<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
 
    <mx:Script>
        <![CDATA[
            protected function btn_clickHandler(evt:MouseEvent):void {
                swfLdr.source = "subApp.swf?text=" + encodeURIComponent(txtInput.text) + "&color=" + cp.selectedColor;
            }
        ]]>
    </mx:Script>
 
    <mx:ApplicationControlBar dock="true" defaultButton="{btn}">
        <mx:TextInput id="txtInput" maxChars="32" />
        <mx:ColorPicker id="cp" />
        <mx:Button id="btn" label="Send and Load" click="btn_clickHandler(event);" />
    </mx:ApplicationControlBar>
 
    <mx:SWFLoader id="swfLdr" width="320" height="240" />
 
</mx:Application>

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        backgroundColor="haloBlue"
        applicationComplete="init();">
 
    <mx:Script>
        <![CDATA[
            protected function init():void {
                lbl.text = this.loaderInfo.parameters.text;
                lbl.setStyle("color", this.loaderInfo.parameters.color);
            }
        ]]>
    </mx:Script>
 
    <mx:Text id="lbl"
            fontSize="32"
            width="90%" height="90%"
            horizontalCenter="0" verticalCenter="0" />
 
</mx:Application>

package {
    import flash.display.MovieClip;
    import flash.text.TextField;
    import flash.text.TextFormat;
 
    [SWF(width="320", height="240", backgroundColor="#CCCCCC")]
 
    public class subASApp extends MovieClip {
        public var tf:TextField;
 
        public function subASApp() {
            super();
            init();
        }
 
        private function init():void {
            var fmt:TextFormat = new TextFormat();
            fmt.font = "Arial";
            fmt.size = 24;
            if (this.loaderInfo.parameters.hasOwnProperty("color")) {
                fmt.color = parseInt(this.loaderInfo.parameters.color);
            }
 
            tf = new TextField();
            tf.width = 300;
            tf.height = 220;
            tf.x = 10;
            tf.y = 10;
            tf.wordWrap = true;
            tf.multiline = true;
            tf.defaultTextFormat = fmt;
            tf.text = this.loaderInfo.parameters.text;
            if (tf.text.length == 0) {
                tf.text = "(default)";
            }
            addChild(tf);
        }
    }
}

var serverName : String URLUtil.getServerName(Application.application.loaderInfo.url;
var request:URLRequest = new URLRequest();
request.url = "https://" + serverName + ":8443/appContext/uploadServlet";
fileReference.upload(request);