src/msw/mdi.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/mdi.cpp
   3 // Purpose:     MDI classes for wxMSW
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ===========================================================================
  13 // declarations
  14 // ===========================================================================
  15
  16 // ---------------------------------------------------------------------------
  17 // headers
  18 // ---------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "mdi.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #if wxUSE_MDI_ARCHITECTURE && !defined(__WXUNIVERSAL__)
  32
  33 #ifndef WX_PRECOMP
  34     #include "wx/setup.h"
  35     #include "wx/frame.h"
  36     #include "wx/menu.h"
  37     #include "wx/app.h"
  38     #include "wx/utils.h"
  39     #include "wx/dialog.h"
  40     #if wxUSE_STATUSBAR
  41         #include "wx/statusbr.h"
  42     #endif
  43     #include "wx/settings.h"
  44     #include "wx/intl.h"
  45     #include "wx/log.h"
  46 #endif
  47
  48 #include "wx/mdi.h"
  49 #include "wx/msw/private.h"
  50
  51 #if wxUSE_STATUSBAR && wxUSE_NATIVE_STATUSBAR
  52     #include "wx/msw/statbr95.h"
  53 #endif
  54
  55 #if wxUSE_TOOLBAR
  56     #include "wx/toolbar.h"
  57 #endif // wxUSE_TOOLBAR
  58
  59 #include <string.h>
  60
  61 // ---------------------------------------------------------------------------
  62 // global variables
  63 // ---------------------------------------------------------------------------
  64
  65 extern 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 extern void wxAssociateWinWithHandle(HWND hWnd, wxWindow *win);
  72 extern void wxRemoveHandleAssociation(wxWindow *win);
  73
  74 static HWND invalidHandle = 0;
  75
  76 // ---------------------------------------------------------------------------
  77 // constants
  78 // ---------------------------------------------------------------------------
  79
  80 static const int IDM_WINDOWTILE  = 4001;
  81 static const int IDM_WINDOWTILEHOR  = 4001;
  82 static const int IDM_WINDOWCASCADE = 4002;
  83 static const int IDM_WINDOWICONS = 4003;
  84 static const int IDM_WINDOWNEXT = 4004;
  85 static const int IDM_WINDOWTILEVERT = 4005;
  86 static const int IDM_WINDOWPREV = 4006;
  87
  88 // This range gives a maximum of 500 MDI children. Should be enough :-)
  89 static const int wxFIRST_MDI_CHILD = 4100;
  90 static const int wxLAST_MDI_CHILD = 4600;
  91
  92 // Status border dimensions
  93 static const int wxTHICK_LINE_BORDER = 3;
  94 static const int wxTHICK_LINE_WIDTH  = 1;
  95
  96 // ---------------------------------------------------------------------------
  97 // private functions
  98 // ---------------------------------------------------------------------------
  99
 100 // set the MDI menus (by sending the WM_MDISETMENU message) and update the menu
 101 // of the parent of win (which is supposed to be the MDI client window)
 102 static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow);
 103
 104 // insert the window menu (subMenu) into menu just before "Help" submenu or at
 105 // the very end if not found
 106 static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu);
 107
 108 // Remove the window menu
 109 static void RemoveWindowMenu(wxWindow *win, WXHMENU menu);
 110
 111 // is this an id of an MDI child?
