LPFN_CONNECTEX

type LPFN_CONNECTEX = function(

  const s: TSocket;

  const name: PSOCKADDR;

  const namelen: Integer;

  lpSendBuffer: Pointer;

  dwSendDataLength: DWORD;

  var lpdwBytesSent: DWORD;

  lpOverlapped: LPWSAOVERLAPPED

):BOOL;