system stores the last active app (only one latest) for you, so when you exit the called app by queuing appStopEvent, the control will be automatically switched back to the caller. This is restricted to two apps calling each other, and it won't work for a calling chain with more than two apps. Also, the called app must exit by sending itself a appStopEvent.
in your case, unless you can modify Camera app code or Camera app already queue appStopEvent to exit, you won't be able to switch back to your own app. -mguo -- For information on using the PalmSource Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
