protected class BasicScrollPaneUI.MouseWheelHandler extends Object implements MouseWheelListener
isWheelScrollingEnabled方法返回false,则不会发生滚动。 
      | Modifier | Constructor and Description | 
|---|---|
| protected  | MouseWheelHandler() | 
public void mouseWheelMoved(MouseWheelEvent e)
mouseWheelMoved在界面 
            MouseWheelListener 
           e - 要处理的MouseWheelEvent 
           MouseWheelEvent 
            Submit a bug or feature 
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