addEventListener question

[absolutezero342]

When you use addEventListener functions, is there any way to add parameters to the function that is called? for example:

some_mc.addEventListener(Event.ENTER_FRAME, onEnterFrame);

function onEnterFrame(e:Event):void {

    //  some code...

}

is there any way to add parameters to the function "onEnterFrame" other than the event parameter? if so, how do you handle this? could you provide an example? Thx!

[5TonsOfFlax]

I got this one, cancerinform.
http://board.flashkit.com/board/show...hlight=passing

We should put that on a t-shirt or something.

[nonameusername]

some_mc.addEventListener(Event.ENTER_FRAME, onEnterFrame);
some_mc.arg = some_arguement;
function onEnterFrame(event:Event):void {
trace(event.target.parent.arg);
}

// Hey man, first I thought this method would only work with dynamically created movieclips, but I tested it out and it works. I don't actually know why you have to add that parent in there, but it doesn't work without the parent. I haven't tried with events like onEnterFrame, but this works for button behavior.

[absolutezero342]

I'm not surprised it works, but I am surprised you need the parent in THIS example. "event" specifies the "ENTER_FRAME" event in this case, "target" specifies who triggered the event, which would be "some_mc" in this case, and "parent" seems like it would specify the parent of "some_mc", which would depend on where "some_mc" lives and where it's being called from.

[DallasNYC]

I believe you should be using 'currentTarget' with no parent.

'currentTarget' returns the actual object that the listener is attached to.
'target' returns a related object which is different depending on the type of listener. (hope I am explaining that right)

Say you have a movieClip called 'box' with a MouseEvent.CLICK listener on it. And inside of that clip is another movieClip called 'circle'.
If you click on the 'box' clip, 'currentTarget' will return the 'box' object and 'target' will return the 'box' object.
If you click on the 'circle' clip inside the 'box' clip, 'currentTarget' will still return 'box' as that is where the listener is attached, and 'target' will return the 'circle' object, as that was what was actaully pressed on.

Although in my playing with ENTER_FRAME, target and currentTarget are returning the same thing..

some_mc.addEventListener(Event.ENTER_FRAME, myonEnterFrame);
some_mc.arg = "some_arguement";
function myonEnterFrame(event:Event):void {
trace(event.currentTarget.arg);//traces 'some_argument'
trace(event.target.arg)//traces 'some_argument'
trace(event.target.parent.arg)//trace 'undefined'
}

[absolutezero342]

cool, that'll be useful....thanks for the explanation!