<?xml version="1.0" encoding="utf-8"?>
<mx:ApolloApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">

    <mx:Script>
        <![CDATA[
            public function toggleFullScreen():void {}
        ]]>
    </mx:Script>

    <mx:TitleWindow title="myTitleWindow">
        <mx:VideoDisplay id="myVideo" autoPlay="true">
            <mx:source>myVideo.flv</mx:source>
        </mx:VideoDisplay>
        <mx:ControlBar>
            <mx:Button label="fullScreen" click="toggleFullScreen()"/>
        </mx:ControlBar>
    </mx:TitleWindow>
    
</mx:ApolloApplication>

                switch(stage.displayState) {
                    case "normal":
                        stage.displayState = "fullScreen";    
                        break;
                    case "fullScreen":
                        stage.displayState = "normal";    
                        break;
                    default:
                        stage.displayState = "normal";    
                        break;
                }

import flash.geom.*;
function goFullScreen()
{
    Stage["fullScreenSourceRect"] = new Rectangle(0, 0, Stage.width, Stage.height);
    Stage["displayState"] = "fullScreen";
}

    // when going out of full screen mode
    // we use these values
    myVideo.savedWidth = myVideo.width;
    myVideo.savedHeight = myVideo.height;
    myVideo.savedSmoothing = myVideo.smoothing;
    myVideo.savedDeblocking = myVideo.deblocking;


    myVideo.smoothing = false;
    myVideo.deblocking = 0;