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
 219   if ( !wxWindow::MSWCreate(wxMDIFrameClassName,
 220                             title,
 221                             pos, size,
 222                             msflags,
 223                             exflags) )
 224   {
 225       return false;
 226   }
 227
 228   wxModelessWindows.Append(this);
 229
 230   // unlike (almost?) all other windows, frames are created hidden
 231   m_isShown = false;
 232
 233   return true;
 234 }
 235
 236 wxMDIParentFrame::~wxMDIParentFrame()
 237 {
 238     DestroyChildren();
 239
 240     // already delete by DestroyChildren()
 241     m_frameToolBar = NULL;
 242     m_frameStatusBar = NULL;
 243
 244     if (m_windowMenu)
 245     {
 246         delete m_windowMenu;
 247         m_windowMenu = (wxMenu*) NULL;
 248     }
 249
 250     // the MDI frame menubar is not automatically deleted by Windows unlike for
 251     // the normal frames
 252     if ( m_hMenu )
 253     {
 254         ::DestroyMenu((HMENU)m_hMenu);
 255         m_hMenu = (WXHMENU)NULL;
 256     }
 257
 258     if ( m_clientWindow )
 259     {
 260         if ( m_clientWindow->MSWGetOldWndProc() )
 261             m_clientWindow->UnsubclassWin();
 262
 263         m_clientWindow->SetHWND(0);
 264         delete m_clientWindow;
 265     }
 266 }
 267
 268 #if wxUSE_MENUS_NATIVE
 269
 270 void wxMDIParentFrame::InternalSetMenuBar()
 271 {
 272     m_parentFrameActive = true;
 273
 274     InsertWindowMenu(GetClientWindow(), m_hMenu, GetMDIWindowMenu(this));
 275 }
 276
 277 #endif // wxUSE_MENUS_NATIVE
 278
 279 void wxMDIParentFrame::SetWindowMenu(wxMenu* menu)
 280 {
 281     if (m_windowMenu)
 282     {
 283         if (GetMenuBar())
 284         {
 285             // Remove old window menu
 286             RemoveWindowMenu(GetClientWindow(), m_hMenu);
 287         }
 288
 289         delete m_windowMenu;
 290         m_windowMenu = (wxMenu*) NULL;
 291     }
 292
 293     if (menu)
 294     {
 295         m_windowMenu = menu;
 296         if (GetMenuBar())
 297         {
 298             InsertWindowMenu(GetClientWindow(), m_hMenu,
 299                              GetHmenuOf(m_windowMenu));
 300         }
 301     }
 302 }
 303
 304 void wxMDIParentFrame::OnSize(wxSizeEvent&)
 305 {
 306     if ( GetClientWindow() )
 307     {
 308         int width, height;
 309         GetClientSize(&width, &height);
 310
 311         GetClientWindow()->SetSize(0, 0, width, height);
 312     }
 313 }
 314
 315 // Returns the active MDI child window
 316 wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const
 317 {
 318     HWND hWnd = (HWND)::SendMessage(GetWinHwnd(GetClientWindow()),
 319                                     WM_MDIGETACTIVE, 0, 0L);
 320     if ( hWnd == 0 )
 321         return NULL;
 322     else
 323         return (wxMDIChildFrame *)wxFindWinFromHandle((WXHWND) hWnd);
 324 }
 325
 326 // Create the client window class (don't Create the window, just return a new
 327 // class)
 328 wxMDIClientWindow *wxMDIParentFrame::OnCreateClient()
 329 {
 330     return new wxMDIClientWindow;
 331 }
 332
 333 // Responds to colour changes, and passes event on to children.
