# // PerformAction < PCHAR 'Out, INT Len, PCHAR In, ULONG Rq_flags >               
+
  Result = SysPerformAction (Out, Len, In, Rq_flags)

  if Result = NO_ERROR   
  +
    PrintString ("All done." "\n")
  ;
  else 
  +
    HandleError (Result)
  ;

  return Result
;