コード例 #1
0
        /// <devdoc> this takes a native menu and builds up a managed toolstrip around it.
        ///          Scenario: showing the items from the SystemMenu.
        ///          targetWindow is the window to send WM_COMMAND, WM_SYSCOMMAND to
        ///          hmenu is a handle to the native menu
        ///
        ///

        internal static ToolStripDropDownMenu FromHMenu(IntPtr hmenu, IWin32Window targetWindow)
        {
            ToolStripDropDownMenu managedDropDown = new ToolStripDropDownMenu();

            managedDropDown.SuspendLayout();


            HandleRef menuHandle = new HandleRef(null, hmenu);
            int       count      = UnsafeNativeMethods.GetMenuItemCount(menuHandle);

            ToolStripItem itemToAdd;

            // surf through the items in the collection, building up TSMenuItems and TSSeparators
            // corresponding to the native menu.
            for (int i = 0; i < count; i++)
            {
                // peek at the i'th item.
                NativeMethods.MENUITEMINFO_T_RW info = new NativeMethods.MENUITEMINFO_T_RW();
                info.cbSize = Marshal.SizeOf <NativeMethods.MENUITEMINFO_T_RW>();
                info.fMask  = NativeMethods.MIIM_FTYPE;
                info.fType  = NativeMethods.MIIM_FTYPE;
                UnsafeNativeMethods.GetMenuItemInfo(menuHandle, i, /*fByPosition=*/ true, info);

                if (info.fType == NativeMethods.MFT_SEPARATOR)
                {
                    // its a separator.
                    itemToAdd = new ToolStripSeparator();
                }
                else
                {
                    // its a menu item... lets fish out the command id
                    info        = new NativeMethods.MENUITEMINFO_T_RW();
                    info.cbSize = Marshal.SizeOf <NativeMethods.MENUITEMINFO_T_RW>();
                    info.fMask  = NativeMethods.MIIM_ID;
                    info.fType  = NativeMethods.MIIM_ID;
                    UnsafeNativeMethods.GetMenuItemInfo(menuHandle, i, /*fByPosition=*/ true, info);

                    // create the managed object - toolstripmenu item knows how to grok hmenu for information.
                    itemToAdd = new ToolStripMenuItem(hmenu, info.wID, targetWindow);


                    // if there is a submenu fetch it.
                    info        = new NativeMethods.MENUITEMINFO_T_RW();
                    info.cbSize = Marshal.SizeOf <NativeMethods.MENUITEMINFO_T_RW>();
                    info.fMask  = NativeMethods.MIIM_SUBMENU;
                    info.fType  = NativeMethods.MIIM_SUBMENU;
                    UnsafeNativeMethods.GetMenuItemInfo(menuHandle, i, /*fByPosition=*/ true, info);

                    if (info.hSubMenu != IntPtr.Zero)
                    {
                        // set the dropdown to be the items from the submenu
                        ((ToolStripMenuItem)itemToAdd).DropDown = FromHMenu(info.hSubMenu, targetWindow);
                    }
                }

                managedDropDown.Items.Add(itemToAdd);
            }
            managedDropDown.ResumeLayout();
            return(managedDropDown);
        }
コード例 #2
0
ファイル: menu.cs プロジェクト: wolewd/Windows-Server-2003
 /// <include file='doc\Menu.uex' path='docs/doc[@for="Menu.DestroyMenuItems"]/*' />
 /// <devdoc>
 /// </devdoc>
 /// <internalonly/>
 internal void DestroyMenuItems()
 {
     if (created)
     {
         while (UnsafeNativeMethods.GetMenuItemCount(new HandleRef(this, handle)) > 0)
         {
             UnsafeNativeMethods.RemoveMenu(new HandleRef(this, handle), 0, NativeMethods.MF_BYPOSITION);
         }
         created = false;
     }
 }
コード例 #3
0
 /// <include file='doc\Menu.uex' path='docs/doc[@for="Menu.DestroyMenuItems"]/*' />
 /// <devdoc>
 /// </devdoc>
 /// <internalonly/>
 internal void DestroyMenuItems()
 {
     if (created)
     {
         for (int i = 0; i < ItemCount; i++)
         {
             items[i].ClearHandles();
         }
         while (UnsafeNativeMethods.GetMenuItemCount(new HandleRef(this, handle)) > 0)
         {
             UnsafeNativeMethods.RemoveMenu(new HandleRef(this, handle), 0, NativeMethods.MF_BYPOSITION);
         }
         created = false;
     }
 }