// implement sink function
virtual void DoLogString(const wxChar *szString, time_t t);
// implement sink function
virtual void DoLogString(const wxChar *szString, time_t t);
bool bShow = true, // show window immediately?
bool bPassToOld = true); // pass messages to the old target?
bool bShow = true, // show window immediately?
bool bPassToOld = true); // pass messages to the old target?