public class Win32
    {
        [DllImport("User32.Dll")]
        public static extern long SetCursorPos(int x, int y);

        [DllImport("User32.Dll")]
        public static extern bool ClientToScreen(IntPtr hWnd, ref POINT point);

        [StructLayout(LayoutKind.Sequential)]
        public struct POINT
        {
            public int x;
            public int y;
        }
    }