 334 void wxMDIParentFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
 335 {
 336     if ( m_clientWindow )
 337     {
 338         m_clientWindow->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
 339         m_clientWindow->Refresh();
 340     }
 341
 342     event.Skip();
 343 }
 344
 345 WXHICON wxMDIParentFrame::GetDefaultIcon() const
 346 {
 347     return (WXHICON)(wxSTD_MDIPARENTFRAME_ICON ? wxSTD_MDIPARENTFRAME_ICON
 348                                                : wxDEFAULT_MDIPARENTFRAME_ICON);
 349 }
 350
 351 // ---------------------------------------------------------------------------
 352 // MDI operations
 353 // ---------------------------------------------------------------------------
 354
 355 void wxMDIParentFrame::Cascade()
 356 {
 357     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDICASCADE, 0, 0);
 358 }
 359
 360 // TODO: add a direction argument (hor/vert)
 361 void wxMDIParentFrame::Tile()
 362 {
 363     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDITILE, MDITILE_HORIZONTAL, 0);
 364 }
 365
 366 void wxMDIParentFrame::ArrangeIcons()
 367 {
 368     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDIICONARRANGE, 0, 0);
 369 }
 370
 371 void wxMDIParentFrame::ActivateNext()
 372 {
 373     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 0);
 374 }
 375
 376 void wxMDIParentFrame::ActivatePrevious()
 377 {
 378     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 1);
 379 }
 380
 381 // ---------------------------------------------------------------------------
 382 // the MDI parent frame window proc
 383 // ---------------------------------------------------------------------------
 384
 385 long wxMDIParentFrame::MSWWindowProc(WXUINT message,
 386                                      WXWPARAM wParam,
 387                                      WXLPARAM lParam)
 388 {
 389     long rc = 0;
 390     bool processed = false;
 391
 392     switch ( message )
 393     {
 394         case WM_ACTIVATE:
 395             {
 396                 WXWORD state, minimized;
 397                 WXHWND hwnd;
 398                 UnpackActivate(wParam, lParam, &state, &minimized, &hwnd);
 399
 400                 processed = HandleActivate(state, minimized != 0, hwnd);
 401             }
 402             break;
 403
 404         case WM_COMMAND:
 405             {
 406                 WXWORD id, cmd;
 407                 WXHWND hwnd;
 408                 UnpackCommand(wParam, lParam, &id, &hwnd, &cmd);
 409
 410                 (void)HandleCommand(id, cmd, hwnd);
 411
 412                 // even if the frame didn't process it, there is no need to try it
 413                 // once again (i.e. call wxFrame::HandleCommand()) - we just dud it,
 414                 // so pretend we processed the message anyhow
 415                 processed = true;
 416             }
 417
 418             // always pass this message DefFrameProc(), otherwise MDI menu
 419             // commands (and sys commands - more surprizingly!) won't work
 420             MSWDefWindowProc(message, wParam, lParam);
 421             break;
 422
 423         case WM_CREATE:
 424             m_clientWindow = OnCreateClient();
 425             // Uses own style for client style
 426             if ( !m_clientWindow->CreateClient(this, GetWindowStyleFlag()) )
 427             {
 428                 wxLogMessage(_("Failed to create MDI parent frame."));
 429
 430                 rc = -1;
 431             }
 432
 433             processed = true;
 434             break;
 435
 436         case WM_ERASEBKGND:
 437             processed = true;
 438
 439             // we erase background ourselves
 440             rc = true;
 441             break;
 442
 443         case WM_MENUSELECT:
 444             {
 445                 WXWORD item, flags;
 446                 WXHMENU hmenu;
 447                 UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
 448
 449                 if ( m_parentFrameActive )
 450                 {
 451                     processed = HandleMenuSelect(item, flags, hmenu);
 452                 }
 453                 else if (m_currentChild)
 454                 {
 455                     processed = m_currentChild->
 456                         HandleMenuSelect(item, flags, hmenu);
 457                 }
 458             }
 459             break;
 460
 461         case WM_SIZE:
 462             // as we don't (usually) resize the MDI client to exactly fit the
 463             // client area (we put it below the toolbar, above statusbar &c),
 464             // we should not pass this one to DefFrameProc
 465             break;
 466     }
 467
 468     if ( !processed )
 469         rc = wxFrame::MSWWindowProc(message, wParam, lParam);
 470
 471     return rc;
 472 }
 473
 474 bool wxMDIParentFrame::HandleActivate(int state, bool minimized, WXHWND activate)
 475 {
 476     bool processed = false;
 477
 478     if ( wxWindow::HandleActivate(state, minimized, activate) )
 479     {
 480         // already processed
 481         processed = true;
 482     }
 483
 484     // If this window is an MDI parent, we must also send an OnActivate message
 485     // to the current child.
 486     if ( (m_currentChild != NULL) &&
 487          ((state == WA_ACTIVE) || (state == WA_CLICKACTIVE)) )
 488     {
 489         wxActivateEvent event(wxEVT_ACTIVATE, true, m_currentChild->GetId());
 490         event.SetEventObject( m_currentChild );
 491         if ( m_currentChild->GetEventHandler()->ProcessEvent(event) )
 492             processed = true;
 493     }
 494
 495     return processed;
 496 }
 497
 498 bool wxMDIParentFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd)
 499 {
 500     // In case it's e.g. a toolbar.
 501     if ( hwnd )
 502     {
 503         wxWindow *win = wxFindWinFromHandle(hwnd);
 504         if ( win )
 505             return win->MSWCommand(cmd, id);
 506     }
 507
 508     // is it one of standard MDI commands?
 509     WXWPARAM wParam = 0;
 510     WXLPARAM lParam = 0;
 511     int msg;
 512     switch ( id )
 513     {
 514         case IDM_WINDOWCASCADE:
 515             msg = WM_MDICASCADE;
 516             wParam = MDITILE_SKIPDISABLED;
 517             break;
 518
 519         case IDM_WINDOWTILEHOR:
 520             wParam |= MDITILE_HORIZONTAL;
 521             // fall through
 522
 523         case IDM_WINDOWTILEVERT:
 524             if ( !wParam )
 525                 wParam = MDITILE_VERTICAL;
 526             msg = WM_MDITILE;
 527             wParam |= MDITILE_SKIPDISABLED;
 528             break;
 529
 530         case IDM_WINDOWICONS:
 531             msg = WM_MDIICONARRANGE;
 532             break;
 533
 534         case IDM_WINDOWNEXT:
 535             msg = WM_MDINEXT;
 536             lParam = 0;         // next child
 537             break;
 538
 539         case IDM_WINDOWPREV:
 540             msg = WM_MDINEXT;
 541             lParam = 1;         // previous child
 542             break;
 543
 544         default:
 545             msg = 0;
 546     }
 547
 548     if ( msg )
 549     {
 550         ::SendMessage(GetWinHwnd(GetClientWindow()), msg, wParam, lParam);
 551
 552         return true;
 553     }
 554
 555     // FIXME VZ: what does this test do??
