I'd love to be able to prevent dragging of a HDividedBox's divider based on a condition. for example:

<mx:HDividedBox id="hd1" liveDragging="true" dividerDrag="dividerDragHandler(event)">

    <Canvas id="c1"/>
    <Canvas id="c2"/>

</HDividedBox>

private function dividerDragHandler(event:DividerEvent):void  
{  
if (_something > 10)  
    {  
        event.preventDefault();  
    }  
}  

Any ideas how I can do something like that? And I'd rather not mess with the widths of the child canvases. Thanks.