XPLMUnregisterFlightLoopCallback

XPLMUnregisterFlightLoopCallback

XPLM_API void                 XPLMUnregisterFlightLoopCallback(
                                   XPLMFlightLoop_f     inFlightLoop,    
                                   void *               inRefcon);    

This routine unregisters your flight loop callback. Do NOT call it from your flight loop callback. Once your flight loop callback is unregistered, it will not be called again.