隐藏显示任务栏

实现效果：

　　

知识运用：

private const int SW_HIDE = 0;
        private const int SW_RESTORE = 9;
        [DllImport("user32.dll")]           //寻找窗口列表中第一个符合指定条件的顶级窗口
        public static extern int FindWindow(string IpClassName,string IpWindowName);
        [DllImport("user32.dll")]           //控制窗口的可见性
        public static extern int ShowWindow(int hwnd,int nCmdShow);
        private void button1_Click(object sender, EventArgs e)
        {
            if (radioButton1.Checked)
                ShowWindow(FindWindow("Shell_TrayWnd", null), SW_HIDE); //隐藏任务栏
            else
                ShowWindow(FindWindow("Shell_TrayWnd",null),SW_RESTORE);//显示任务栏
        }