LPFN_WSANSPIOCTL

type LPFN_WSANSPIOCTL = function(

  const hLookup: THANDLE;

  const dwControlCode: DWORD;

  lpvInBuffer: Pointer;

  var cbInBuffer: DWORD;

  lpvOutBuffer: Pointer;

  var cbOutBuffer: DWORD;

  var lpcbBytesReturned: DWORD;

  lpCompletion: LPWSACOMPLETION

):Integer;