# How to refer to stage inside a class in external .as

**URL:** <https://forum.kirupa.com/t/how-to-refer-to-stage-inside-a-class-in-external-as/229347>\
**Category:** flash\
**Created:** [June 16, 2007, 3:49am UTC](https://forum.kirupa.com/t/how-to-refer-to-stage-inside-a-class-in-external-as/229347 "2007-06-16T03:49:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ponsho](https://avatars.discourse-cdn.com/v4/letter/p/ecd19e/32.png) [@ponsho](https://forum.kirupa.com/u/ponsho)\
**Post date:** [June 16, 2007, 3:49am UTC](https://forum.kirupa.com/t/how-to-refer-to-stage-inside-a-class-in-external-as/229347/1 "2007-06-16T03:49:07Z")

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How can i add a listener to the stage, i need to listen the mouse wheel, so i guess i nedd to add a listener to the stage, but i dont know how to refer to it inside a class.