# Transitions and masking using actionscript?

**URL:** <https://forum.kirupa.com/t/transitions-and-masking-using-actionscript/103651>\
**Category:** Uncategorized\
**Created:** [March 7, 2004, 11:01pm UTC](https://forum.kirupa.com/t/transitions-and-masking-using-actionscript/103651 "2004-03-07T23:01:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Col127](https://avatars.discourse-cdn.com/v4/letter/c/dec6dc/32.png) [@Col127](https://forum.kirupa.com/u/Col127)\
**Post date:** [March 7, 2004, 11:01pm UTC](https://forum.kirupa.com/t/transitions-and-masking-using-actionscript/103651/1 "2004-03-07T23:01:49Z")

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i was also wondering if it’s possible to make transitions with masks using actionscript?

i have section headers that i want to transition when certain buttons are clicked, and depending on what button is clicked, a new section header is shown. i put all the section headers in a movie clip, with different frame names, so when the button is clicked, it jumps to the different frame name of the movie clip.

for the transition, i basically want a wipe left to reveal the section header… and a wipe right to hide it… and to do this, i figure i’d need to mask…

so i put a mask over the movie clip and realized that flash doesn’t mask movie clips very well, when using masking layers… so it doesn’t really work properly.

is there a way to do this using actionscript? and if so, how? i know flash know has a setmask property for movieclips…but can you modify the mask property’s size??

thanks!