var loader:URLLoader = new URLLoader(); var request:URLRequest = new URLRequest("http://www.flickr.com/tools/uploader_go.gne"); var httpdata:HTTPPostBinary = new HTTPPostBinary(); httpdata.addBinary("photo", jpegDat, "image/jpeg", "snap.jpg"); request.contentType = httpdata.contentType; request.method = httpdata.method; request.data = httpdata.encodeData(); loader.load(request); このように簡単に利用できます。 以下