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 wxMenu *wxCurrentPopupMenu;
  66
  67 extern const wxChar *wxMDIFrameClassName;   // from app.cpp
  68 extern const wxChar *wxMDIChildFrameClassName;
  69 extern const wxChar *wxMDIChildFrameClassNameNoRedraw;
  70 extern void wxAssociateWinWithHandle(HWND hWnd, wxWindow *win);
  71 extern void wxRemoveHandleAssociation(wxWindow *win);
  72
  73 static HWND invalidHandle = 0;
  74
  75 // ---------------------------------------------------------------------------
  76 // constants
  77 // ---------------------------------------------------------------------------
  78
  79 static const int IDM_WINDOWTILE  = 4001;
  80 static const int IDM_WINDOWTILEHOR  = 4001;
  81 static const int IDM_WINDOWCASCADE = 4002;
  82 static const int IDM_WINDOWICONS = 4003;
  83 static const int IDM_WINDOWNEXT = 4004;
  84 static const int IDM_WINDOWTILEVERT = 4005;
  85 static const int IDM_WINDOWPREV = 4006;
  86
  87 // This range gives a maximum of 500 MDI children. Should be enough :-)
  88 static const int wxFIRST_MDI_CHILD = 4100;
  89 static const int wxLAST_MDI_CHILD = 4600;
  90
  91 // Status border dimensions
  92 static const int wxTHICK_LINE_BORDER = 3;
  93 static const int wxTHICK_LINE_WIDTH  = 1;
  94
  95 // ---------------------------------------------------------------------------
  96 // private functions
  97 // ---------------------------------------------------------------------------
  98
  99 // set the MDI menus (by sending the WM_MDISETMENU message) and update the menu
 100 // of the parent of win (which is supposed to be the MDI client window)
 101 static void MDISetMenu(wxWindow *win, HMENU hmenuFrame, HMENU hmenuWindow);
 102
 103 // insert the window menu (subMenu) into menu just before "Help" submenu or at
 104 // the very end if not found
 105 static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu);
 106
 107 // Remove the window menu
 108 static void RemoveWindowMenu(wxWindow *win, WXHMENU menu);
 109
 110 // is this an id of an MDI child?
 111 inline bool IsMdiCommandId(int id)
 112 {
 113     return (id >= wxFIRST_MDI_CHILD) && (id <= wxLAST_MDI_CHILD);
 114 }
 115
 116 // unpack the parameters of WM_MDIACTIVATE message
 117 static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam,
 118                               WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact);
 119
 120 // return the HMENU of the MDI menu
 121 static inline HMENU GetMDIWindowMenu(wxMDIParentFrame *frame)
 122 {
 123     wxMenu *menu = frame->GetWindowMenu();
 124     return menu ? GetHmenuOf(menu) : 0;
 125 }
 126
 127 // ===========================================================================
 128 // implementation
 129 // ===========================================================================
 130
 131 // ---------------------------------------------------------------------------
 132 // wxWin macros
 133 // ---------------------------------------------------------------------------
 134
 135 IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame, wxFrame)
 136 IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame, wxFrame)
 137 IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow, wxWindow)
 138
 139 BEGIN_EVENT_TABLE(wxMDIParentFrame, wxFrame)
 140     EVT_SIZE(wxMDIParentFrame::OnSize)
 141     EVT_SYS_COLOUR_CHANGED(wxMDIParentFrame::OnSysColourChanged)
 142 END_EVENT_TABLE()
 143
 144 BEGIN_EVENT_TABLE(wxMDIChildFrame, wxFrame)
 145     EVT_IDLE(wxMDIChildFrame::OnIdle)
 146 END_EVENT_TABLE()
 147
 148 BEGIN_EVENT_TABLE(wxMDIClientWindow, wxWindow)
 149     EVT_SCROLL(wxMDIClientWindow::OnScroll)
 150 END_EVENT_TABLE()
 151
 152 // ===========================================================================
 153 // wxMDIParentFrame: the frame which contains the client window which manages
 154 // the children
 155 // ===========================================================================
 156
 157 wxMDIParentFrame::wxMDIParentFrame()
 158 {
 159     m_clientWindow = NULL;
 160     m_currentChild = NULL;
 161     m_windowMenu = (wxMenu*) NULL;
 162     m_parentFrameActive = true;
 163 }
 164
 165 bool wxMDIParentFrame::Create(wxWindow *parent,
 166                               wxWindowID id,
 167                               const wxString& title,
 168                               const wxPoint& pos,
 169                               const wxSize& size,
 170                               long style,
 171                               const wxString& name)
