User Guide

MovieClip.loadMovie() 539

Using event handlers with MovieClip.loadMovie() can be unpredictable. If you attach an event

handler to a button using

on() or if you create a dynamic handler using an event handler method

such as

MovieClip.onPress, and then you call loadMovie(), the event handler does not remain

after the new content is loaded. However, if you attach an event handler to a movie clip using

onClipEvent() or

on(), and then call loadMovie() on that movie clip, the event handler remains

after the new content is loaded.

You can extend the methods and event handlers of the MovieClip class by creating a subclass. For

more information, see “Assigning a class to a movie clip symbol” in Using ActionScript in Flash.

Example

As shown in the following example, you can use loadMovie() to load the image picture.jpg into

a movie clip and use the

MovieClip.onPress() method to make the image act like a button.

Loading a JPEG using

loadMovie() replaces the movie clip with the image but doesn’t give you

access to movie clip methods. To get access to movie clip methods, you must create an empty

parent movie clip and a container child movie clip. Load the image into the container and place

the event handler on the parent movie clip.

// Creates a parent movie clip to hold the container

this.createEmptyMovieClip("logo_mc", this.getNextHighestDepth());

// creates a child movie clip inside of "mc_1"

// this is the movie clip the image will replace

logo_mc.createEmptyMovieClip("container_mc",0);

logo_mc.container_mc.loadMovie("http://www.macromedia.com/images/shared/

product_boxes/80x92/studio_flashpro.jpg");

// put event handler on the parent movie clip mc_1

logo_mc.onPress = function() {

trace("It works");

};