獲取被加載SWF的幀頻等信息

var my_loader:Loader=new Loader();
my_loader.load(new URLRequest("swf1.swf"));
my_loader.contentLoaderInfo.addEventListener(Event.INIT, initHandler);
my_loader.contentLoaderInfo.addEventListener(Event.COMPLETE,_SHOW);
function initHandler(event:Event):void {
  var loader:Loader = Loader(event.target.loader);
  var info:LoaderInfo = LoaderInfo(loader.contentLoaderInfo);
  trace(info.frameRate);
  stage.frameRate = info.frameRate;
  addChild(loader);
}
function _SHOW(e:Event):void {
}

獲取被加載SWF的幀頻用：
var info:LoaderInfo = LoaderInfo(loader.contentLoaderInfo);
  trace(info.frameRate);
將被加載SWF的幀頻賦值給主影片的幀頻。
stage.frameRate = info.frameRate;