 112 inline bool IsMdiCommandId(int id)
 113 {
 114     return (id >= wxFIRST_MDI_CHILD) && (id <= wxLAST_MDI_CHILD);
 115 }
 116
 117 // unpack the parameters of WM_MDIACTIVATE message
 118 static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam,
 119                               WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact);
 120
 121 // return the HMENU of the MDI menu
 122 static inline HMENU GetMDIWindowMenu(wxMDIParentFrame *frame)
 123 {
 124     wxMenu *menu = frame->GetWindowMenu();
 125     return menu ? GetHmenuOf(menu) : 0;
 126 }
 127
 128 // ===========================================================================
 129 // implementation
 130 // ===========================================================================
 131
 132 // ---------------------------------------------------------------------------
 133 // wxWin macros
 134 // ---------------------------------------------------------------------------
 135
 136 IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame, wxFrame)
 137 IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame, wxFrame)
 138 IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow, wxWindow)
 139
 140 BEGIN_EVENT_TABLE(wxMDIParentFrame, wxFrame)
 141     EVT_SIZE(wxMDIParentFrame::OnSize)
 142     EVT_SYS_COLOUR_CHANGED(wxMDIParentFrame::OnSysColourChanged)
 143 END_EVENT_TABLE()
 144
 145 BEGIN_EVENT_TABLE(wxMDIChildFrame, wxFrame)
 146     EVT_IDLE(wxMDIChildFrame::OnIdle)
 147 END_EVENT_TABLE()
 148
 149 BEGIN_EVENT_TABLE(wxMDIClientWindow, wxWindow)
 150     EVT_SCROLL(wxMDIClientWindow::OnScroll)
 151 END_EVENT_TABLE()
 152
 153 // ===========================================================================
 154 // wxMDIParentFrame: the frame which contains the client window which manages
 155 // the children
 156 // ===========================================================================
 157
 158 wxMDIParentFrame::wxMDIParentFrame()
 159 {
 160     m_clientWindow = NULL;
 161     m_currentChild = NULL;
 162     m_windowMenu = (wxMenu*) NULL;
 163     m_parentFrameActive = true;
 164 }
 165
 166 bool wxMDIParentFrame::Create(wxWindow *parent,
 167                               wxWindowID id,
 168                               const wxString& title,
 169                               const wxPoint& pos,
 170                               const wxSize& size,
 171                               long style,
 172                               const wxString& name)
 173 {
 174   m_clientWindow = NULL;
 175   m_currentChild = NULL;
 176
 177   // this style can be used to prevent a window from having the standard MDI
 178   // "Window" menu
 179   if ( style & wxFRAME_NO_WINDOW_MENU )
 180   {
 181       m_windowMenu = (wxMenu *)NULL;
 182   }
 183   else // normal case: we have the window menu, so construct it
 184   {
 185       m_windowMenu = new wxMenu;
 186
 187       m_windowMenu->Append(IDM_WINDOWCASCADE, _("&Cascade"));
 188       m_windowMenu->Append(IDM_WINDOWTILEHOR, _("Tile &Horizontally"));
 189       m_windowMenu->Append(IDM_WINDOWTILEVERT, _("Tile &Vertically"));
 190       m_windowMenu->AppendSeparator();
 191       m_windowMenu->Append(IDM_WINDOWICONS, _("&Arrange Icons"));
 192       m_windowMenu->Append(IDM_WINDOWNEXT, _("&Next"));
 193       m_windowMenu->Append(IDM_WINDOWPREV, _("&Previous"));
 194   }
 195
 196   m_parentFrameActive = true;
 197
 198   if (!parent)
 199     wxTopLevelWindows.Append(this);
 200
 201   SetName(name);
 202   m_windowStyle = style;
 203
 204   if ( parent )
 205       parent->AddChild(this);
 206
 207   if ( id > -1 )
 208     m_windowId = id;
 209   else
 210     m_windowId = NewControlId();
 211
 212   WXDWORD exflags;
 213   WXDWORD msflags = MSWGetCreateWindowFlags(&exflags);
 214   msflags &= ~WS_VSCROLL;
 215   msflags &= ~WS_HSCROLL;
 216
 217   if ( !wxWindow::MSWCreate(wxMDIFrameClassName,
 218                             title,
 219                             pos, size,
 220                             msflags,
 221                             exflags) )
 222   {
 223       return false;
 224   }
 225
 226   wxModelessWindows.Append(this);
 227
 228   // unlike (almost?) all other windows, frames are created hidden
 229   m_isShown = false;
 230
 231   return true;
 232 }
 233
 234 wxMDIParentFrame::~wxMDIParentFrame()
 235 {
 236     // see comment in ~wxMDIChildFrame
 237 #if wxUSE_TOOLBAR
 238     m_frameToolBar = NULL;
 239 #endif
 240     m_frameStatusBar = NULL;
 241
 242     DestroyChildren();
 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     // we don't have any standard icons (any more)
 348     return (WXHICON)0;
 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 did 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 surprisingly!) 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::compatibility_iterator 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 & wxFULL_REPAINT_ON_RESIZE
 677                     ? wxMDIChildFrameClassName
 678                     : wxMDIChildFrameClassNameNoRedraw;
 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_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     // will be destroyed by DestroyChildren() but reset them before calling it
 736     // to avoid using dangling pointers if a callback comes in the meanwhile
 737 #if wxUSE_TOOLBAR
 738     m_frameToolBar = NULL;
 739 #endif
 740     m_frameStatusBar = NULL;
 741
 742     DestroyChildren();
 743
 744     RemoveWindowMenu(NULL, m_hMenu);
 745
 746     MSWDestroyWindow();
 747 }
 748
 749 // Set the client size (i.e. leave the calculation of borders etc.