 172 {
 173   m_clientWindow = NULL;
 174   m_currentChild = NULL;
 175
 176   // this style can be used to prevent a window from having the standard MDI
 177   // "Window" menu
 178   if ( style & wxFRAME_NO_WINDOW_MENU )
 179   {
 180       m_windowMenu = (wxMenu *)NULL;
 181   }
 182   else // normal case: we have the window menu, so construct it
 183   {
 184       m_windowMenu = new wxMenu;
 185
 186       m_windowMenu->Append(IDM_WINDOWCASCADE, _("&Cascade"));
 187       m_windowMenu->Append(IDM_WINDOWTILEHOR, _("Tile &Horizontally"));
 188       m_windowMenu->Append(IDM_WINDOWTILEVERT, _("Tile &Vertically"));
 189       m_windowMenu->AppendSeparator();
 190       m_windowMenu->Append(IDM_WINDOWICONS, _("&Arrange Icons"));
 191       m_windowMenu->Append(IDM_WINDOWNEXT, _("&Next"));
 192       m_windowMenu->Append(IDM_WINDOWPREV, _("&Previous"));
 193   }
 194
 195   m_parentFrameActive = true;
 196
 197   if (!parent)
 198     wxTopLevelWindows.Append(this);
 199
 200   SetName(name);
 201   m_windowStyle = style;
 202
 203   if ( parent )
 204       parent->AddChild(this);
 205
 206   if ( id > -1 )
 207     m_windowId = id;
 208   else
 209     m_windowId = NewControlId();
 210
 211   WXDWORD exflags;
 212   WXDWORD msflags = MSWGetCreateWindowFlags(&exflags);
 213   msflags &= ~WS_VSCROLL;
 214   msflags &= ~WS_HSCROLL;
 215
 216   if ( !wxWindow::MSWCreate(wxMDIFrameClassName,
 217                             title,
 218                             pos, size,
 219                             msflags,
 220                             exflags) )
 221   {
 222       return false;
 223   }
 224
 225   // unlike (almost?) all other windows, frames are created hidden
 226   m_isShown = false;
 227
 228   return true;
 229 }
 230
 231 wxMDIParentFrame::~wxMDIParentFrame()
 232 {
 233     // see comment in ~wxMDIChildFrame
 234 #if wxUSE_TOOLBAR
 235     m_frameToolBar = NULL;
 236 #endif
 237     m_frameStatusBar = NULL;
 238
 239     DestroyChildren();
 240
 241     if (m_windowMenu)
 242     {
 243         delete m_windowMenu;
 244         m_windowMenu = (wxMenu*) NULL;
 245     }
 246
 247     // the MDI frame menubar is not automatically deleted by Windows unlike for
 248     // the normal frames
 249     if ( m_hMenu )
 250     {
 251         ::DestroyMenu((HMENU)m_hMenu);
 252         m_hMenu = (WXHMENU)NULL;
 253     }
 254
 255     if ( m_clientWindow )
 256     {
 257         if ( m_clientWindow->MSWGetOldWndProc() )
 258             m_clientWindow->UnsubclassWin();
 259
 260         m_clientWindow->SetHWND(0);
 261         delete m_clientWindow;
 262     }
 263 }
 264
 265 #if wxUSE_MENUS_NATIVE
 266
 267 void wxMDIParentFrame::InternalSetMenuBar()
 268 {
 269     m_parentFrameActive = true;
 270
 271     InsertWindowMenu(GetClientWindow(), m_hMenu, GetMDIWindowMenu(this));
 272 }
 273
 274 #endif // wxUSE_MENUS_NATIVE
 275
 276 void wxMDIParentFrame::SetWindowMenu(wxMenu* menu)
 277 {
 278     if (m_windowMenu)
 279     {
 280         if (GetMenuBar())
 281         {
 282             // Remove old window menu
 283             RemoveWindowMenu(GetClientWindow(), m_hMenu);
 284         }
 285
 286         delete m_windowMenu;
 287         m_windowMenu = (wxMenu*) NULL;
 288     }
 289
 290     if (menu)
 291     {
 292         m_windowMenu = menu;
 293         if (GetMenuBar())
 294         {
 295             InsertWindowMenu(GetClientWindow(), m_hMenu,
 296                              GetHmenuOf(m_windowMenu));
 297         }
 298     }
 299 }
 300
 301 void wxMDIParentFrame::OnSize(wxSizeEvent&)
 302 {
 303     if ( GetClientWindow() )
 304     {
 305         int width, height;
 306         GetClientSize(&width, &height);
 307
 308         GetClientWindow()->SetSize(0, 0, width, height);
 309     }
 310 }
 311
 312 // Returns the active MDI child window
 313 wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const
 314 {
 315     HWND hWnd = (HWND)::SendMessage(GetWinHwnd(GetClientWindow()),
 316                                     WM_MDIGETACTIVE, 0, 0L);
 317     if ( hWnd == 0 )
 318         return NULL;
 319     else
 320         return (wxMDIChildFrame *)wxFindWinFromHandle((WXHWND) hWnd);
 321 }
 322
 323 // Create the client window class (don't Create the window, just return a new
 324 // class)
 325 wxMDIClientWindow *wxMDIParentFrame::OnCreateClient()
 326 {
 327     return new wxMDIClientWindow;
 328 }
 329
 330 // Responds to colour changes, and passes event on to children.
