# Event listener between classes

**URL:** <https://forum.kirupa.com/t/event-listener-between-classes/306299>\
**Category:** Uncategorized\
**Created:** [March 12, 2010, 3:22pm UTC](https://forum.kirupa.com/t/event-listener-between-classes/306299 "2010-03-12T15:22:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![LOLFlash](https://avatars.discourse-cdn.com/v4/letter/l/ea666f/32.png) [@LOLFlash](https://forum.kirupa.com/u/LOLFlash)\
**Post date:** [March 12, 2010, 3:22pm UTC](https://forum.kirupa.com/t/event-listener-between-classes/306299/1 "2010-03-12T15:22:00Z")

</div>

Hi

I have a slider what changing zoom in my main class and I have around 30 instances of another class on screen in different movie clips containers.

I want all 30 instances react when in main movie slider change position.

From other words. I want to set event listeners in each child class and dispatch event when its appeared in main movie.

```auto
class main{
private function zoomSldChanged(evt:SliderEvent){
			someObject.dispatchEvent(new Event(Event.CHANGE,true,false));
}
}
 
class sids{
function sids()
someObject.addEventListener(Event.CHANGE,sliderCHANGE);
			}
		
		private function sliderCHANGE(evt:Event){
			trace("Hi");
			
		}
}

```

I feel like I need someObject Object to listen events but  
what is someObject should be?  
Is it possible to do so?  
any help appreciate.