ActionScript 3.0 :: Get A Reference To The Main Display Object?

Right now I have a library that does something like this:

public class Main extends Sprite{
public function Main():void {
MyLibrary.init(this);
// the rest of your code goes here
}
}

I need the user to do that since I need a reference to the current DisplayObject since I need to access loaderInfo.sharedEvents

Is it possible to get a reference to the displayobject or to the loaderInfo of the movie currently being played (maybe it's a static var of some class?)?

I was thinking on something like. flash.system.ApplicationDomain.currentDomain is there something like.. flash.display.DisplayObject._root?

In AS2 this would be trivial but I'm afraid this may not be possible in AS3 .. and I really need to get rid of that "init" call.