 331 void wxMDIParentFrame::OnSysColourChanged(wxSysColourChangedEvent& event)
 332 {
 333     if ( m_clientWindow )
 334     {
 335         m_clientWindow->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
 336         m_clientWindow->Refresh();
 337     }
 338
 339     event.Skip();
 340 }
 341
 342 WXHICON wxMDIParentFrame::GetDefaultIcon() const
 343 {
 344     // we don't have any standard icons (any more)
 345     return (WXHICON)0;
 346 }
 347
 348 // ---------------------------------------------------------------------------
 349 // MDI operations
 350 // ---------------------------------------------------------------------------
 351
 352 void wxMDIParentFrame::Cascade()
 353 {
 354     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDICASCADE, 0, 0);
 355 }
 356
 357 // TODO: add a direction argument (hor/vert)
 358 void wxMDIParentFrame::Tile()
 359 {
 360     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDITILE, MDITILE_HORIZONTAL, 0);
 361 }
 362
 363 void wxMDIParentFrame::ArrangeIcons()
 364 {
 365     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDIICONARRANGE, 0, 0);
 366 }
 367
 368 void wxMDIParentFrame::ActivateNext()
 369 {
 370     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 0);
 371 }
 372
 373 void wxMDIParentFrame::ActivatePrevious()
 374 {
 375     ::SendMessage(GetWinHwnd(GetClientWindow()), WM_MDINEXT, 0, 1);
 376 }
 377
 378 // ---------------------------------------------------------------------------
 379 // the MDI parent frame window proc
 380 // ---------------------------------------------------------------------------
 381
 382 WXLRESULT wxMDIParentFrame::MSWWindowProc(WXUINT message,
 383                                      WXWPARAM wParam,
 384                                      WXLPARAM lParam)
 385 {
 386     WXLRESULT rc = 0;
 387     bool processed = false;
 388
 389     switch ( message )
 390     {
 391         case WM_ACTIVATE:
 392             {
 393                 WXWORD state, minimized;
 394                 WXHWND hwnd;
 395                 UnpackActivate(wParam, lParam, &state, &minimized, &hwnd);
 396
 397                 processed = HandleActivate(state, minimized != 0, hwnd);
 398             }
 399             break;
 400
 401         case WM_COMMAND:
 402             {
 403                 WXWORD id, cmd;
 404                 WXHWND hwnd;
 405                 UnpackCommand(wParam, lParam, &id, &hwnd, &cmd);
 406
 407                 (void)HandleCommand(id, cmd, hwnd);
 408
 409                 // even if the frame didn't process it, there is no need to try it
 410                 // once again (i.e. call wxFrame::HandleCommand()) - we just did it,
 411                 // so pretend we processed the message anyhow
 412                 processed = true;
 413             }
 414
 415             // always pass this message DefFrameProc(), otherwise MDI menu
 416             // commands (and sys commands - more surprisingly!) won't work
 417             MSWDefWindowProc(message, wParam, lParam);
 418             break;
 419
 420         case WM_CREATE:
 421             m_clientWindow = OnCreateClient();
 422             // Uses own style for client style
 423             if ( !m_clientWindow->CreateClient(this, GetWindowStyleFlag()) )
 424             {
 425                 wxLogMessage(_("Failed to create MDI parent frame."));
 426
 427                 rc = -1;
 428             }
 429
 430             processed = true;
 431             break;
 432
 433         case WM_ERASEBKGND:
 434             processed = true;
 435
 436             // we erase background ourselves
 437             rc = true;
 438             break;
 439
 440         case WM_MENUSELECT:
 441             {
 442                 WXWORD item, flags;
 443                 WXHMENU hmenu;
 444                 UnpackMenuSelect(wParam, lParam, &item, &flags, &hmenu);
 445
 446                 if ( m_parentFrameActive )
 447                 {
 448                     processed = HandleMenuSelect(item, flags, hmenu);
 449                 }
 450                 else if (m_currentChild)
 451                 {
 452                     processed = m_currentChild->
 453                         HandleMenuSelect(item, flags, hmenu);
 454                 }
 455             }
 456             break;
 457
 458         case WM_SIZE:
 459             // as we don't (usually) resize the MDI client to exactly fit the
 460             // client area (we put it below the toolbar, above statusbar &c),
 461             // we should not pass this one to DefFrameProc
 462             break;
 463     }
 464
 465     if ( !processed )
 466         rc = wxFrame::MSWWindowProc(message, wParam, lParam);
 467
 468     return rc;
 469 }
 470
 471 bool wxMDIParentFrame::HandleActivate(int state, bool minimized, WXHWND activate)
 472 {
 473     bool processed = false;
 474
 475     if ( wxWindow::HandleActivate(state, minimized, activate) )
 476     {
 477         // already processed
 478         processed = true;
 479     }
 480
 481     // If this window is an MDI parent, we must also send an OnActivate message
 482     // to the current child.