 750 // to wxWindows)
 751 void wxMDIChildFrame::DoSetClientSize(int width, int height)
 752 {
 753   HWND hWnd = GetHwnd();
 754
 755   RECT rect;
 756   ::GetClientRect(hWnd, &rect);
 757
 758   RECT rect2;
 759   GetWindowRect(hWnd, &rect2);
 760
 761   // Find the difference between the entire window (title bar and all)
 762   // and the client area; add this to the new client size to move the
 763   // window
 764   int actual_width = rect2.right - rect2.left - rect.right + width;
 765   int actual_height = rect2.bottom - rect2.top - rect.bottom + height;
 766
 767   if (GetStatusBar() && GetStatusBar()->IsShown())
 768   {
 769     int sx, sy;
 770     GetStatusBar()->GetSize(&sx, &sy);
 771     actual_height += sy;
 772   }
 773
 774   POINT point;
 775   point.x = rect2.left;
 776   point.y = rect2.top;
 777
 778   // If there's an MDI parent, must subtract the parent's top left corner
 779   // since MoveWindow moves relative to the parent
 780   wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent();
 781   ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
 782
 783   MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)true);
 784
 785   wxSizeEvent event(wxSize(width, height), m_windowId);
 786   event.SetEventObject( this );
 787   GetEventHandler()->ProcessEvent(event);
 788 }
 789
 790 void wxMDIChildFrame::DoGetPosition(int *x, int *y) const
 791 {
 792   RECT rect;
 793   GetWindowRect(GetHwnd(), &rect);
 794   POINT point;
 795   point.x = rect.left;
 796   point.y = rect.top;
 797
 798   // Since we now have the absolute screen coords,
 799   // if there's a parent we must subtract its top left corner
 800   wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent();
 801   ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
 802
 803   *x = point.x;
 804   *y = point.y;
 805 }
 806
 807 void wxMDIChildFrame::InternalSetMenuBar()
 808 {
 809     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 810
 811     InsertWindowMenu(parent->GetClientWindow(),
 812                      m_hMenu, GetMDIWindowMenu(parent));
 813
 814     parent->m_parentFrameActive = false;
 815 }
 816
 817 WXHICON wxMDIChildFrame::GetDefaultIcon() const
 818 {
 819     // we don't have any standard icons (any more)
 820     return (WXHICON)0;
 821 }
 822
 823 // ---------------------------------------------------------------------------
 824 // MDI operations
 825 // ---------------------------------------------------------------------------
 826
 827 void wxMDIChildFrame::Maximize(bool maximize)
 828 {
 829     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 830     if ( parent && parent->GetClientWindow() )
 831     {
 832         ::SendMessage(GetWinHwnd(parent->GetClientWindow()),
 833                       maximize ? WM_MDIMAXIMIZE : WM_MDIRESTORE,
 834                       (WPARAM)GetHwnd(), 0);
 835     }
 836 }
 837
 838 void wxMDIChildFrame::Restore()
 839 {
 840     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 841     if ( parent && parent->GetClientWindow() )
 842     {
 843         ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIRESTORE,
 844                       (WPARAM) GetHwnd(), 0);
 845     }
 846 }
 847
 848 void wxMDIChildFrame::Activate()
 849 {
 850     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 851     if ( parent && parent->GetClientWindow() )
 852     {
 853         ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIACTIVATE,
 854                       (WPARAM) GetHwnd(), 0);
 855     }
 856 }
 857
 858 // ---------------------------------------------------------------------------
 859 // MDI window proc and message handlers
 860 // ---------------------------------------------------------------------------
 861
 862 long wxMDIChildFrame::MSWWindowProc(WXUINT message,
 863                                     WXWPARAM wParam,
 864                                     WXLPARAM lParam)
 865 {
 866     long rc = 0;
 867     bool processed = false;
 868
 869     switch ( message )
 870     {
 871         case WM_COMMAND:
 872             {
 873                 WORD id, cmd;
 874                 WXHWND hwnd;
 875                 UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
 876                               &id, &hwnd, &cmd);
 877
 878                 processed = HandleCommand(id, cmd, (WXHWND)hwnd);
 879             }
 880             break;
 881
 882         case WM_GETMINMAXINFO:
 883             processed = HandleGetMinMaxInfo((MINMAXINFO *)lParam);
 884             break;
 885
 886         case WM_MDIACTIVATE:
 887             {
 888                 WXWORD act;
 889                 WXHWND hwndAct, hwndDeact;
 890                 UnpackMDIActivate(wParam, lParam, &act, &hwndAct, &hwndDeact);
 891
 892                 processed = HandleMDIActivate(act, hwndAct, hwndDeact);
 893             }
 894             // fall through
 895
 896         case WM_MOVE:
 897             // must pass WM_MOVE to DefMDIChildProc() to recalculate MDI client
 898             // scrollbars if necessary
 899
 900             // fall through
 901
 902         case WM_SIZE:
 903             // must pass WM_SIZE to DefMDIChildProc(), otherwise many weird
 904             // things happen
 905             MSWDefWindowProc(message, wParam, lParam);
 906             break;
 907
 908         case WM_SYSCOMMAND:
 909             // DefMDIChildProc handles SC_{NEXT/PREV}WINDOW here, so pass it
 910             // the message (the base class version does not)
 911             return MSWDefWindowProc(message, wParam, lParam);
 912
 913         case WM_WINDOWPOSCHANGING:
 914             processed = HandleWindowPosChanging((LPWINDOWPOS)lParam);
 915             break;
 916     }
 917
 918     if ( !processed )
 919         rc = wxFrame::MSWWindowProc(message, wParam, lParam);
 920
 921     return rc;
 922 }
 923
 924 bool wxMDIChildFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd)
 925 {
 926     // In case it's e.g. a toolbar.
