LPNSPIOCTL

type LPNSPIOCTL = function(

  hLookup: HANDLE;

  dwControlCode: DWORD;

  lpvInBuffer: LPVOID;

  cbInBuffer: DWORD;

  lpvOutBuffer: LPVOID;

  cbOutBuffer: DWORD;

  lpcbBytesReturned: LPDWORD;

  lpCompletion: LPWSACOMPLETION;

  lpThreadId: LPWSATHREADID

):Integer;