 556     if (id >= 0xF000)
 557     {
 558         return false; // Get WndProc to call default proc
 559     }
 560
 561     if ( IsMdiCommandId(id) )
 562     {
 563         wxWindowList::Node *node = GetChildren().GetFirst();
 564         while ( node )
 565         {
 566             wxWindow *child = node->GetData();
 567             if ( child->GetHWND() )
 568             {
 569                 long childId = wxGetWindowId(child->GetHWND());
 570                 if (childId == (long)id)
 571                 {
 572                     ::SendMessage( GetWinHwnd(GetClientWindow()),
 573                                    WM_MDIACTIVATE,
 574                                    (WPARAM)child->GetHWND(), 0);
 575                     return true;
 576                 }
 577             }
 578             node = node->GetNext();
 579         }
 580     }
 581     else if ( m_parentFrameActive )
 582     {
 583         return ProcessCommand(id);
 584     }
 585     else if ( m_currentChild )
 586     {
 587         return m_currentChild->HandleCommand(id, cmd, hwnd);
 588     }
 589     else
 590     {
 591         // this shouldn't happen because it means that our messages are being
 592         // lost (they're not sent to the parent frame nor to the children)
 593         wxFAIL_MSG(wxT("MDI parent frame is not active, yet there is no active MDI child?"));
 594     }
 595
 596     return false;
 597 }
 598
 599 long wxMDIParentFrame::MSWDefWindowProc(WXUINT message,
 600                                         WXWPARAM wParam,
 601                                         WXLPARAM lParam)
 602 {
 603     WXHWND clientWnd;
 604     if ( GetClientWindow() )
 605         clientWnd = GetClientWindow()->GetHWND();
 606     else
 607         clientWnd = 0;
 608
 609     return DefFrameProc(GetHwnd(), (HWND)clientWnd, message, wParam, lParam);
 610 }
 611
 612 bool wxMDIParentFrame::MSWTranslateMessage(WXMSG* msg)
 613 {
 614     MSG *pMsg = (MSG *)msg;
 615
 616     // first let the current child get it
 617     if ( m_currentChild && m_currentChild->GetHWND() &&
 618          m_currentChild->MSWTranslateMessage(msg) )
 619     {
 620         return true;
 621     }
 622
 623     // then try out accel table (will also check the menu accels)
 624     if ( wxFrame::MSWTranslateMessage(msg) )
 625     {
 626         return true;
 627     }
 628
 629     // finally, check for MDI specific built in accel keys
 630     if ( pMsg->message == WM_KEYDOWN || pMsg->message == WM_SYSKEYDOWN )
 631     {
 632         if ( ::TranslateMDISysAccel(GetWinHwnd(GetClientWindow()), pMsg))
 633             return true;
 634     }
 635
 636     return false;
 637 }
 638
 639 // ===========================================================================
 640 // wxMDIChildFrame
 641 // ===========================================================================
 642
 643 void wxMDIChildFrame::Init()
 644 {
 645     m_needsResize = true;
 646 }
 647
 648 bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
 649                              wxWindowID id,
 650                              const wxString& title,
 651                              const wxPoint& pos,
 652                              const wxSize& size,
 653                              long style,
 654                              const wxString& name)
 655 {
 656   SetName(name);
 657   wxWindowBase::Show(true); // MDI child frame starts off shown
 658
 659   if ( id > -1 )
 660     m_windowId = id;
 661   else
 662     m_windowId = (int)NewControlId();
 663
 664   if ( parent )
 665   {
 666       parent->AddChild(this);
 667   }
 668
 669   int x = pos.x;
 670   int y = pos.y;
 671   int width = size.x;
 672   int height = size.y;
 673
 674   MDICREATESTRUCT mcs;
 675
 676   mcs.szClass = style & wxNO_FULL_REPAINT_ON_RESIZE
 677                     ? wxMDIChildFrameClassNameNoRedraw
 678                     : wxMDIChildFrameClassName;
 679   mcs.szTitle = title;
 680   mcs.hOwner = wxGetInstance();
 681   if (x > -1)
 682       mcs.x = x;
 683   else
 684       mcs.x = CW_USEDEFAULT;
 685
 686   if (y > -1)
 687       mcs.y = y;
 688   else
 689       mcs.y = CW_USEDEFAULT;
 690
 691   if (width > -1)
 692       mcs.cx = width;
 693   else
 694       mcs.cx = CW_USEDEFAULT;
 695
 696   if (height > -1)
 697       mcs.cy = height;
 698   else
 699       mcs.cy = CW_USEDEFAULT;
 700
 701   DWORD msflags = WS_OVERLAPPED | WS_CLIPCHILDREN | WS_THICKFRAME | WS_VISIBLE ;
 702   if (style & wxMINIMIZE_BOX)
