Flash Tip: Get the width of an external movie

Skill _root.createemptymovieclip ("MC", _root.getnexthighestdepth ());
Mc.loadmovie ("logo.gif");
Trace (mc._width);

The result, though, is 0, because the Loadmovie has a delay, and the external real movie can be loaded into the Loadmovie after the second frame. So:

_root.createemptymovieclip ("MC", _root.getnexthighestdepth ());
Mc.loadmovie ("logo.gif");
_root.onenterframe = function () {
Trace (mc._width);
};

The effect is coming out.
0
88
88
88
.......
Also to be noted are:
1. Do not write _root.onenterframe = Mc.onenterframe = Because the load will overwrite the original event.

2. When Loadmovie calls SWF, the movie's _width is not the publication width of the movie, it is the width of the current frame maximum coverage and the MC principle is the same