# Opaque Background doesn't support \_alpha

**URL:** <https://forum.kirupa.com/t/opaque-background-doesnt-support--alpha/258001>\
**Category:** Uncategorized\
**Created:** [April 19, 2008, 1:02pm UTC](https://forum.kirupa.com/t/opaque-background-doesnt-support--alpha/258001 "2008-04-19T13:02:19Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![smita\_datar](https://avatars.discourse-cdn.com/v4/letter/s/c4cdca/32.png) [@smita\_datar](https://forum.kirupa.com/u/smita_datar)\
**Post date:** [April 19, 2008, 1:02pm UTC](https://forum.kirupa.com/t/opaque-background-doesnt-support--alpha/258001/1 "2008-04-19T13:02:19Z")

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hi

I have created one application in flash where i want to set transparancy for whole application. I am using slider for the same. Using \_root.\_alpha i am doing that. It is wokring fine.

But now i have use opaqueBackground propert for one of the movieclip inside my application. Now if i set \_alpha for \_root it is not working for that perticular movieclip.

what can i do n this case?  
please help !

- Thanks  
smita.