 483     if ( (m_currentChild != NULL) &&
 484          ((state == WA_ACTIVE) || (state == WA_CLICKACTIVE)) )
 485     {
 486         wxActivateEvent event(wxEVT_ACTIVATE, true, m_currentChild->GetId());
 487         event.SetEventObject( m_currentChild );
 488         if ( m_currentChild->GetEventHandler()->ProcessEvent(event) )
 489             processed = true;
 490     }
 491
 492     return processed;
 493 }
 494
 495 bool wxMDIParentFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd)
 496 {
 497     // In case it's e.g. a toolbar.
 498     if ( hwnd )
 499     {
 500         wxWindow *win = wxFindWinFromHandle(hwnd);
 501         if ( win )
 502             return win->MSWCommand(cmd, id);
 503     }
 504
 505     // is it one of standard MDI commands?
 506     WXWPARAM wParam = 0;
 507     WXLPARAM lParam = 0;
 508     int msg;
 509     switch ( id )
 510     {
 511         case IDM_WINDOWCASCADE:
 512             msg = WM_MDICASCADE;
 513             wParam = MDITILE_SKIPDISABLED;
 514             break;
 515
 516         case IDM_WINDOWTILEHOR:
 517             wParam |= MDITILE_HORIZONTAL;
 518             // fall through
 519
 520         case IDM_WINDOWTILEVERT:
 521             if ( !wParam )
 522                 wParam = MDITILE_VERTICAL;
 523             msg = WM_MDITILE;
 524             wParam |= MDITILE_SKIPDISABLED;
 525             break;
 526
 527         case IDM_WINDOWICONS:
 528             msg = WM_MDIICONARRANGE;
 529             break;
 530
 531         case IDM_WINDOWNEXT:
 532             msg = WM_MDINEXT;
 533             lParam = 0;         // next child
 534             break;
 535
 536         case IDM_WINDOWPREV:
 537             msg = WM_MDINEXT;
 538             lParam = 1;         // previous child
 539             break;
 540
 541         default:
 542             msg = 0;
 543     }
 544
 545     if ( msg )
 546     {
 547         ::SendMessage(GetWinHwnd(GetClientWindow()), msg, wParam, lParam);
 548
 549         return true;
 550     }
 551
 552     // FIXME VZ: what does this test do??
 553     if (id >= 0xF000)
 554     {
 555         return false; // Get WndProc to call default proc
 556     }
 557
 558     if ( IsMdiCommandId(id) )
 559     {
 560         wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
 561         while ( node )
 562         {
 563             wxWindow *child = node->GetData();
 564             if ( child->GetHWND() )
 565             {
 566                 long childId = wxGetWindowId(child->GetHWND());
 567                 if (childId == (long)id)
 568                 {
 569                     ::SendMessage( GetWinHwnd(GetClientWindow()),
 570                                    WM_MDIACTIVATE,
 571                                    (WPARAM)child->GetHWND(), 0);
 572                     return true;
 573                 }
 574             }
 575             node = node->GetNext();
 576         }
 577     }
 578     else if ( m_parentFrameActive )
 579     {
 580         return ProcessCommand(id);
 581     }
 582     else if ( m_currentChild )
 583     {
 584         return m_currentChild->HandleCommand(id, cmd, hwnd);
 585     }
 586     else
 587     {
 588         // this shouldn't happen because it means that our messages are being
 589         // lost (they're not sent to the parent frame nor to the children)
 590         wxFAIL_MSG(wxT("MDI parent frame is not active, yet there is no active MDI child?"));
 591     }
 592
 593     return false;
 594 }
 595
 596 WXLRESULT wxMDIParentFrame::MSWDefWindowProc(WXUINT message,
 597                                         WXWPARAM wParam,
 598                                         WXLPARAM lParam)
 599 {
 600     WXHWND clientWnd;
 601     if ( GetClientWindow() )
 602         clientWnd = GetClientWindow()->GetHWND();
 603     else
 604         clientWnd = 0;
 605
 606     return DefFrameProc(GetHwnd(), (HWND)clientWnd, message, wParam, lParam);
 607 }
 608
