internal static extern bool InsertMenu(MenuHandler hmenu, int position, MF_UFlags uflags, IntPtr uIDNewItemOrSubmenu, string text);
internal static extern int SetMenuItemBitmaps(MenuHandler hmenu, int nPosition, MF_UFlags uflags, IntPtr hBitmapUnchecked, IntPtr hBitmapChecked);
internal static extern bool AppendMenu(MenuHandler hmenu, MF_UFlags uflags, IntPtr uIDNewItemOrSubmenu, string text);