853                       (WPARAM) GetHwnd(), 0);
 854     }
 855 }
 856
 857 // ---------------------------------------------------------------------------
 858 // MDI window proc and message handlers
 859 // ---------------------------------------------------------------------------
 860
 861 long wxMDIChildFrame::MSWWindowProc(WXUINT message,
 862                                     WXWPARAM wParam,
 863                                     WXLPARAM lParam)
 864 {
 865     long rc = 0;
 866     bool processed = false;
 867
 868     switch ( message )
 869     {
 870         case WM_COMMAND:
 871             {
 872                 WORD id, cmd;
 873                 WXHWND hwnd;
 874                 UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
 875                               &id, &hwnd, &cmd);
 876
 877                 processed = HandleCommand(id, cmd, (WXHWND)hwnd);
 878             }
 879             break;
 880
 881         case WM_GETMINMAXINFO:
 882             processed = HandleGetMinMaxInfo((MINMAXINFO *)lParam);
 883             break;
 884
 885         case WM_MDIACTIVATE:
 886             {
 887                 WXWORD act;
 888                 WXHWND hwndAct, hwndDeact;
 889                 UnpackMDIActivate(wParam, lParam, &act, &hwndAct, &hwndDeact);
 890
 891                 processed = HandleMDIActivate(act, hwndAct, hwndDeact);
 892             }
 893             // fall through
 894
 895         case WM_MOVE:
 896             // must pass WM_MOVE to DefMDIChildProc() to recalculate MDI client
 897             // scrollbars if necessary
 898
 899             // fall through
 900
 901         case WM_SIZE:
 902             // must pass WM_SIZE to DefMDIChildProc(), otherwise many weird
 903             // things happen
 904             MSWDefWindowProc(message, wParam, lParam);
 905             break;
 906
 907         case WM_SYSCOMMAND:
 908             // DefMDIChildProc handles SC_{NEXT/PREV}WINDOW here, so pass it
 909             // the message (the base class version does not)
 910             return MSWDefWindowProc(message, wParam, lParam);
 911
 912         case WM_WINDOWPOSCHANGING:
 913             processed = HandleWindowPosChanging((LPWINDOWPOS)lParam);
 914             break;
 915     }
 916
 917     if ( !processed )
 918         rc = wxFrame::MSWWindowProc(message, wParam, lParam);
 919
 920     return rc;
 921 }
 922
 923 bool wxMDIChildFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd)
 924 {
 925     // In case it's e.g. a toolbar.
 926     if ( hwnd )
 927     {
 928         wxWindow *win = wxFindWinFromHandle(hwnd);
 929         if (win)
 930             return win->MSWCommand(cmd, id);
 931     }
 932
 933     if (wxCurrentPopupMenu)
 934     {
 935         wxMenu *popupMenu = wxCurrentPopupMenu;
 936         wxCurrentPopupMenu = NULL;
 937         if (popupMenu->MSWCommand(cmd, id))
 938             return true;
 939     }
 940
 941     bool processed;
 942     if (GetMenuBar() && GetMenuBar()->FindItem(id))
 943     {
 944         processed = ProcessCommand(id);
 945     }
 946     else
 947     {
 948         processed = false;
 949     }
 950
 951     return processed;
 952 }
 953
 954 bool wxMDIChildFrame::HandleMDIActivate(long WXUNUSED(activate),
 955                                         WXHWND hwndAct,
 956                                         WXHWND hwndDeact)
 957 {
 958     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 959
 960     HMENU menuToSet = 0;
 961
 962     bool activated;
 963
 964     if ( m_hWnd == hwndAct )
 965     {
 966         activated = true;
 967         parent->m_currentChild = this;
 968
 969         HMENU child_menu = (HMENU)GetWinMenu();
 970         if ( child_menu )
 971         {
 972             parent->m_parentFrameActive = false;
 973
 974             menuToSet = child_menu;
 975         }
 976     }
 977     else if ( m_hWnd == hwndDeact )
 978     {
 979         wxASSERT_MSG( parent->m_currentChild == this,
 980                       wxT("can't deactivate MDI child which wasn't active!") );
 981