 927     if ( hwnd )
 928     {
 929         wxWindow *win = wxFindWinFromHandle(hwnd);
 930         if (win)
 931             return win->MSWCommand(cmd, id);
 932     }
 933
 934     if (wxCurrentPopupMenu)
 935     {
 936         wxMenu *popupMenu = wxCurrentPopupMenu;
 937         wxCurrentPopupMenu = NULL;
 938         if (popupMenu->MSWCommand(cmd, id))
 939             return true;
 940     }
 941
 942     bool processed;
 943     if (GetMenuBar() && GetMenuBar()->FindItem(id))
 944     {
 945         processed = ProcessCommand(id);
 946     }
 947     else
 948     {
 949         processed = false;
 950     }
 951
 952     return processed;
 953 }
 954
 955 bool wxMDIChildFrame::HandleMDIActivate(long WXUNUSED(activate),
 956                                         WXHWND hwndAct,
 957                                         WXHWND hwndDeact)
 958 {
 959     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 960
 961     HMENU menuToSet = 0;
 962
 963     bool activated;
 964
 965     if ( m_hWnd == hwndAct )
 966     {
 967         activated = true;
 968         parent->m_currentChild = this;
 969
 970         HMENU child_menu = (HMENU)GetWinMenu();
 971         if ( child_menu )
 972         {
 973             parent->m_parentFrameActive = false;
 974
 975             menuToSet = child_menu;
 976         }
 977     }
 978     else if ( m_hWnd == hwndDeact )
 979     {
 980         wxASSERT_MSG( parent->m_currentChild == this,
 981                       wxT("can't deactivate MDI child which wasn't active!") );
 982
 983         activated = false;
 984         parent->m_currentChild = NULL;
 985
 986         HMENU parent_menu = (HMENU)parent->GetWinMenu();
 987
 988         // activate the the parent menu only when there is no other child
 989         // that has been activated
 990         if ( parent_menu && !hwndAct )
 991         {
 992             parent->m_parentFrameActive = true;
 993
 994             menuToSet = parent_menu;
 995         }
 996     }
 997     else
 998     {
 999         // we have nothing to do with it
1000         return false;
1001     }
1002
1003     if ( menuToSet )
1004     {
1005         MDISetMenu(parent->GetClientWindow(),
1006                    menuToSet, GetMDIWindowMenu(parent));
1007     }
1008
1009     wxActivateEvent event(wxEVT_ACTIVATE, activated, m_windowId);
1010     event.SetEventObject( this );
1011
1012     ResetWindowStyle((void *)NULL);
1013
1014     return GetEventHandler()->ProcessEvent(event);
1015 }
1016
1017 bool wxMDIChildFrame::HandleWindowPosChanging(void *pos)
1018 {
1019     WINDOWPOS *lpPos = (WINDOWPOS *)pos;
1020 #if defined(__WIN95__)
1021     if (!(lpPos->flags & SWP_NOSIZE))
1022     {
1023         RECT rectClient;
1024         DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
1025         DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
