WSARecvFrom

function WSARecvFrom(

  s: TSocket;

  lpBuffers: LPWSABUF;

  dwBufferCount: DWORD;

  var lpNumberOfBytesRecvd: DWORD;

  var lpFlags: DWORD;

  lpFrom: PSockAddr;

  lpFromlen: PINT;

  lpOverlapped: LPWSAOVERLAPPED;

  lpCompletionRoutine: LPWSAOVERLAPPED_COMPLETION_ROUTINE

):Integer;