 609 bool wxMDIParentFrame::MSWTranslateMessage(WXMSG* msg)
 610 {
 611     MSG *pMsg = (MSG *)msg;
 612
 613     // first let the current child get it
 614     if ( m_currentChild && m_currentChild->GetHWND() &&
 615          m_currentChild->MSWTranslateMessage(msg) )
 616     {
 617         return true;
 618     }
 619
 620     // then try out accel table (will also check the menu accels)
 621     if ( wxFrame::MSWTranslateMessage(msg) )
 622     {
 623         return true;
 624     }
 625
 626     // finally, check for MDI specific built in accel keys
 627     if ( pMsg->message == WM_KEYDOWN || pMsg->message == WM_SYSKEYDOWN )
 628     {
 629         if ( ::TranslateMDISysAccel(GetWinHwnd(GetClientWindow()), pMsg))
 630             return true;
 631     }
 632
 633     return false;
 634 }
 635
 636 // ===========================================================================
 637 // wxMDIChildFrame
 638 // ===========================================================================
 639
 640 void wxMDIChildFrame::Init()
 641 {
 642     m_needsResize = true;
 643 }
 644
 645 bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
 646                              wxWindowID id,
 647                              const wxString& title,
 648                              const wxPoint& pos,
 649                              const wxSize& size,
 650                              long style,
 651                              const wxString& name)
 652 {
 653   SetName(name);
 654   wxWindowBase::Show(true); // MDI child frame starts off shown
 655
 656   if ( id > -1 )
 657     m_windowId = id;
 658   else
 659     m_windowId = (int)NewControlId();
 660
 661   if ( parent )
 662   {
 663       parent->AddChild(this);
 664   }
 665
 666   int x = pos.x;
 667   int y = pos.y;
 668   int width = size.x;
 669   int height = size.y;
 670
 671   MDICREATESTRUCT mcs;
 672
 673   mcs.szClass = style & wxFULL_REPAINT_ON_RESIZE
 674                     ? wxMDIChildFrameClassName
 675                     : wxMDIChildFrameClassNameNoRedraw;
 676   mcs.szTitle = title;
 677   mcs.hOwner = wxGetInstance();
 678   if (x > -1)
 679       mcs.x = x;
 680   else
 681       mcs.x = CW_USEDEFAULT;
 682
 683   if (y > -1)
 684       mcs.y = y;
 685   else
 686       mcs.y = CW_USEDEFAULT;
 687
 688   if (width > -1)
 689       mcs.cx = width;
 690   else
 691       mcs.cx = CW_USEDEFAULT;
 692
 693   if (height > -1)
 694       mcs.cy = height;
 695   else
 696       mcs.cy = CW_USEDEFAULT;
 697
 698   DWORD msflags = WS_OVERLAPPED | WS_CLIPCHILDREN | WS_VISIBLE ;
 699   if (style & wxMINIMIZE_BOX)
 700     msflags |= WS_MINIMIZEBOX;
 701   if (style & wxMAXIMIZE_BOX)
 702     msflags |= WS_MAXIMIZEBOX;
 703   if (style & wxTHICK_FRAME)
 704     msflags |= WS_THICKFRAME;
 705   if (style & wxSYSTEM_MENU)
 706     msflags |= WS_SYSMENU;
 707   if ((style & wxMINIMIZE) || (style & wxICONIZE))
 708     msflags |= WS_MINIMIZE;
 709   if (style & wxMAXIMIZE)
 710     msflags |= WS_MAXIMIZE;
 711   if (style & wxCAPTION)
 712     msflags |= WS_CAPTION;
 713
 714   mcs.style = msflags;
 715
 716   mcs.lParam = 0;
 717
 718   wxWindowCreationHook hook(this);
 719
 720   m_hWnd = (WXHWND)::SendMessage(GetWinHwnd(parent->GetClientWindow()),
 721                                  WM_MDICREATE, 0, (LONG)(LPSTR)&mcs);
 722
 723   wxAssociateWinWithHandle((HWND) GetHWND(), this);
 724
 725   return true;
 726 }
 727
 728 wxMDIChildFrame::~wxMDIChildFrame()
 729 {
 730     // will be destroyed by DestroyChildren() but reset them before calling it
 731     // to avoid using dangling pointers if a callback comes in the meanwhile
 732 #if wxUSE_TOOLBAR
 733     m_frameToolBar = NULL;
 734 #endif
 735     m_frameStatusBar = NULL;
 736
 737     DestroyChildren();
 738
 739     RemoveWindowMenu(NULL, m_hMenu);
 740
 741     MSWDestroyWindow();
 742 }
 743
 744 // Set the client size (i.e. leave the calculation of borders etc.