1026         if (ResetWindowStyle((void *) & rectClient) && (dwStyle & WS_MAXIMIZE))
1027         {
1028             ::AdjustWindowRectEx(&rectClient, dwStyle, false, dwExStyle);
1029             lpPos->x = rectClient.left;
1030             lpPos->y = rectClient.top;
1031             lpPos->cx = rectClient.right - rectClient.left;
1032             lpPos->cy = rectClient.bottom - rectClient.top;
1033         }
1034 #if wxUSE_TOOLBAR
1035         wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent();
1036         if (pFrameWnd && pFrameWnd->GetToolBar() && pFrameWnd->GetToolBar()->IsShown())
1037         {
1038             pFrameWnd->GetToolBar()->Refresh();
1039         }
1040 #endif
1041     }
1042 #endif // Win95
1043
1044     return false;
1045 }
1046
1047 bool wxMDIChildFrame::HandleGetMinMaxInfo(void *mmInfo)
1048 {
1049     MINMAXINFO *info = (MINMAXINFO *)mmInfo;
1050
1051     // let the default window proc calculate the size of MDI children
1052     // frames because it is based on the size of the MDI client window,
1053     // not on the values specified in wxWindow m_max variables
1054     bool processed = MSWDefWindowProc(WM_GETMINMAXINFO, 0, (LPARAM)mmInfo) != 0;
1055
1056     int minWidth = GetMinWidth(),
1057         minHeight = GetMinHeight();
1058
1059     // but allow GetSizeHints() to set the min size
1060     if ( minWidth != -1 )
1061     {
1062         info->ptMinTrackSize.x = minWidth;
1063
1064         processed = true;
1065     }
1066
1067     if ( minHeight != -1 )
1068     {
1069         info->ptMinTrackSize.y = minHeight;
1070
1071         processed = true;
1072     }
1073
1074     return processed;
1075 }
1076
1077 // ---------------------------------------------------------------------------
1078 // MDI specific message translation/preprocessing
1079 // ---------------------------------------------------------------------------
1080
1081 long wxMDIChildFrame::MSWDefWindowProc(WXUINT message, WXUINT wParam, WXLPARAM lParam)
1082 {
1083     return DefMDIChildProc(GetHwnd(),
1084                            (UINT)message, (WPARAM)wParam, (LPARAM)lParam);
1085 }
1086
1087 bool wxMDIChildFrame::MSWTranslateMessage(WXMSG* msg)
1088 {
1089     return wxFrame::MSWTranslateMessage(msg);
1090 }
1091
1092 // ---------------------------------------------------------------------------
1093 // misc
1094 // ---------------------------------------------------------------------------
1095
1096 void wxMDIChildFrame::MSWDestroyWindow()
1097 {
1098     invalidHandle = GetHwnd();
1099
1100     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
1101
1102     // Must make sure this handle is invalidated (set to NULL) since all sorts
1103     // of things could happen after the child client is destroyed, but before
1104     // the wxFrame is destroyed.
