public static extern int WinStationQueryInformationRemoteAddress(
IntPtr hServer,
int sessionId,
WINSTATIONINFOCLASS information,
ref WINSTATIONREMOTEADDRESS buffer,
int bufferLength,
out int returnedLength);
public static EndPoint QuerySessionInformationForEndPoint(ITerminalServerHandle server, int sessionId)
{
int retLen;
var remoteAddress = new WINSTATIONREMOTEADDRESS();
if (NativeMethods.WinStationQueryInformationRemoteAddress(
server.Handle,
sessionId,
WINSTATIONINFOCLASS.WinStationRemoteAddress,
ref remoteAddress,
Marshal.SizeOf(typeof(WINSTATIONREMOTEADDRESS)),
out retLen) != 0)
{
var ipAddress = ExtractIPAddress(remoteAddress.Family, remoteAddress.Address);
int port = NativeMethods.ntohs((ushort)remoteAddress.Port);
return(ipAddress == null ? null : new IPEndPoint(ipAddress, port));
}
throw new Win32Exception();
}