I have a thread that handle all photon stuff, with its own mainloop (PtMainLoop()).

When the windows is close, the whole application terminated.  I just want PtMainLoop() to return.  I couldn't find 
anything in the documentation how to handle this scenario, although I can remember reading about this a while ago .  
Sorry for asking about something that is probably documented but doing search with the keywords, exit, termination, 
close is generating lots of noise ;-)