winform显示、隐藏任务栏及开始菜单

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);
}