 745 // to wxWindows)
 746 void wxMDIChildFrame::DoSetClientSize(int width, int height)
 747 {
 748   HWND hWnd = GetHwnd();
 749
 750   RECT rect;
 751   ::GetClientRect(hWnd, &rect);
 752
 753   RECT rect2;
 754   GetWindowRect(hWnd, &rect2);
 755
 756   // Find the difference between the entire window (title bar and all)
 757   // and the client area; add this to the new client size to move the
 758   // window
 759   int actual_width = rect2.right - rect2.left - rect.right + width;
 760   int actual_height = rect2.bottom - rect2.top - rect.bottom + height;
 761
 762   if (GetStatusBar() && GetStatusBar()->IsShown())
 763   {
 764     int sx, sy;
 765     GetStatusBar()->GetSize(&sx, &sy);
 766     actual_height += sy;
 767   }
 768
 769   POINT point;
 770   point.x = rect2.left;
 771   point.y = rect2.top;
 772
 773   // If there's an MDI parent, must subtract the parent's top left corner
 774   // since MoveWindow moves relative to the parent
 775   wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent();
 776   ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
 777
 778   MoveWindow(hWnd, point.x, point.y, actual_width, actual_height, (BOOL)true);
 779
 780   wxSizeEvent event(wxSize(width, height), m_windowId);
 781   event.SetEventObject( this );
 782   GetEventHandler()->ProcessEvent(event);
 783 }
 784
 785 void wxMDIChildFrame::DoGetPosition(int *x, int *y) const
 786 {
 787   RECT rect;
 788   GetWindowRect(GetHwnd(), &rect);
 789   POINT point;
 790   point.x = rect.left;
 791   point.y = rect.top;
 792
 793   // Since we now have the absolute screen coords,
 794   // if there's a parent we must subtract its top left corner
 795   wxMDIParentFrame *mdiParent = (wxMDIParentFrame *)GetParent();
 796   ::ScreenToClient((HWND) mdiParent->GetClientWindow()->GetHWND(), &point);
 797
 798   *x = point.x;
 799   *y = point.y;
 800 }
 801
 802 void wxMDIChildFrame::InternalSetMenuBar()
 803 {
 804     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 805
 806     InsertWindowMenu(parent->GetClientWindow(),
 807                      m_hMenu, GetMDIWindowMenu(parent));
 808
 809     parent->m_parentFrameActive = false;
 810 }
 811
 812 WXHICON wxMDIChildFrame::GetDefaultIcon() const
 813 {
 814     // we don't have any standard icons (any more)
 815     return (WXHICON)0;
 816 }
 817
 818 // ---------------------------------------------------------------------------
 819 // MDI operations
 820 // ---------------------------------------------------------------------------
 821
 822 void wxMDIChildFrame::Maximize(bool maximize)
 823 {
 824     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 825     if ( parent && parent->GetClientWindow() )
 826     {
 827         ::SendMessage(GetWinHwnd(parent->GetClientWindow()),
 828                       maximize ? WM_MDIMAXIMIZE : WM_MDIRESTORE,
 829                       (WPARAM)GetHwnd(), 0);
 830     }
 831 }
 832
 833 void wxMDIChildFrame::Restore()
 834 {
 835     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 836     if ( parent && parent->GetClientWindow() )
 837     {
 838         ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIRESTORE,
 839                       (WPARAM) GetHwnd(), 0);
 840     }
 841 }
 842
 843 void wxMDIChildFrame::Activate()
 844 {
 845     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 846     if ( parent && parent->GetClientWindow() )
 847     {
 848         ::SendMessage(GetWinHwnd(parent->GetClientWindow()), WM_MDIACTIVATE,
 849                       (WPARAM) GetHwnd(), 0);
 850     }
 851 }
 852
 853 // ---------------------------------------------------------------------------
 854 // MDI window proc and message handlers
 855 // ---------------------------------------------------------------------------
 856
 857 WXLRESULT wxMDIChildFrame::MSWWindowProc(WXUINT message,
 858                                     WXWPARAM wParam,
 859                                     WXLPARAM lParam)
 860 {
 861     WXLRESULT rc = 0;
 862     bool processed = false;
 863
 864     switch ( message )
 865     {
 866         case WM_COMMAND:
 867             {
 868                 WORD id, cmd;
 869                 WXHWND hwnd;
 870                 UnpackCommand((WXWPARAM)wParam, (WXLPARAM)lParam,
 871                               &id, &hwnd, &cmd);
 872
 873                 processed = HandleCommand(id, cmd, (WXHWND)hwnd);