1105
1106     HWND oldHandle = (HWND)GetHWND();
1107     SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIDESTROY,
1108                 (WPARAM)oldHandle, 0);
1109
1110     if (parent->GetActiveChild() == (wxMDIChildFrame*) NULL)
1111         ResetWindowStyle((void*) NULL);
1112
1113     invalidHandle = 0;
1114
1115     if (m_hMenu)
1116     {
1117         ::DestroyMenu((HMENU) m_hMenu);
1118         m_hMenu = 0;
1119     }
1120     wxRemoveHandleAssociation(this);
1121     m_hWnd = 0;
1122 }
1123
1124 // Change the client window's extended style so we don't get a client edge
1125 // style when a child is maximised (a double border looks silly.)
1126 bool wxMDIChildFrame::ResetWindowStyle(void *vrect)
1127 {
1128 #if defined(__WIN95__)
1129     RECT *rect = (RECT *)vrect;
1130     wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent();
1131     wxMDIChildFrame* pChild = pFrameWnd->GetActiveChild();
1132     if (!pChild || (pChild == this))
1133     {
1134         HWND hwndClient = GetWinHwnd(pFrameWnd->GetClientWindow());
1135         DWORD dwStyle = ::GetWindowLong(hwndClient, GWL_EXSTYLE);
1136
1137         // we want to test whether there is a maximized child, so just set
1138         // dwThisStyle to 0 if there is no child at all
1139         DWORD dwThisStyle = pChild
1140             ? ::GetWindowLong(GetWinHwnd(pChild), GWL_STYLE) : 0;
1141         DWORD dwNewStyle = dwStyle;
1142         if ( dwThisStyle & WS_MAXIMIZE )
1143             dwNewStyle &= ~(WS_EX_CLIENTEDGE);
1144         else
1145             dwNewStyle |= WS_EX_CLIENTEDGE;
1146
1147         if (dwStyle != dwNewStyle)
1148         {
1149             // force update of everything
1150             ::RedrawWindow(hwndClient, NULL, NULL,
1151                            RDW_INVALIDATE | RDW_ALLCHILDREN);
1152             ::SetWindowLong(hwndClient, GWL_EXSTYLE, dwNewStyle);
1153             ::SetWindowPos(hwndClient, NULL, 0, 0, 0, 0,
1154                            SWP_FRAMECHANGED | SWP_NOACTIVATE |
1155                            SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
1156                            SWP_NOCOPYBITS);
1157             if (rect)
1158                 ::GetClientRect(hwndClient, rect);
1159
1160             return true;
1161         }
1162     }
1163 #endif // Win95
1164
1165     return false;
1166 }
1167
1168 // ===========================================================================
1169 // wxMDIClientWindow: the window of predefined (by Windows) class which
1170 // contains the child frames
1171 // ===========================================================================
1172
1173 bool wxMDIClientWindow::CreateClient(wxMDIParentFrame *parent, long style)
1174 {
1175     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE);
1176
1177     CLIENTCREATESTRUCT ccs;
1178     m_windowStyle = style;
1179     m_parent = parent;
1180
1181     ccs.hWindowMenu = GetMDIWindowMenu(parent);
1182     ccs.idFirstChild = wxFIRST_MDI_CHILD;
1183
1184     DWORD msStyle = MDIS_ALLCHILDSTYLES | WS_VISIBLE | WS_CHILD |
1185                     WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
1186
1187     if ( style & wxHSCROLL )
1188         msStyle |= WS_HSCROLL;
1189     if ( style & wxVSCROLL )
1190         msStyle |= WS_VSCROLL;
1191
1192 #if defined(__WIN95__)
1193     DWORD exStyle = WS_EX_CLIENTEDGE;
1194 #else
1195     DWORD exStyle = 0;
1196 #endif
1197
1198     wxWindowCreationHook hook(this);
1199     m_hWnd = (WXHWND)::CreateWindowEx
1200                        (
1201                         exStyle,
1202                         wxT("MDICLIENT"),
1203                         NULL,
1204                         msStyle,
1205                         0, 0, 0, 0,
1206                         GetWinHwnd(parent),
1207                         NULL,
1208                         wxGetInstance(),
1209                         (LPSTR)(LPCLIENTCREATESTRUCT)&ccs);
