C# 操作鼠标

        [DllImport("user32.dll")]
        private static extern int SetCursorPos(int x, int y);

        public enum MouseEventFlags
        {
            Move = 0x0001,
            LeftDown = 0x0002,
            LeftUp = 0x0004,
            RightDown = 0x0008,
            RightUp = 0x0010,
            MiddleDown = 0x0020,
            MiddleUp = 0x0040,
            Wheel = 0x0800,
            Absolute = 0x8000
        }
        [DllImport("User32")]
        public extern static void mouse_event(int dwFlags, int dx, int dy, int dwData, IntPtr dwExtraInfo);

        /// <summary>        
        /// 移动鼠标到指定的坐标点        
        /// </summary>        
        public void MoveMouseToPoint()
        {
            string settingValue = ConfigurationManager.AppSettings.Get("Point");
            string[] pList = settingValue.Split(',');
            Point centerP = new Point(int.Parse(pList[0]), int.Parse(pList[1]));
            if (checkBox1.Checked)
            {
                SetCursorPos(centerP.X, centerP.Y);
                mouse_event((int)(MouseEventFlags.LeftDown | MouseEventFlags.Absolute), 0, 0, 0, IntPtr.Zero);
                mouse_event((int)(MouseEventFlags.LeftUp | MouseEventFlags.Absolute), 0, 0, 0, IntPtr.Zero);
            }
        }
        /// <summary>       
        /// /// 设置鼠标的移动范围        
        /// </summary>        
        public void SetMouseRectangle(Rectangle rectangle)
        {
            System.Windows.Forms.Cursor.Clip = rectangle;
        }