# TransitionManager and masking?

**URL:** <https://forum.kirupa.com/t/transitionmanager-and-masking/205081>\
**Category:** Uncategorized\
**Created:** [October 25, 2006, 11:26pm UTC](https://forum.kirupa.com/t/transitionmanager-and-masking/205081 "2006-10-25T23:26:52Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![vincetopia](https://avatars.discourse-cdn.com/v4/letter/v/b77776/32.png) [@vincetopia](https://forum.kirupa.com/u/vincetopia)\
**Post date:** [October 25, 2006, 11:26pm UTC](https://forum.kirupa.com/t/transitionmanager-and-masking/205081/1 "2006-10-25T23:26:52Z")

</div>

i was wondering how i could use this code to mask an object behind it.

```auto
import mx.transitions.*;
import mx.transitions.easing.*;
TransitionManager.start(img1_mc, {type:Iris, direction:Transition.IN, duration:2, easing:Strong.easeOut, startPoint:5, shape:Iris.CIRCLE}); 

```