 703     msflags |= WS_MINIMIZEBOX;
 704   if (style & wxMAXIMIZE_BOX)
 705     msflags |= WS_MAXIMIZEBOX;
 706   if (style & wxTHICK_FRAME)
 707     msflags |= WS_THICKFRAME;
 708   if (style & wxSYSTEM_MENU)
 709     msflags |= WS_SYSMENU;
 710   if ((style & wxMINIMIZE) || (style & wxICONIZE))
 711     msflags |= WS_MINIMIZE;
 712   if (style & wxMAXIMIZE)
 713     msflags |= WS_MAXIMIZE;
 714   if (style & wxCAPTION)
 715     msflags |= WS_CAPTION;
 716
 717   mcs.style = msflags;
 718
 719   mcs.lParam = 0;
 720
 721   wxWindowCreationHook hook(this);
 722
 723   m_hWnd = (WXHWND)::SendMessage(GetWinHwnd(parent->GetClientWindow()),
 724                                  WM_MDICREATE, 0, (LONG)(LPSTR)&mcs);
 725
 726   wxAssociateWinWithHandle((HWND) GetHWND(), this);
 727
 728   wxModelessWindows.Append(this);
 729
 730   return true;
 731 }
 732
 733 wxMDIChildFrame::~wxMDIChildFrame()
 734 {
 735     DestroyChildren();
 736
 737     // already deleted by DestroyChildren()
 738     m_frameToolBar = NULL;
 739     m_frameStatusBar = NULL;
 740
 741     RemoveWindowMenu(NULL, m_hMenu);
 742
 743     MSWDestroyWindow();
 744 }
 745
 746 // Set the client size (i.e. leave the calculation of borders etc.
 747 // to wxWindows)
 748 void wxMDIChildFrame::DoSetClientSize(int width, int height)
 749 {
 750   HWND hWnd = GetHwnd();
 751
 752   RECT rect;
 753   ::GetClientRect(hWnd, &rect);
 754
 755   RECT rect2;
 756   GetWindowRect(hWnd, &rect2);
 757
 758   // Find the difference between the entire window (title bar and all)
 759   // and the client area; add this to the new client size to move the
 760   // window
 761   int actual_width = rect2.right - rect2.left - rect.right + width;
 762   int actual_height = rect2.bottom - rect2.top - rect.bottom + height;
 763
 764   if (GetStatusBar() && GetStatusBar()->IsShown())
 765   {
 766     int sx, sy;
 767     GetStatusBar()->GetSize(&sx, &sy);
 768     actual_height += sy;
 769   }
 770
 771   POINT point;
 772   point.x = rect2.left;
 773   point.y = rect2.top;
 774
 775   // If there's an MDI parent, must subtract the parent's top left corner
 776   // since MoveWindow moves relative to the parent
 777   wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent();
 778   ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
 779
 780   MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)true);
 781
 782   wxSizeEvent event(wxSize(width, height), m_windowId);
 783   event.SetEventObject( this );
 784   GetEventHandler()->ProcessEvent(event);
 785 }
 786
 787 void wxMDIChildFrame::DoGetPosition(int *x, int *y) const
 788 {
 789   RECT rect;
 790   GetWindowRect(GetHwnd(), &rect);
 791   POINT point;
 792   point.x = rect.left;
 793   point.y = rect.top;
 794
 795   // Since we now have the absolute screen coords,
 796   // if there's a parent we must subtract its top left corner
 797   wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent();
 798   ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
 799
 800   *x = point.x;
 801   *y = point.y;
 802 }
 803
 804 void wxMDIChildFrame::InternalSetMenuBar()
 805 {
 806     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 807
 808     InsertWindowMenu(parent->GetClientWindow(),
 809                      m_hMenu, GetMDIWindowMenu(parent));
 810
 811     parent->m_parentFrameActive = false;
 812 }
 813
 814 WXHICON wxMDIChildFrame::GetDefaultIcon() const
 815 {
 816     return (WXHICON)(wxSTD_MDICHILDFRAME_ICON ? wxSTD_MDICHILDFRAME_ICON
 817                                               : wxDEFAULT_MDICHILDFRAME_ICON);
 818 }
 819
 820 // ---------------------------------------------------------------------------
 821 // MDI operations
 822 // ---------------------------------------------------------------------------
 823
 824 void wxMDIChildFrame::Maximize(bool maximize)
 825 {
 826     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 827     if ( parent && parent->GetClientWindow() )
 828     {
 829         ::SendMessage(GetWinHwnd(parent->GetClientWindow()),
 830                       maximize ? WM_MDIMAXIMIZE : WM_MDIRESTORE,
 831                       (WPARAM)GetHwnd(), 0);
 832     }
 833 }
 834
 835 void wxMDIChildFrame::Restore()
 836 {
 837     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 838     if ( parent && parent->GetClientWindow() )
 839     {
 840         ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIRESTORE,
 841                       (WPARAM) GetHwnd(), 0);
 842     }
 843 }
 844
 845 void wxMDIChildFrame::Activate()