1210     if ( !m_hWnd )
1211     {
1212         wxLogLastError(wxT("CreateWindowEx(MDI client)"));
1213
1214         return false;
1215     }
1216
1217     SubclassWin(m_hWnd);
1218
1219     return true;
1220 }
1221
1222 // Explicitly call default scroll behaviour
1223 void wxMDIClientWindow::OnScroll(wxScrollEvent& event)
1224 {
1225     // Note: for client windows, the scroll position is not set in
1226     // WM_HSCROLL, WM_VSCROLL, so we can't easily determine what
1227     // scroll position we're at.
1228     // This makes it hard to paint patterns or bitmaps in the background,
1229     // and have the client area scrollable as well.
1230
1231     if ( event.GetOrientation() == wxHORIZONTAL )
1232         m_scrollX = event.GetPosition(); // Always returns zero!
1233     else
1234         m_scrollY = event.GetPosition(); // Always returns zero!
1235
1236     event.Skip();
1237 }
1238
1239 void wxMDIClientWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1240 {
1241     // Try to fix a problem whereby if you show an MDI child frame, then reposition the
1242     // client area, you can end up with a non-refreshed portion in the client window
1243     // (see OGL studio sample). So check if the position is changed and if so,
1244     // redraw the MDI child frames.
1245
1246     wxPoint oldPos = GetPosition();
1247
1248     wxWindow::DoSetSize(x, y, width, height, sizeFlags);
1249
1250     wxPoint newPos = GetPosition();
1251
1252     if ((newPos.x != oldPos.x) || (newPos.y != oldPos.y))
1253     {
1254         if (GetParent())
1255         {
1256             wxWindowList::compatibility_iterator node = GetParent()->GetChildren().GetFirst();
1257             while (node)
1258             {
1259                 wxWindow *child = node->GetData();
1260                 if (child->IsKindOf(CLASSINFO(wxMDIChildFrame)))
1261                 {
1262                    ::RedrawWindow(GetHwndOf(child),
1263                                   NULL,
1264                                   NULL,
1265                                   RDW_FRAME |
1266                                   RDW_ALLCHILDREN |
1267                                   RDW_INVALIDATE);
1268                 }
1269                 node = node->GetNext();
1270             }
1271         }
1272     }
1273 }
1274
1275 void wxMDIChildFrame::OnIdle(wxIdleEvent& event)
1276 {
1277     // MDI child frames get their WM_SIZE when they're constructed but at this
1278     // moment they don't have any children yet so all child windows will be
1279     // positioned incorrectly when they are added later - to fix this, we
1280     // generate an artificial size event here
1281     if ( m_needsResize )
1282     {
1283         m_needsResize = false; // avoid any possibility of recursion
1284
1285         SendSizeEvent();
1286     }
1287
1288     event.Skip();
1289 }
1290
1291 // ---------------------------------------------------------------------------
1292 // non member functions
1293 // ---------------------------------------------------------------------------
1294
1295 static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow)
1296 {
1297     ::SendMessage(GetWinHwnd(win), WM_MDISETMENU,
1298 #ifdef __WIN32__
1299                   (WPARAM)hmenuFrame, (LPARAM)hmenuWindow
1300 #else
1301                   0, MAKELPARAM(hmenuFrame, hmenuWindow)
1302 #endif
1303                  );
1304
1305     // update menu bar of the parent window
1306     wxWindow *parent = win->GetParent();
1307     wxCHECK_RET( parent, wxT("MDI client without parent frame? weird...") );
1308
1309 #ifndef __WIN16__
1310     ::SendMessage(GetWinHwnd(win), WM_MDIREFRESHMENU, 0, 0L);
1311 #endif
1312
1313     ::DrawMenuBar(GetWinHwnd(parent));
1314 }
1315
1316 static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu)
1317 {
1318     // Try to insert Window menu in front of Help, otherwise append it.