 982         activated = false;
 983         parent->m_currentChild = NULL;
 984
 985         HMENU parent_menu = (HMENU)parent->GetWinMenu();
 986
 987         // activate the the parent menu only when there is no other child
 988         // that has been activated
 989         if ( parent_menu && !hwndAct )
 990         {
 991             parent->m_parentFrameActive = true;
 992
 993             menuToSet = parent_menu;
 994         }
 995     }
 996     else
 997     {
 998         // we have nothing to do with it
 999         return false;
1000     }
1001
1002     if ( menuToSet )
1003     {
1004         MDISetMenu(parent->GetClientWindow(),
1005                    menuToSet, GetMDIWindowMenu(parent));
1006     }
1007
1008     wxActivateEvent event(wxEVT_ACTIVATE, activated, m_windowId);
1009     event.SetEventObject( this );
1010
1011     ResetWindowStyle((void *)NULL);
1012
1013     return GetEventHandler()->ProcessEvent(event);
1014 }
1015
1016 bool wxMDIChildFrame::HandleWindowPosChanging(void *pos)
1017 {
1018     WINDOWPOS *lpPos = (WINDOWPOS *)pos;
1019 #if defined(__WIN95__)
1020     if (!(lpPos->flags & SWP_NOSIZE))
1021     {
1022         RECT rectClient;
1023         DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
1024         DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
1025         if (ResetWindowStyle((void *) & rectClient) && (dwStyle & WS_MAXIMIZE))
1026         {
1027             ::AdjustWindowRectEx(&rectClient, dwStyle, false, dwExStyle);
1028             lpPos->x = rectClient.left;
1029             lpPos->y = rectClient.top;
1030             lpPos->cx = rectClient.right - rectClient.left;
1031             lpPos->cy = rectClient.bottom - rectClient.top;
1032         }
1033         wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent();
1034         if (pFrameWnd && pFrameWnd->GetToolBar() && pFrameWnd->GetToolBar()->IsShown())
1035         {
1036             pFrameWnd->GetToolBar()->Refresh();
1037         }
1038     }
1039 #endif // Win95
1040
1041     return false;
1042 }
1043
1044 bool wxMDIChildFrame::HandleGetMinMaxInfo(void *mmInfo)
1045 {
1046     MINMAXINFO *info = (MINMAXINFO *)mmInfo;
1047
1048     // let the default window proc calculate the size of MDI children
1049     // frames because it is based on the size of the MDI client window,
1050     // not on the values specified in wxWindow m_max variables
1051     bool processed = MSWDefWindowProc(WM_GETMINMAXINFO, 0, (LPARAM)mmInfo) != 0;
1052
1053     int minWidth = GetMinWidth(),
1054         minHeight = GetMinHeight();
1055
1056     // but allow GetSizeHints() to set the min size
1057     if ( minWidth != -1 )
1058     {
1059         info->ptMinTrackSize.x = minWidth;
1060
1061         processed = true;
1062     }
1063
1064     if ( minHeight != -1 )
1065     {
1066         info->ptMinTrackSize.y = minHeight;
1067
1068         processed = true;
1069     }
1070
1071     return true;
1072 }
1073
1074 // ---------------------------------------------------------------------------
1075 // MDI specific message translation/preprocessing
1076 // ---------------------------------------------------------------------------
1077
1078 long wxMDIChildFrame::MSWDefWindowProc(WXUINT message, WXUINT wParam, WXLPARAM lParam)
1079 {
1080     return DefMDIChildProc(GetHwnd(),
1081                            (UINT)message, (WPARAM)wParam, (LPARAM)lParam);
1082 }
1083
1084 bool wxMDIChildFrame::MSWTranslateMessage(WXMSG* msg)
1085 {
1086     return wxFrame::MSWTranslateMessage(msg);
1087 }
1088
1089 // ---------------------------------------------------------------------------
1090 // misc
1091 // ---------------------------------------------------------------------------
1092
1093 void wxMDIChildFrame::MSWDestroyWindow()
1094 {
1095     invalidHandle = GetHwnd();
1096
1097     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
1098
1099     // Must make sure this handle is invalidated (set to NULL) since all sorts
1100     // of things could happen after the child client is destroyed, but before
1101     // the wxFrame is destroyed.
