Since the object returned by the getVPAID() call is not always reference to the ad, the _ad property is meant to be a reference to the ad's top DisplayObject which can be used to determine if the ad is running as full-screen. The adVolume property is a child of the VPAID object, not (necessarily) the ad object.
Since the object returned by the getVPAID() call is not always reference to the ad, the _ad property is meant to be a reference to the ad's top DisplayObject which can be used to determine if the ad is running as full-screen. The adVolume property is a child of the VPAID object, not (necessarily) the ad object.