1319     HMENU hmenu = (HMENU)menu;
1320
1321     if (subMenu)
1322     {
1323         int N = GetMenuItemCount(hmenu);
1324         bool success = false;
1325         for ( int i = 0; i < N; i++ )
1326         {
1327             wxChar buf[256];
1328             int chars = GetMenuString(hmenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION);
1329             if ( chars == 0 )
1330             {
1331                 wxLogLastError(wxT("GetMenuString"));
1332
1333                 continue;
1334             }
1335
1336             if ( wxStripMenuCodes(wxString(buf)).IsSameAs(_("Help")) )
1337             {
1338                 success = true;
1339                 ::InsertMenu(hmenu, i, MF_BYPOSITION | MF_POPUP | MF_STRING,
1340                              (UINT)subMenu, _("&Window"));
1341                 break;
1342             }
1343         }
1344
1345         if ( !success )
1346         {
1347             ::AppendMenu(hmenu, MF_POPUP, (UINT)subMenu, _("&Window"));
1348         }
1349     }
1350
1351     MDISetMenu(win, hmenu, subMenu);
1352 }
1353
1354 static void RemoveWindowMenu(wxWindow *win, WXHMENU menu)
1355 {
1356     HMENU hMenu = (HMENU)menu;
1357
1358     if ( hMenu )
1359     {
1360         wxChar buf[1024];
1361
1362         int N = ::GetMenuItemCount(hMenu);
1363         for ( int i = 0; i < N; i++ )
1364         {
1365             if ( !::GetMenuString(hMenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION) )
1366             {
1367                 // Ignore successful read of menu string with length 0 which
1368                 // occurs, for example, for a maximized MDI childs system menu
1369                 if ( ::GetLastError() != 0 )
1370                 {
1371                     wxLogLastError(wxT("GetMenuString"));
1372                 }
1373
1374                 continue;
1375             }
1376
1377             if ( wxStrcmp(buf, _("&Window")) == 0 )
1378             {
1379                 if ( !::RemoveMenu(hMenu, i, MF_BYPOSITION) )
1380                 {
1381                     wxLogLastError(wxT("RemoveMenu"));
1382                 }
1383
1384                 break;
1385             }
1386         }
1387     }
1388
1389     if ( win )
1390     {
1391         // we don't change the windows menu, but we update the main one
1392         MDISetMenu(win, hMenu, NULL);
1393     }
1394 }
1395
1396 static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam,
1397                               WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact)
1398 {
1399 #ifdef __WIN32__
1400     *activate = true;
1401     *hwndAct = (WXHWND)lParam;
1402     *hwndDeact = (WXHWND)wParam;
1403 #else // Win16
1404     *activate = (WXWORD)wParam;
1405     *hwndAct = (WXHWND)LOWORD(lParam);
1406     *hwndDeact = (WXHWND)HIWORD(lParam);
1407 #endif // Win32/Win16
1408 }
1409
1410 #endif
1411 // wxUSE_MDI_ARCHITECTURE && !defined(__WXUNIVERSAL__)
1412