1102
1103     HWND oldHandle = (HWND)GetHWND();
1104     SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIDESTROY,
1105                 (WPARAM)oldHandle, 0);
1106
1107     if (parent->GetActiveChild() == (wxMDIChildFrame*) NULL)
1108         ResetWindowStyle((void*) NULL);
1109
1110     invalidHandle = 0;
1111
1112     if (m_hMenu)
1113     {
1114         ::DestroyMenu((HMENU) m_hMenu);
1115         m_hMenu = 0;
1116     }
1117     wxRemoveHandleAssociation(this);
1118     m_hWnd = 0;
1119 }
1120
1121 // Change the client window's extended style so we don't get a client edge
1122 // style when a child is maximised (a double border looks silly.)
1123 bool wxMDIChildFrame::ResetWindowStyle(void *vrect)
1124 {
1125 #if defined(__WIN95__)
1126     RECT *rect = (RECT *)vrect;
1127     wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent();
1128     wxMDIChildFrame* pChild = pFrameWnd->GetActiveChild();
1129     if (!pChild || (pChild == this))
1130     {
1131         HWND hwndClient = GetWinHwnd(pFrameWnd->GetClientWindow());
1132         DWORD dwStyle = ::GetWindowLong(hwndClient, GWL_EXSTYLE);
1133
1134         // we want to test whether there is a maximized child, so just set
1135         // dwThisStyle to 0 if there is no child at all
1136         DWORD dwThisStyle = pChild
1137             ? ::GetWindowLong(GetWinHwnd(pChild), GWL_STYLE) : 0;
1138         DWORD dwNewStyle = dwStyle;
1139         if ( dwThisStyle & WS_MAXIMIZE )
1140             dwNewStyle &= ~(WS_EX_CLIENTEDGE);
1141         else
1142             dwNewStyle |= WS_EX_CLIENTEDGE;
1143
1144         if (dwStyle != dwNewStyle)
1145         {
1146             // force update of everything
1147             ::RedrawWindow(hwndClient, NULL, NULL,
1148                            RDW_INVALIDATE | RDW_ALLCHILDREN);
1149             ::SetWindowLong(hwndClient, GWL_EXSTYLE, dwNewStyle);
1150             ::SetWindowPos(hwndClient, NULL, 0, 0, 0, 0,
1151                            SWP_FRAMECHANGED | SWP_NOACTIVATE |
1152                            SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
1153                            SWP_NOCOPYBITS);
1154             if (rect)
1155                 ::GetClientRect(hwndClient, rect);
1156
1157             return true;
1158         }
1159     }
1160 #endif // Win95
1161
1162     return false;
1163 }
1164
1165 // ===========================================================================
1166 // wxMDIClientWindow: the window of predefined (by Windows) class which
1167 // contains the child frames
1168 // ===========================================================================
1169
1170 bool wxMDIClientWindow::CreateClient(wxMDIParentFrame *parent, long style)
1171 {
1172     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE);
1173
1174     CLIENTCREATESTRUCT ccs;
1175     m_windowStyle = style;
1176     m_parent = parent;
1177
1178     ccs.hWindowMenu = GetMDIWindowMenu(parent);
1179     ccs.idFirstChild = wxFIRST_MDI_CHILD;
1180
1181     DWORD msStyle = MDIS_ALLCHILDSTYLES | WS_VISIBLE | WS_CHILD |
1182                     WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
1183
1184     if ( style & wxHSCROLL )
1185         msStyle |= WS_HSCROLL;
1186     if ( style & wxVSCROLL )
1187         msStyle |= WS_VSCROLL;
1188
1189 #if defined(__WIN95__)
1190     DWORD exStyle = WS_EX_CLIENTEDGE;
1191 #else
1192     DWORD exStyle = 0;
1193 #endif
1194
1195     wxWindowCreationHook hook(this);
1196     m_hWnd = (WXHWND)::CreateWindowEx
1197                        (
1198                         exStyle,
1199                         wxT("MDICLIENT"),
1200                         NULL,
1201                         msStyle,
1202                         0, 0, 0, 0,
1203                         GetWinHwnd(parent),
1204                         NULL,
1205                         wxGetInstance(),
1206                         (LPSTR)(LPCLIENTCREATESTRUCT)&ccs);
