protected void chain_output(osd_output_channel channel, string msg)
{
if (m_chain != null)
{
m_chain.output_callback(channel, msg);
}
}
protected void chain_output(osd_output_channel channel, string format, params object [] args) //void chain_output(osd_output_channel channel, util::format_argument_pack<std::ostream> const &args) const
{
if (m_chain != null)
{
m_chain.output_callback(channel, format, args);
}
}