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I am wondering if someone can tell me how to force a wait till an asynchronous process finishes. Following is the code that I'm having trouble with: private function stage_1_processing(): void { var inStream:FileStream = new FileStream(); inStream.open(filein, FileMode.READ); var ba:ByteArray = new ByteArray(); inStream.readBytes(ba); inStream.close(); //Transform byteArray to bitmapdata loader = new Loader(); loader.contentLoaderInfo.addEventListener(Event.COMPLETE, stage_2_processing); loader.loadBytes(ba); // this is an asynchronous operation!! } private function stage_2_processing(evt:Event): void { trace("Entering stage 2 processing"); var content:* = loader.content; var bigBMD:BitmapData = new BitmapData(content.width,content.height,true,0x00000000); bigBMD.draw(content,null,null,null,null,true); ...... I want to force the program to wait until the loader.loadBytes process is finished before continuing on to the stage_2_processing function. It seems to 'fall through' to the stage_2_processing logic before the asynchronous loader.loadBytes process is finished. Any assistance/guidance will be much appreciated. Cheers from Oz.