 846 {
 847     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 848     if ( parent && parent->GetClientWindow() )
 849     {
 850         ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIACTIVATE,
 851                       (WPARAM) GetHwnd(), 0);
 852     }
 853 }
 854
 855 // ---------------------------------------------------------------------------
 856 // MDI window proc and message handlers
 857 // ---------------------------------------------------------------------------
 858
 859 long wxMDIChildFrame::MSWWindowProc(WXUINT message,
 860                                     WXWPARAM wParam,
 861                                     WXLPARAM lParam)
 862 {
 863     long rc = 0;
 864     bool processed = false;
 865
 866     switch ( message )
 867     {
 868         case WM_COMMAND:
 869             {
 870                 WORD id, cmd;
 871                 WXHWND hwnd;
 872                 UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
 873                               &id, &hwnd, &cmd);
 874
 875                 processed = HandleCommand(id, cmd, (WXHWND)hwnd);
 876             }
 877             break;
 878
 879         case WM_GETMINMAXINFO:
 880             processed = HandleGetMinMaxInfo((MINMAXINFO *)lParam);
 881             break;
 882
 883         case WM_MDIACTIVATE:
 884             {
 885                 WXWORD act;
 886                 WXHWND hwndAct, hwndDeact;
 887                 UnpackMDIActivate(wParam, lParam, &act, &hwndAct, &hwndDeact);
 888
 889                 processed = HandleMDIActivate(act, hwndAct, hwndDeact);
 890             }
 891             // fall through
 892
 893         case WM_MOVE:
 894             // must pass WM_MOVE to DefMDIChildProc() to recalculate MDI client
 895             // scrollbars if necessary
 896
 897             // fall through
 898
 899         case WM_SIZE:
 900             // must pass WM_SIZE to DefMDIChildProc(), otherwise many weird
 901             // things happen
 902             MSWDefWindowProc(message, wParam, lParam);
 903             break;
 904
 905         case WM_SYSCOMMAND:
 906             // DefMDIChildProc handles SC_{NEXT/PREV}WINDOW here, so pass it
 907             // the message (the base class version does not)
 908             return MSWDefWindowProc(message, wParam, lParam);
 909
 910         case WM_WINDOWPOSCHANGING:
 911             processed = HandleWindowPosChanging((LPWINDOWPOS)lParam);
 912             break;
 913     }
 914
 915     if ( !processed )
 916         rc = wxFrame::MSWWindowProc(message, wParam, lParam);
 917
 918     return rc;
 919 }
 920
 921 bool wxMDIChildFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd)
 922 {
 923     // In case it's e.g. a toolbar.
 924     if ( hwnd )
 925     {
 926         wxWindow *win = wxFindWinFromHandle(hwnd);
 927         if (win)
 928             return win->MSWCommand(cmd, id);
 929     }
 930
 931     if (wxCurrentPopupMenu)
 932     {
 933         wxMenu *popupMenu = wxCurrentPopupMenu;
 934         wxCurrentPopupMenu = NULL;
 935         if (popupMenu->MSWCommand(cmd, id))
 936             return true;
 937     }
 938
 939     bool processed;
 940     if (GetMenuBar() && GetMenuBar()->FindItem(id))
 941     {
 942         processed = ProcessCommand(id);
 943     }
 944     else
 945     {
 946         processed = false;
 947     }
 948
 949     return processed;
 950 }
 951
 952 bool wxMDIChildFrame::HandleMDIActivate(long WXUNUSED(activate),
 953                                         WXHWND hwndAct,
 954                                         WXHWND hwndDeact)
 955 {
 956     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 957
 958     HMENU menuToSet = 0;
 959
 960     bool activated;
 961
 962     if ( m_hWnd == hwndAct )
 963     {
 964         activated = true;
 965         parent->m_currentChild = this;
 966
 967         HMENU child_menu = (HMENU)GetWinMenu();
 968         if ( child_menu )
 969         {
 970             parent->m_parentFrameActive = false;
 971
 972             menuToSet = child_menu;
 973         }
 974     }
 975     else if ( m_hWnd == hwndDeact )
 976     {
 977         wxASSERT_MSG( parent->m_currentChild == this,
 978                       wxT("can't deactivate MDI child which wasn't active!") );
 979
 980         activated = false;
 981         parent->m_currentChild = NULL;
 982
 983         HMENU parent_menu = (HMENU)parent->GetWinMenu();
 984
 985         // activate the the parent menu only when there is no other child
