# Is it possible to create a mask at runtime?

**URL:** <https://forum.kirupa.com/t/is-it-possible-to-create-a-mask-at-runtime/296026>\
**Category:** flash\
**Created:** [September 8, 2009, 8:45pm UTC](https://forum.kirupa.com/t/is-it-possible-to-create-a-mask-at-runtime/296026 "2009-09-08T20:45:20Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![crashcraigr](https://avatars.discourse-cdn.com/v4/letter/c/45deac/32.png) [@crashcraigr](https://forum.kirupa.com/u/crashcraigr)\
**Post date:** [September 8, 2009, 8:45pm UTC](https://forum.kirupa.com/t/is-it-possible-to-create-a-mask-at-runtime/296026/1 "2009-09-08T20:45:20Z")

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Hi all… thanks to anyone who takes the time to reply to this question.

I was wondering if it was possible to create a mask at runtime. To clarify, I have an image that I would like to reveal as a user starts to draw on it.

Thanks