lastWin32ErrorMessage

# File railties/lib/rails_generator/secret_key_generator.rb, line 111
      def lastWin32ErrorMessage
        # Following code is based on David Garamond's GUID library for Ruby.
        get_last_error = Win32API.new("kernel32", "GetLastError", '', 'L')
        format_message = Win32API.new("kernel32", "FormatMessageA",
                                      'LPLLPLPPPPPPPP', 'L')
        format_message_ignore_inserts  = 0x00000200
        format_message_from_system     = 0x00001000

        code = get_last_error.call
        msg = "\0" * 1024
        len = format_message.call(format_message_ignore_inserts +
                                  format_message_from_system, 0,
                                  code, 0, msg, 1024, nil, nil,
                                  nil, nil, nil, nil, nil, nil)
        msg[0, len].tr("\r", '').chomp
      end