public static void SetWinTaskbarState(WinTaskbarState state)
{
NativeMethods.APPBARDATA abd = new NativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(typeof(NativeMethods.APPBARDATA));
abd.hWnd = NativeMethods.FindWindow("Shell_TrayWnd");
abd.lParam = (IntPtr)state;
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_SETSTATE, ref abd);
}