# Set base class (behaviour) in pure AS3?

**URL:** <https://forum.kirupa.com/t/set-base-class-behaviour-in-pure-as3/315289>\
**Category:** flash\
**Created:** [October 22, 2010, 4:02am UTC](https://forum.kirupa.com/t/set-base-class-behaviour-in-pure-as3/315289 "2010-10-22T04:02:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![arundracula](https://avatars.discourse-cdn.com/v4/letter/a/5f8ce5/32.png) [@arundracula](https://forum.kirupa.com/u/arundracula)\
**Post date:** [October 22, 2010, 4:02am UTC](https://forum.kirupa.com/t/set-base-class-behaviour-in-pure-as3/315289/1 "2010-10-22T04:02:50Z")

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In flash CS3 we can set a base class. What if I do artworks in Flash 8 and code in Flashdevelop? How do I achieve the base class functionality in this situation?