 986         // that has been activated
 987         if ( parent_menu && !hwndAct )
 988         {
 989             parent->m_parentFrameActive = true;
 990
 991             menuToSet = parent_menu;
 992         }
 993     }
 994     else
 995     {
 996         // we have nothing to do with it
 997         return false;
 998     }
 999
1000     if ( menuToSet )
1001     {
1002         MDISetMenu(parent->GetClientWindow(),
1003                    menuToSet, GetMDIWindowMenu(parent));
1004     }
1005
1006     wxActivateEvent event(wxEVT_ACTIVATE, activated, m_windowId);
1007     event.SetEventObject( this );
1008
1009     ResetWindowStyle((void *)NULL);
1010
1011     return GetEventHandler()->ProcessEvent(event);
1012 }
1013
1014 bool wxMDIChildFrame::HandleWindowPosChanging(void *pos)
1015 {
1016     WINDOWPOS *lpPos = (WINDOWPOS *)pos;
1017 #if defined(__WIN95__)
1018     if (!(lpPos->flags & SWP_NOSIZE))
1019     {
1020         RECT rectClient;
1021         DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
1022         DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
1023         if (ResetWindowStyle((void *) & rectClient) && (dwStyle & WS_MAXIMIZE))
1024         {
1025             ::AdjustWindowRectEx(&rectClient, dwStyle, false, dwExStyle);
1026             lpPos->x = rectClient.left;
1027             lpPos->y = rectClient.top;
1028             lpPos->cx = rectClient.right - rectClient.left;
1029             lpPos->cy = rectClient.bottom - rectClient.top;
1030         }
1031         wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent();
1032         if (pFrameWnd && pFrameWnd->GetToolBar() && pFrameWnd->GetToolBar()->IsShown())
1033         {
1034             pFrameWnd->GetToolBar()->Refresh();
1035         }
1036     }
1037 #endif // Win95
1038
1039     return false;
1040 }
1041
1042 bool wxMDIChildFrame::HandleGetMinMaxInfo(void *mmInfo)
1043 {
1044     MINMAXINFO *info = (MINMAXINFO *)mmInfo;
1045
1046     // let the default window proc calculate the size of MDI children
1047     // frames because it is based on the size of the MDI client window,
1048     // not on the values specified in wxWindow m_max variables
1049     bool processed = MSWDefWindowProc(WM_GETMINMAXINFO, 0, (LPARAM)mmInfo) != 0;
1050
1051     int minWidth = GetMinWidth(),
1052         minHeight = GetMinHeight();
1053
1054     // but allow GetSizeHints() to set the min size
1055     if ( minWidth != -1 )
1056     {
1057         info->ptMinTrackSize.x = minWidth;
1058
1059         processed = true;
1060     }
1061
1062     if ( minHeight != -1 )
1063     {
1064         info->ptMinTrackSize.y = minHeight;
1065
1066         processed = true;
1067     }
1068
1069     return true;
1070 }
1071
1072 // ---------------------------------------------------------------------------
1073 // MDI specific message translation/preprocessing
1074 // ---------------------------------------------------------------------------
1075
1076 long wxMDIChildFrame::MSWDefWindowProc(WXUINT message, WXUINT wParam, WXLPARAM lParam)
1077 {
1078     return DefMDIChildProc(GetHwnd(),
1079                            (UINT)message, (WPARAM)wParam, (LPARAM)lParam);
1080 }
1081
1082 bool wxMDIChildFrame::MSWTranslateMessage(WXMSG* msg)
1083 {
1084     return wxFrame::MSWTranslateMessage(msg);
1085 }
1086
1087 // ---------------------------------------------------------------------------
1088 // misc
1089 // ---------------------------------------------------------------------------
1090
1091 void wxMDIChildFrame::MSWDestroyWindow()
1092 {
1093     invalidHandle = GetHwnd();
1094
1095     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
1096
1097     // Must make sure this handle is invalidated (set to NULL) since all sorts
1098     // of things could happen after the child client is destroyed, but before
1099     // the wxFrame is destroyed.
1100
1101     HWND oldHandle = (HWND)GetHWND();
1102     SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIDESTROY,
1103                 (WPARAM)oldHandle, 0);
1104
1105     if (parent->GetActiveChild() == (wxMDIChildFrame*) NULL)
1106         ResetWindowStyle((void*) NULL);
1107
1108     invalidHandle = 0;
1109
1110     if (m_hMenu)
1111     {
1112         ::DestroyMenu((HMENU) m_hMenu);
1113         m_hMenu = 0;
1114     }
1115     wxRemoveHandleAssociation(this);
1116     m_hWnd = 0;
1117 }
1118
1119 // Change the client window's extended style so we don't get a client edge
1120 // style when a child is maximised (a double border looks silly.)
