/// Returned by WSARecv or WSARecvFrom to indicate the remote party has initiated a graceful shutdown sequence.

    public static extern int recvfrom(IntPtr Socket, IntPtr buf, int len, SendDataFlags flags, ref SockAddr from, IntPtr fromlen);

    public static int recvfrom(IntPtr Socket, IntPtr buf, int len, SendDataFlags flags, ref SockAddr from)

        return recvfrom(Socket, buf, len, flags, ref from, IntPtr.Zero);

Declare Function RecvFrom Lib "ws2_32.dll" (TODO) As TODO