修正鼠标滚轮侦听器后，您将可以不用按钮和滚动窗格。

When the mouse wheel listener bug is fixed, you'll be able to remove the use of the button and scroll pane.

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例如，请考虑下面这个用于gui库可滚动窗格的UML分析图示例。

For example, consider the following example of a UML analysis diagram for scrollable panes for a GUI library.

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另外，只需将鼠标停留在一个房间的名称上，就会显示出其他信息(不需在对话框中滚动窗格)，如房间容量或详细说明等。

In addition, other information, such as room capacity or description, is also displayed (without you having to scroll the pane in the dialog) by simply moving your mouse over a room name.

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