1121 bool wxMDIChildFrame::ResetWindowStyle(void *vrect)
1122 {
1123 #if defined(__WIN95__)
1124     RECT *rect = (RECT *)vrect;
1125     wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent();
1126     wxMDIChildFrame* pChild = pFrameWnd->GetActiveChild();
1127     if (!pChild || (pChild == this))
1128     {
1129         HWND hwndClient = GetWinHwnd(pFrameWnd->GetClientWindow());
1130         DWORD dwStyle = ::GetWindowLong(hwndClient, GWL_EXSTYLE);
1131
1132         // we want to test whether there is a maximized child, so just set
1133         // dwThisStyle to 0 if there is no child at all
1134         DWORD dwThisStyle = pChild
1135             ? ::GetWindowLong(GetWinHwnd(pChild), GWL_STYLE) : 0;
1136         DWORD dwNewStyle = dwStyle;
1137         if ( dwThisStyle & WS_MAXIMIZE )
1138             dwNewStyle &= ~(WS_EX_CLIENTEDGE);
1139         else
1140             dwNewStyle |= WS_EX_CLIENTEDGE;
1141
1142         if (dwStyle != dwNewStyle)
1143         {
1144             // force update of everything
1145             ::RedrawWindow(hwndClient, NULL, NULL,
1146                            RDW_INVALIDATE | RDW_ALLCHILDREN);
1147             ::SetWindowLong(hwndClient, GWL_EXSTYLE, dwNewStyle);
1148             ::SetWindowPos(hwndClient, NULL, 0, 0, 0, 0,
1149                            SWP_FRAMECHANGED | SWP_NOACTIVATE |
1150                            SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
1151                            SWP_NOCOPYBITS);
1152             if (rect)
1153                 ::GetClientRect(hwndClient, rect);
1154
1155             return true;
1156         }
1157     }
1158 #endif // Win95
1159
1160     return false;
1161 }
1162
1163 // ===========================================================================
1164 // wxMDIClientWindow: the window of predefined (by Windows) class which
1165 // contains the child frames
1166 // ===========================================================================
1167
1168 bool wxMDIClientWindow::CreateClient(wxMDIParentFrame *parent, long style)
1169 {
1170     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE);
1171
1172     CLIENTCREATESTRUCT ccs;
1173     m_windowStyle = style;
1174     m_parent = parent;
1175
1176     ccs.hWindowMenu = GetMDIWindowMenu(parent);
1177     ccs.idFirstChild = wxFIRST_MDI_CHILD;
1178
1179     DWORD msStyle = MDIS_ALLCHILDSTYLES | WS_VISIBLE | WS_CHILD |
1180                     WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
1181
1182     if ( style & wxHSCROLL )
1183         msStyle |= WS_HSCROLL;
1184     if ( style & wxVSCROLL )
1185         msStyle |= WS_VSCROLL;
1186
1187 #if defined(__WIN95__)
1188     DWORD exStyle = WS_EX_CLIENTEDGE;
1189 #else
1190     DWORD exStyle = 0;
1191 #endif
1192
1193     wxWindowCreationHook hook(this);
1194     m_hWnd = (WXHWND)::CreateWindowEx
1195                        (
1196                         exStyle,
1197                         wxT("MDICLIENT"),
1198                         NULL,
1199                         msStyle,
1200                         0, 0, 0, 0,
1201                         GetWinHwnd(parent),
1202                         NULL,
1203                         wxGetInstance(),
1204                         (LPSTR)(LPCLIENTCREATESTRUCT)&ccs);
1205     if ( !m_hWnd )
1206     {
1207         wxLogLastError(wxT("CreateWindowEx(MDI client)"));
1208
1209         return false;
1210     }
1211
1212     SubclassWin(m_hWnd);
1213
1214     return true;
1215 }
1216
1217 // Explicitly call default scroll behaviour
1218 void wxMDIClientWindow::OnScroll(wxScrollEvent& event)
1219 {
1220     // Note: for client windows, the scroll position is not set in
1221     // WM_HSCROLL, WM_VSCROLL, so we can't easily determine what
1222     // scroll position we're at.
1223     // This makes it hard to paint patterns or bitmaps in the background,
1224     // and have the client area scrollable as well.
1225
1226     if ( event.GetOrientation() == wxHORIZONTAL )
1227         m_scrollX = event.GetPosition(); // Always returns zero!
1228     else
1229         m_scrollY = event.GetPosition(); // Always returns zero!
1230
1231     event.Skip();
1232 }
1233
1234 void wxMDIClientWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1235 {
1236     // Try to fix a problem whereby if you show an MDI child frame, then reposition the
1237     // client area, you can end up with a non-refreshed portion in the client window
1238     // (see OGL studio sample). So check if the position is changed and if so,
1239     // redraw the MDI child frames.
