# Looking for an Event

**URL:** <https://forum.kirupa.com/t/looking-for-an-event/329834>\
**Category:** Uncategorized\
**Created:** [October 22, 2012, 3:58pm UTC](https://forum.kirupa.com/t/looking-for-an-event/329834 "2012-10-22T15:58:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![bossmonkey](https://avatars.discourse-cdn.com/v4/letter/b/49beb7/32.png) [@bossmonkey](https://forum.kirupa.com/u/bossmonkey)\
**Post date:** [October 22, 2012, 3:58pm UTC](https://forum.kirupa.com/t/looking-for-an-event/329834/1 "2012-10-22T15:58:43Z")

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Hi,  
I’m writing a Flash app (momentarily using AIR), and I’m looking for an event to fire whenever changes are made to a displayobject’s properties either through code or through animation on the timeline, so I can blit some vector graphics more efficiently, rather than BitmapData.draw-ing a bunch of frames that are exactly the same. Are there any events that do that?

this mx.events.PropertyChangeEvent \*sounds \*like what I may be looking for, but my compiler doesn’t recognize it - it looks like it may only be available in Flex (which I’m not at all familiar with), which seems strange to me.

Help?