Finding the width of a JPEG loaded into a movie clip

Question

I will be loading a page of bio information. Next to the
person's photo (photos will vary in width) I want to put a column
of buttons about 20 pixels to the right of the photo. So after I
load the photo into an empty movie clip, I'm trying to get the
width of the photo in order to figure out the x position of the
buttons next to it. Here is what I have:
myImage = "images/" + _level0.images[link];
loadMovie(myImage,image_mc);
// JPEG loads okay into image_mc //
trace("image_mc._x = " + image_mc._x);
// I get "Image_mc._x = 393" as expected //
trace("myImage._width = " + myImage._width);
// I get "image_mc._width = undefined" //
trace("image_mc._width = " + image_mc._width);
// I get "image_mc._width = 0" //
How do I find the width of the loaded JPEG?

Answer 1

you are probably trying to get the width before the image has
loaded completely.. use the MovieClipLoader class to load the image
into the empty movie clip, then use the onLoadInit event to get the
movie clips's width(which is the images width);
var mcLoader:MovieClipLoader = new MovieClipLoader();
var myListener:Object = new Object();
myListener.onLoadInit = function(target:MovieClip):Void{
trace(image_mc._width);
mcLoader.addListener(myListener);
mcLoader.loadClip(myImage, image_mc);