 874             }
 875             break;
 876
 877         case WM_GETMINMAXINFO:
 878             processed = HandleGetMinMaxInfo((MINMAXINFO *)lParam);
 879             break;
 880
 881         case WM_MDIACTIVATE:
 882             {
 883                 WXWORD act;
 884                 WXHWND hwndAct, hwndDeact;
 885                 UnpackMDIActivate(wParam, lParam, &act, &hwndAct, &hwndDeact);
 886
 887                 processed = HandleMDIActivate(act, hwndAct, hwndDeact);
 888             }
 889             // fall through
 890
 891         case WM_MOVE:
 892             // must pass WM_MOVE to DefMDIChildProc() to recalculate MDI client
 893             // scrollbars if necessary
 894
 895             // fall through
 896
 897         case WM_SIZE:
 898             // must pass WM_SIZE to DefMDIChildProc(), otherwise many weird
 899             // things happen
 900             MSWDefWindowProc(message, wParam, lParam);
 901             break;
 902
 903         case WM_SYSCOMMAND:
 904             // DefMDIChildProc handles SC_{NEXT/PREV}WINDOW here, so pass it
 905             // the message (the base class version does not)
 906             return MSWDefWindowProc(message, wParam, lParam);
 907
 908         case WM_WINDOWPOSCHANGING:
 909             processed = HandleWindowPosChanging((LPWINDOWPOS)lParam);
 910             break;
 911     }
 912
 913     if ( !processed )
 914         rc = wxFrame::MSWWindowProc(message, wParam, lParam);
 915
 916     return rc;
 917 }
 918
 919 bool wxMDIChildFrame::HandleCommand(WXWORD id, WXWORD cmd, WXHWND hwnd)
 920 {
 921     // In case it's e.g. a toolbar.
 922     if ( hwnd )
 923     {
 924         wxWindow *win = wxFindWinFromHandle(hwnd);
 925         if (win)
 926             return win->MSWCommand(cmd, id);
 927     }
 928
 929     if (wxCurrentPopupMenu)
 930     {
 931         wxMenu *popupMenu = wxCurrentPopupMenu;
 932         wxCurrentPopupMenu = NULL;
 933         if (popupMenu->MSWCommand(cmd, id))
 934             return true;
 935     }
 936
 937     bool processed;
 938     if (GetMenuBar() && GetMenuBar()->FindItem(id))
 939     {
 940         processed = ProcessCommand(id);
 941     }
 942     else
 943     {
 944         processed = false;
 945     }
 946
 947     return processed;
 948 }
 949
 950 bool wxMDIChildFrame::HandleMDIActivate(long WXUNUSED(activate),
 951                                         WXHWND hwndAct,
 952                                         WXHWND hwndDeact)
 953 {
 954     wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
 955
 956     HMENU menuToSet = 0;
 957
 958     bool activated;
 959
 960     if ( m_hWnd == hwndAct )
 961     {
 962         activated = true;
 963         parent->m_currentChild = this;
 964
 965         HMENU child_menu = (HMENU)GetWinMenu();
 966         if ( child_menu )
 967         {
 968             parent->m_parentFrameActive = false;
 969
 970             menuToSet = child_menu;
 971         }
 972     }
 973     else if ( m_hWnd == hwndDeact )
 974     {
 975         wxASSERT_MSG( parent->m_currentChild == this,
 976                       wxT("can't deactivate MDI child which wasn't active!") );
 977
 978         activated = false;
 979         parent->m_currentChild = NULL;
 980
 981         HMENU parent_menu = (HMENU)parent->GetWinMenu();
 982
 983         // activate the the parent menu only when there is no other child
 984         // that has been activated
 985         if ( parent_menu && !hwndAct )
 986         {
 987             parent->m_parentFrameActive = true;
 988
 989             menuToSet = parent_menu;
 990         }
 991     }
 992     else
 993     {
 994         // we have nothing to do with it
 995         return false;
 996     }
 997
 998     if ( menuToSet )
 999     {
1000         MDISetMenu(parent->GetClientWindow(),
1001                    menuToSet, GetMDIWindowMenu(parent));
1002     }
1003
1004     wxActivateEvent event(wxEVT_ACTIVATE, activated, m_windowId);
1005     event.SetEventObject( this );
1006
1007     ResetWindowStyle((void *)NULL);
1008
1009     return GetEventHandler()->ProcessEvent(event);
1010 }
1011
1012 bool wxMDIChildFrame::HandleWindowPosChanging(void *pos)
1013 {
1014     WINDOWPOS *lpPos = (WINDOWPOS *)pos;
1015 #if defined(__WIN95__)
1016     if (!(lpPos->flags & SWP_NOSIZE))
1017     {
