code: def handle_error(result):
      
  
      if result:
          return
  
      _, error_string = get_error()
  
      if not isinstance(error_string, str_cls):
          error_string = _try_decode(error_string)
  
      raise OSError(error_string)
docs: Extracts the last Windows error message into a python unicode string
  
      :param result:
          A function result, 0 or None indicates failure
  
      :return:
          A unicode string error message