private const int SW_HIDE = 0;private const int SW_RESTORE = 9;private const string SHELL_TRAYWND = "Shell_TrayWnd";private const string BUTTON = "Button";[DllImport("user32.dll")]public static extern int ShowWindow(int hwnd, int nCmdShow);[DllImport("user32.dll")]public static extern int FindWindow(string lpClassName, string lpWindowName);public static void ShowTask(){ ShowWindow(FindWindow(SHELL_TRAYWND, null), SW_RESTORE); ShowWindow(FindWindow(BUTTON, null), SW_RESTORE);}public static void HideTask(){ ShowWindow(FindWindow(SHELL_TRAYWND, null), SW_HIDE); ShowWindow(FindWindow(BUTTON, null), SW_HIDE);}