Take into account CS_NOCLOSE window class style and SC_CLOSE system
menu item state while adding MDI system menu buttons and generating WM_SYSCOMMAND messages.
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a726387a07
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bc07b2aca4
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@ -200,6 +200,20 @@ static MDICLIENTINFO *get_client_info( HWND client )
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return ret;
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}
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static BOOL is_close_enabled(HWND hwnd, HMENU hSysMenu)
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{
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if (GetClassLongW(hwnd, GCL_STYLE) & CS_NOCLOSE) return FALSE;
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if (!hSysMenu) hSysMenu = GetSystemMenu(hwnd, FALSE);
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if (hSysMenu)
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{
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UINT state = GetMenuState(hSysMenu, SC_CLOSE, MF_BYCOMMAND);
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if (state == 0xFFFFFFFF || (state & (MF_DISABLED | MF_GRAYED)))
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return FALSE;
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}
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return TRUE;
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}
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/**********************************************************************
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* MDI_GetWindow
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*
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@ -812,13 +826,13 @@ static BOOL MDI_AugmentFrameMenu( HWND frame, HWND hChild )
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if (!(hSysPopup = GetSystemMenu(hChild, FALSE)))
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return 0;
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AppendMenuA(menu,MF_HELP | MF_BITMAP,
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SC_MINIMIZE, (LPSTR)(DWORD)HBMMENU_MBAR_MINIMIZE ) ;
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AppendMenuA(menu,MF_HELP | MF_BITMAP,
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SC_RESTORE, (LPSTR)(DWORD)HBMMENU_MBAR_RESTORE );
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AppendMenuA(menu,MF_HELP | MF_BITMAP,
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SC_CLOSE, (LPSTR)(DWORD)HBMMENU_MBAR_CLOSE );
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AppendMenuW(menu, MF_HELP | MF_BITMAP,
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SC_MINIMIZE, (LPCWSTR)HBMMENU_MBAR_MINIMIZE ) ;
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AppendMenuW(menu, MF_HELP | MF_BITMAP,
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SC_RESTORE, (LPCWSTR)HBMMENU_MBAR_RESTORE );
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AppendMenuW(menu, MF_HELP | MF_BITMAP,
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SC_CLOSE, is_close_enabled(hChild, hSysPopup) ?
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(LPCWSTR)HBMMENU_MBAR_CLOSE : (LPCWSTR)HBMMENU_MBAR_CLOSE_D );
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/* The system menu is replaced by the child icon */
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hIcon = (HICON)GetClassLongPtrW(hChild, GCLP_HICONSM);
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@ -1306,13 +1320,14 @@ LRESULT WINAPI DefFrameProcW( HWND hwnd, HWND hwndMDIClient,
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if( !IsZoomed(ci->hwndActiveChild) ) break;
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switch( id )
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{
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case SC_CLOSE:
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if (!is_close_enabled(ci->hwndActiveChild, 0)) break;
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case SC_SIZE:
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case SC_MOVE:
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case SC_MINIMIZE:
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case SC_MAXIMIZE:
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case SC_NEXTWINDOW:
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case SC_PREVWINDOW:
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case SC_CLOSE:
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case SC_RESTORE:
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return SendMessageW( ci->hwndActiveChild, WM_SYSCOMMAND,
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wParam, lParam);
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@ -1617,8 +1632,12 @@ BOOL WINAPI TranslateMDISysAccel( HWND hwndClient, LPMSG msg )
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break;
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case VK_F4:
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case VK_RBUTTON:
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wParam = SC_CLOSE;
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break;
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if (is_close_enabled(ci->hwndActiveChild, 0))
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{
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wParam = SC_CLOSE;
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break;
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}
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/* fall through */
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default:
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return 0;
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}
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