[Codemonkey]

 
If you use the EventDispatcher to allow listeners to listen for events on your object, your object gets a list for these listeners and a bunch of functions like dispatchEvent etc. To access this array of listeners, use the property "__q_" on your object. This is the name of the array the EventDispatcher adds to your object:

Setting up the event dispatching object and a listener:

import mx.events.EventDispatcher;
var eventsource:Object = new Object();
EventDispatcher.initialize(eventsource);
 
var listener = new Object();
listener.foo = function (eventObj:Object) {
        trace(eventObj.message); // "I like apple pie!"
}
 
eventsource.addEventListener("foo", listener);
eventsource.dispatchEvent({type:"foo", target:this, message:"I like apple pie!"}); 

Get access to the array of listeners:

trace(eventsource["__q_" + "foo"] instanceof Array); // traces "true"
trace(eventsource["__q_" + "foo"].length); // traces "1"