     
     /**
      *  @copy mx.core.IViewport#clipAndEnableScrolling
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 10
+     *  @playerversion AIR 1.5
+     *  @productversion Flex 4
      */
     public function get clipAndEnableScrolling():Boolean 
     {

     *  @param w The new value of <code>contentWidth</code>.
     * 
     *  @param h The new value of <code>contentHeight</code>.
     */
    public function setContentSize(w:Number, h:Number):void
    {

    
    /**
     *  @copy mx.core.IViewport#verticalScrollPositionDelta
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    public function getVerticalScrollPositionDelta(scrollUnit:uint):Number
    {
