C#显示及隐藏任务栏

private const int SW_HIDE = 0; //隐藏任务栏
        private const int SW_RESTORE = 9;//显示任务栏

        [DllImport("user32.dll")]
        public static extern int ShowWindow(int hwnd, int nCmdShow);
        [DllImport("user32.dll")]
        public static extern int FindWindow(string lpClassName, string lpWindowName);

        /// <summary>
        /// 显示任务栏
        /// </summary>
        public static void showtask()
        {
            ShowWindow(FindWindow("Shell_TrayWnd", null), SW_RESTORE);
        }
        /// <summary>
        /// 隐藏任务栏
        /// </summary>
        public static void Hidetask()
        {
            ShowWindow(FindWindow("Shell_TrayWnd", null), SW_HIDE);
        }