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  4. Set alpha of DisplayObject when you move the slider


    xmlns:mx="library://ns.adobe.com/flex/mx"
    xmlns:s="library://ns.adobe.com/flex/spark">
    
        
    
    
        private function changeAlpha():void { myImage.graphic.alpha = .5; }
    
    
        
            
                
                    
                
            
        
    
            snapInterval="0.1" liveDragging="true"
        valueCommit="myImage.graphic.alpha=hSlider.value;" />