1207     if ( !m_hWnd )
1208     {
1209         wxLogLastError(wxT("CreateWindowEx(MDI client)"));
1210
1211         return false;
1212     }
1213
1214     SubclassWin(m_hWnd);
1215
1216     return true;
1217 }
1218
1219 // Explicitly call default scroll behaviour
1220 void wxMDIClientWindow::OnScroll(wxScrollEvent& event)
1221 {
1222     // Note: for client windows, the scroll position is not set in
1223     // WM_HSCROLL, WM_VSCROLL, so we can't easily determine what
1224     // scroll position we're at.
1225     // This makes it hard to paint patterns or bitmaps in the background,
1226     // and have the client area scrollable as well.
1227
1228     if ( event.GetOrientation() == wxHORIZONTAL )
1229         m_scrollX = event.GetPosition(); // Always returns zero!
1230     else
1231         m_scrollY = event.GetPosition(); // Always returns zero!
1232
1233     event.Skip();
1234 }
1235
1236 void wxMDIClientWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1237 {
1238     // Try to fix a problem whereby if you show an MDI child frame, then reposition the
1239     // client area, you can end up with a non-refreshed portion in the client window
1240     // (see OGL studio sample). So check if the position is changed and if so,
1241     // redraw the MDI child frames.
1242
1243     wxPoint oldPos = GetPosition();
1244
1245     wxWindow::DoSetSize(x, y, width, height, sizeFlags);
1246
1247     wxPoint newPos = GetPosition();
1248
1249     if ((newPos.x != oldPos.x) || (newPos.y != oldPos.y))
1250     {
1251         if (GetParent())
1252         {
1253             wxWindowList::Node *node = GetParent()->GetChildren().GetFirst();
1254             while (node)
1255             {
1256                 wxWindow *child = node->GetData();
1257                 if (child->IsKindOf(CLASSINFO(wxMDIChildFrame)))
1258                 {
1259                    ::RedrawWindow(GetHwndOf(child),
1260                                   NULL,
1261                                   NULL,
1262                                   RDW_FRAME |
1263                                   RDW_ALLCHILDREN |
1264                                   RDW_INVALIDATE);
1265                 }
1266                 node = node->GetNext();
1267             }
1268         }
1269     }
1270 }
1271
1272 void wxMDIChildFrame::OnIdle(wxIdleEvent& event)
1273 {
1274     // MDI child frames get their WM_SIZE when they're constructed but at this
1275     // moment they don't have any children yet so all child windows will be
1276     // positioned incorrectly when they are added later - to fix this, we
1277     // generate an artificial size event here
1278     if ( m_needsResize )
1279     {
1280         m_needsResize = false; // avoid any possibility of recursion
1281
1282         SendSizeEvent();
1283     }
1284
1285     event.Skip();
1286 }
1287
1288 // ---------------------------------------------------------------------------
1289 // non member functions
1290 // ---------------------------------------------------------------------------
1291
1292 static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow)
1293 {
1294     ::SendMessage(GetWinHwnd(win), WM_MDISETMENU,
1295 #ifdef __WIN32__
1296                   (WPARAM)hmenuFrame, (LPARAM)hmenuWindow
1297 #else
1298                   0, MAKELPARAM(hmenuFrame, hmenuWindow)
1299 #endif
1300                  );
1301
1302     // update menu bar of the parent window
1303     wxWindow *parent = win->GetParent();
1304     wxCHECK_RET( parent, wxT("MDI client without parent frame? weird...") );
1305
1306 #ifndef __WIN16__
1307     ::SendMessage(GetWinHwnd(win), WM_MDIREFRESHMENU, 0, 0L);
1308 #endif
1309
1310     ::DrawMenuBar(GetWinHwnd(parent));
1311 }
1312
1313 static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu)
1314 {
1315     // Try to insert Window menu in front of Help, otherwise append it.
