Prevent a Photon application from exiting
void PtPreventExit( void );
PtPreventExit() lets Photon know that it isn't safe to exit your application.
In a multithreaded application, any thread can call PtExit(), but another thread might be in the middle of an important operation, such as writing a file. To prevent this situation from arising, call PtPreventExit() before starting the operation, and call PtAllowExit() when it's done.
|Instead of calling PtPreventExit() and PtAllowExit() directly, you're better off calling PtEnter() and PtLeave() with Pt_DELAY_EXIT set in the flags. For a discussion of the difference between these functions and using Pt_DELAY_EXIT, see “Exiting a multithreaded program” in the Parallel Operations chapter of the Photon Programmer's Guide.|
PtAllowExit(), PtEnter(), PtExit(), PtLeave()
Parallel Operations chapter of the Photon Programmer's Guide