1240
1241     wxPoint oldPos = GetPosition();
1242
1243     wxWindow::DoSetSize(x, y, width, height, sizeFlags);
1244
1245     wxPoint newPos = GetPosition();
1246
1247     if ((newPos.x != oldPos.x) || (newPos.y != oldPos.y))
1248     {
1249         if (GetParent())
1250         {
1251             wxWindowList::Node *node = GetParent()->GetChildren().GetFirst();
1252             while (node)
1253             {
1254                 wxWindow *child = node->GetData();
1255                 if (child->IsKindOf(CLASSINFO(wxMDIChildFrame)))
1256                 {
1257                    ::RedrawWindow(GetHwndOf(child),
1258                                   NULL,
1259                                   NULL,
1260                                   RDW_FRAME |
1261                                   RDW_ALLCHILDREN |
1262                                   RDW_INVALIDATE);
1263                 }
1264                 node = node->GetNext();
1265             }
1266         }
1267     }
1268 }
1269
1270 void wxMDIChildFrame::OnIdle(wxIdleEvent& event)
1271 {
1272     // MDI child frames get their WM_SIZE when they're constructed but at this
1273     // moment they don't have any children yet so all child windows will be
1274     // positioned incorrectly when they are added later - to fix this, we
1275     // generate an artificial size event here
1276     if ( m_needsResize )
1277     {
1278         m_needsResize = false; // avoid any possibility of recursion
1279
1280         SendSizeEvent();
1281     }
1282
1283     event.Skip();
1284 }
1285
1286 // ---------------------------------------------------------------------------
1287 // non member functions
1288 // ---------------------------------------------------------------------------
1289
1290 static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow)
1291 {
1292     ::SendMessage(GetWinHwnd(win), WM_MDISETMENU,
1293 #ifdef __WIN32__
1294                   (WPARAM)hmenuFrame, (LPARAM)hmenuWindow
1295 #else
1296                   0, MAKELPARAM(hmenuFrame, hmenuWindow)
1297 #endif
1298                  );
1299
1300     // update menu bar of the parent window
1301     wxWindow *parent = win->GetParent();
1302     wxCHECK_RET( parent, wxT("MDI client without parent frame? weird...") );
1303
1304 #ifndef __WIN16__
1305     ::SendMessage(GetWinHwnd(win), WM_MDIREFRESHMENU, 0, 0L);
1306 #endif
1307
1308     ::DrawMenuBar(GetWinHwnd(parent));
1309 }
1310
1311 static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu)
1312 {
1313     // Try to insert Window menu in front of Help, otherwise append it.
1314     HMENU hmenu = (HMENU)menu;
1315
1316     if (subMenu)
1317     {
1318         int N = GetMenuItemCount(hmenu);
1319         bool success = false;
1320         for ( int i = 0; i < N; i++ )
1321         {
1322             wxChar buf[256];
1323             int chars = GetMenuString(hmenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION);
1324             if ( chars == 0 )
1325             {
1326                 wxLogLastError(wxT("GetMenuString"));
1327
1328                 continue;
1329             }
1330
1331             if ( wxStripMenuCodes(wxString(buf)).IsSameAs(_("Help")) )
1332             {
1333                 success = true;
1334                 ::InsertMenu(hmenu, i, MF_BYPOSITION | MF_POPUP | MF_STRING,
1335                              (UINT)subMenu, _("&Window"));
1336                 break;
1337             }
1338         }
1339
1340         if ( !success )
1341         {
1342             ::AppendMenu(hmenu, MF_POPUP, (UINT)subMenu, _("&Window"));
1343         }
1344     }
1345
1346     MDISetMenu(win, hmenu, subMenu);
1347 }
1348
1349 static void RemoveWindowMenu(wxWindow *win, WXHMENU menu)
1350 {
1351     HMENU hMenu = (HMENU)menu;
1352
1353     if ( hMenu )
1354     {
1355         wxChar buf[1024];
1356
1357         int N = ::GetMenuItemCount(hMenu);
1358         for ( int i = 0; i < N; i++ )
1359         {
1360             if ( !::GetMenuString(hMenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION) )
1361             {
1362                 // Ignore successful read of menu string with length 0 which
1363                 // occurs, for example, for a maximized MDI childs system menu
1364                 if ( ::GetLastError() != 0 )
1365                 {
1366                     wxLogLastError(wxT("GetMenuString"));
1367                 }
1368
1369                 continue;
1370             }
1371
1372             if ( wxStrcmp(buf, _("&Window")) == 0 )
1373             {
1374                 if ( !::RemoveMenu(hMenu, i, MF_BYPOSITION) )
1375                 {
1376                     wxLogLastError(wxT("RemoveMenu"));
1377                 }
1378
1379                 break;
1380             }
1381         }
1382     }
1383
1384     if ( win )
1385     {
1386         // we don't change the windows menu, but we update the main one
1387         MDISetMenu(win, hMenu, NULL);
1388     }
1389 }
1390
1391 static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam,
1392                               WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact)
1393 {
1394 #ifdef __WIN32__
1395     *activate = true;
1396     *hwndAct = (WXHWND)lParam;
1397     *hwndDeact = (WXHWND)wParam;
1398 #else // Win16
1399     *activate = (WXWORD)wParam;
1400     *hwndAct = (WXHWND)LOWORD(lParam);
1401     *hwndDeact = (WXHWND)HIWORD(lParam);
1402 #endif // Win32/Win16
1403 }
1404
1405 #endif
1406 // wxUSE_MDI_ARCHITECTURE && !defined(__WXUNIVERSAL__)
1407