<?xml version="1.0" encoding="utf-8"?>
<mx:Application
    xmlns:mx="http://www.adobe.com/2006/mxml"
    layout="vertical"
    xmlns:local="*">
    <mx:Box width="250" height="250"
    cornerRadius="{cRadius.value}"
    borderStyle="solid"
    borderColor="0xFF0000"
    backgroundColor="0xFFFFFF"
    borderThickness="0" y="10" x="39">
    </mx:Box>
    <mx:HSlider id="cRadius"
        value="20"
        width="200"
        snapInterval="1"
        minimum="0" maximum="125"
        liveDragging="true"/>
</mx:Application>