<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/08/24/setting-the-volume-on-a-videodisplay-control-in-flex/ -->
<mx:Application name="VideoDisplay_volume_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
         layout="vertical"
         verticalAlign="middle"
         backgroundColor="white" viewSourceURL="srcview/index.html">

    <mx:ApplicationControlBar dock="true">
        <mx:Form styleName="plain">
            <mx:FormItem label="volume:">
                <mx:HSlider id="slider"
                        minimum="0.0"
                        maximum="1.0"
                        value="0.7"
                        snapInterval="0.01"
                        tickInterval="0.1"
                        liveDragging="true" />
            </mx:FormItem>
        </mx:Form>
    </mx:ApplicationControlBar>

    <mx:VideoDisplay id="videoDisplay"
            source="http://www.helpexamples.com/flash/video/cuepoints.flv"
            volume="{slider.value}"
            autoPlay="false" />

    <mx:Button id="playBtn"
            label="Play"
            click="videoDisplay.play();"
            enabled="{!videoDisplay.playing}" />

</mx:Application>