public virtual string format_message()
{
string msgtext = GetMessageText(m_msg_code);
if (msgtext == null)
{
m_msg_parm = new object[] { m_msg_code };
msgtext = GetMessageText(0);
}
/* Format the message into the passed buffer */
return string.Format(CultureInfo.CurrentCulture, msgtext, m_msg_parm);
}