1018         RECT rectClient;
1019         DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
1020         DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
1021         if (ResetWindowStyle((void *) & rectClient) && (dwStyle & WS_MAXIMIZE))
1022         {
1023             ::AdjustWindowRectEx(&rectClient, dwStyle, false, dwExStyle);
1024             lpPos->x = rectClient.left;
1025             lpPos->y = rectClient.top;
1026             lpPos->cx = rectClient.right - rectClient.left;
1027             lpPos->cy = rectClient.bottom - rectClient.top;
1028         }
1029 #if wxUSE_TOOLBAR
1030         wxMDIParentFrame* pFrameWnd = (wxMDIParentFrame *)GetParent();
1031         if (pFrameWnd && pFrameWnd->GetToolBar() && pFrameWnd->GetToolBar()->IsShown())
1032         {
1033             pFrameWnd->GetToolBar()->Refresh();
1034         }
1035 #endif
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 processed;
1070 }
1071
1072 // ---------------------------------------------------------------------------
1073 // MDI specific message translation/preprocessing
1074 // ---------------------------------------------------------------------------
1075
1076 WXLRESULT wxMDIChildFrame::MSWDefWindowProc(WXUINT message, WXWPARAM 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::compatibility_iterator 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     ::SendMessage(GetWinHwnd(win), WM_MDIREFRESHMENU, 0, 0L);
1305
1306     ::DrawMenuBar(GetWinHwnd(parent));
1307 }
1308
1309 static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu)
1310 {
1311     // Try to insert Window menu in front of Help, otherwise append it.
1312     HMENU hmenu = (HMENU)menu;
1313
1314     if (subMenu)
1315     {
1316         int N = GetMenuItemCount(hmenu);
1317         bool success = false;
1318         for ( int i = 0; i < N; i++ )
1319         {
1320             wxChar buf[256];
1321             int chars = GetMenuString(hmenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION);
1322             if ( chars == 0 )
1323             {
1324                 wxLogLastError(wxT("GetMenuString"));
1325
1326                 continue;
1327             }
1328
1329             if ( wxStripMenuCodes(wxString(buf)).IsSameAs(_("Help")) )
1330             {
1331                 success = true;
1332                 ::InsertMenu(hmenu, i, MF_BYPOSITION | MF_POPUP | MF_STRING,
1333                              (UINT)subMenu, _("&Window"));
1334                 break;
1335             }
1336         }
1337
1338         if ( !success )
1339         {
1340             ::AppendMenu(hmenu, MF_POPUP, (UINT)subMenu, _("&Window"));
1341         }
1342     }
1343
1344     MDISetMenu(win, hmenu, subMenu);
1345 }
1346
1347 static void RemoveWindowMenu(wxWindow *win, WXHMENU menu)
1348 {
1349     HMENU hMenu = (HMENU)menu;
1350
1351     if ( hMenu )
1352     {
1353         wxChar buf[1024];
1354
1355         int N = ::GetMenuItemCount(hMenu);
1356         for ( int i = 0; i < N; i++ )
1357         {
1358             if ( !::GetMenuString(hMenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION) )
1359             {
1360                 // Ignore successful read of menu string with length 0 which
1361                 // occurs, for example, for a maximized MDI childs system menu
1362                 if ( ::GetLastError() != 0 )
1363                 {
1364                     wxLogLastError(wxT("GetMenuString"));
1365                 }
1366
1367                 continue;
1368             }
1369
1370             if ( wxStrcmp(buf, _("&Window")) == 0 )
1371             {
1372                 if ( !::RemoveMenu(hMenu, i, MF_BYPOSITION) )
1373                 {
1374                     wxLogLastError(wxT("RemoveMenu"));
1375                 }
1376
1377                 break;
1378             }
1379         }
1380     }
1381
1382     if ( win )
1383     {
1384         // we don't change the windows menu, but we update the main one
1385         MDISetMenu(win, hMenu, NULL);
1386     }
1387 }
1388
1389 static void UnpackMDIActivate(WXWPARAM wParam, WXLPARAM lParam,
1390                               WXWORD *activate, WXHWND *hwndAct, WXHWND *hwndDeact)
1391 {
1392     *activate = true;
1393     *hwndAct = (WXHWND)lParam;
1394     *hwndDeact = (WXHWND)wParam;
1395 }
1396
1397 #endif
1398 // wxUSE_MDI_ARCHITECTURE && !defined(__WXUNIVERSAL__)
1399