1316     HMENU hmenu = (HMENU)menu;
1317
1318     if (subMenu)
1319     {
1320         int N = GetMenuItemCount(hmenu);
1321         bool success = false;
1322         for ( int i = 0; i < N; i++ )
1323         {
1324             wxChar buf[256];
1325             int chars = GetMenuString(hmenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION);
1326             if ( chars == 0 )
1327             {
1328                 wxLogLastError(wxT("GetMenuString"));
1329
1330                 continue;
1331             }
1332
1333             if ( wxStripMenuCodes(wxString(buf)).IsSameAs(_("Help")) )
1334             {
1335                 success = true;
1336                 ::InsertMenu(hmenu, i, MF_BYPOSITION | MF_POPUP | MF_STRING,
1337                              (UINT)subMenu, _("&Window"));
1338                 break;
1339             }
1340         }
1341
1342         if ( !success )
1343         {
1344             ::AppendMenu(hmenu, MF_POPUP, (UINT)subMenu, _("&Window"));
1345         }
1346     }
1347
1348     MDISetMenu(win, hmenu, subMenu);
1349 }
1350
1351 static void RemoveWindowMenu(wxWindow *win, WXHMENU menu)
1352 {
1353     HMENU hMenu = (HMENU)menu;
1354
1355     if ( hMenu )
1356     {
1357         wxChar buf[1024];
1358
1359         int N = ::GetMenuItemCount(hMenu);
1360         for ( int i = 0; i < N; i++ )
1361         {
1362             if ( !::GetMenuString(hMenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION) )
1363             {
1364                 // Ignore successful read of menu string with length 0 which
1365                 // occurs, for example, for a maximized MDI childs system menu
1366                 if ( ::GetLastError() != 0 )
1367                 {
1368                     wxLogLastError(wxT("GetMenuString"));
1369                 }
1370
1371                 continue;
1372             }
1373
1374             if ( wxStrcmp(buf, _("&Window")) == 0 )
1375             {
1376                 if ( !::RemoveMenu(hMenu, i, MF_BYPOSITION) )
1377                 {
1378                     wxLogLastError(wxT("RemoveMenu"));
1379                 }
1380
1381                 break;
1382             }
1383         }
1384     }
1385
1386     if ( win )
1387     {
1388         // we don't change the windows menu, but we update the main one
1389         MDISetMenu(win, hMenu, NULL);
1390     }
1391 }
1392
1393 static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam,
1394                               WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact)
1395 {
1396 #ifdef __WIN32__
1397     *activate = true;
1398     *hwndAct = (WXHWND)lParam;
1399     *hwndDeact = (WXHWND)wParam;
1400 #else // Win16
1401     *activate = (WXWORD)wParam;
1402     *hwndAct = (WXHWND)LOWORD(lParam);
1403     *hwndDeact = (WXHWND)HIWORD(lParam);
1404 #endif // Win32/Win16
1405 }
1406
1407 #endif
1408 // wxUSE_MDI_ARCHITECTURE && !defined(__WXUNIVERSAL__)
1409