Flex SWF Accepting Play or Rewind Command from the Flash Player (Projector)

I'm trying to make my Flex SWF act like a Flash movie SWF so that when the user issues the Play command in the FLash Player it can trigger an event in my Flex SWF file. I'm not sure what event this would hook into or if this is possible with Flex. Any help 开发者_StackOverflowappreciated.

Thanks!

It's not possible to use the 'play' in Flex per say since even though Flash is a frame based VM, Flex is masked against that so that users can use frame based actions.

What would be the requirement to have Flex have a 'play/rewind' command? What would it rewind if there's no frame?