As it appears there’s a problem to implement the mousewheel over a Flex application under Mac. There is a solution, unfortunately through JavaScript, but however it works.

See how on http://blog.pixelbreaker.com/flash/as30-mousewheel-on-mac-os-x/

The problem is that the mousewheel event listener is registered by the JavaScript and sometimes is still working after mouseout from the flash movie.

Related posts:

1. Flex Javascript communication
2. Flex Javascript communcation example
3. Flex 3 import swf symbols