# Parameters and Listeners

**URL:** <https://forum.kirupa.com/t/parameters-and-listeners/315358>\
**Category:** flash\
**Created:** [October 24, 2010, 3:48am UTC](https://forum.kirupa.com/t/parameters-and-listeners/315358 "2010-10-24T03:48:23Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![zerdang](https://avatars.discourse-cdn.com/v4/letter/z/ecb155/32.png) [@zerdang](https://forum.kirupa.com/u/zerdang)\
**Post date:** [October 24, 2010, 3:48am UTC](https://forum.kirupa.com/t/parameters-and-listeners/315358/1 "2010-10-24T03:48:23Z")

</div>

would it be possible for something like this to happen?

```auto
addEventListener(KeyboardEvent.KEY_DOWN, loop);
addEventListener(Event.ENTER_FRAME, loop);

function loop(e:Event, key:KeyboardEvent) {
//do something
}

```

I get the error

> ArgumentError: Error #1063: Argument count mismatch on Turret/loop(). Expected 2, got 1.