/// <summary>
        /// Creates the native menu item.
        /// </summary>
        /// <param name="toolStripItem">The tool strip item.</param>
        /// <param name="id">The id.</param>
        /// <returns>The native menu ite,.</returns>
        private static MENUITEMINFO CreateNativeMenuItem(ToolStripItem toolStripItem, uint id)
        {
            //  Create a menu item info, set its size.
            var menuItemInfo = new MENUITEMINFO();
            menuItemInfo.cbSize = (uint)Marshal.SizeOf(menuItemInfo);
            menuItemInfo.wID = id;

            //  Depending on the type of the item, we'll call the appropriate building function.
            if(toolStripItem is ToolStripMenuItem)
                BuildMenuItemInfo(ref menuItemInfo, (ToolStripMenuItem)toolStripItem);
            else if(toolStripItem is ToolStripSeparator)
                BuildSeparatorMenuItemInfo(ref menuItemInfo);

            //  Return the menu item info.
            return menuItemInfo;
        }
        /// <summary>
        /// Builds the menu item info.
        /// </summary>
        /// <param name="menuItemInfo">The menu item info.</param>
        /// <param name="menuItem">The menu item.</param>
        private static void BuildMenuItemInfo(ref MENUITEMINFO menuItemInfo, ToolStripMenuItem menuItem)
        {
            //  Set the mask - we're interested in essentially everything.
            menuItemInfo.fMask = (uint)(MIIM.MIIM_BITMAP | MIIM.MIIM_STRING | MIIM.MIIM_FTYPE |
                                         MIIM.MIIM_ID | MIIM.MIIM_STATE);

            //  If the menu item has children, we'll also create the submenu.
            if (menuItem.HasDropDownItems)
            {
                menuItemInfo.fMask += (uint) MIIM.MIIM_SUBMENU;
                menuItemInfo.hSubMenu = User32.CreatePopupMenu();
            }

            //  The type is the string.
            menuItemInfo.fType = (uint)MFT.MFT_STRING;

            //  The type data is the text of the menu item.
            menuItemInfo.dwTypeData = menuItem.Text;

            //  The state is enabled.
            menuItemInfo.fState = menuItem.Enabled ? (uint)MFS.MFS_ENABLED : (uint)(MFS.MFS_DISABLED | MFS.MFS_GRAYED);

            //  If the menu item is checked, add the check state.
            if (menuItem.Checked)
            {
                menuItemInfo.fState += (uint) MFS.MFS_CHECKED;
            }

            //  Is there an icon?
            menuItemInfo.hbmpItem = menuItem.Image != null ? new Bitmap(menuItem.Image).GetHbitmap() : IntPtr.Zero;
        }
 /// <summary>
 /// Builds the menu item info.
 /// </summary>
 /// <param name="menuItemInfo">The menu item info.</param>
 private static void BuildSeparatorMenuItemInfo(ref MENUITEMINFO menuItemInfo)
 {
     //  Set the mask to the type only, and the type to the separator type.
     menuItemInfo.fMask = (uint)MIIM.MIIM_TYPE;
     menuItemInfo.fType = (uint)MFT.MFT_SEPARATOR;
 }
Esempio n. 4
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 internal static extern bool InsertMenuItem(IntPtr hMenu, uint uItem, bool fByPosition,
                                            [In] ref MENUITEMINFO lpmii);