📜  如何检查滚动条是否可见?

📅  最后修改于: 2022-05-13 01:55:59.397000             🧑  作者: Mango

如何检查滚动条是否可见?

滚动条是一个小部件,其中放置了一些内容,并且该内容可以由用户沿指定方向滚动。要检查滚动条是否可见,我们可以使用我们自己的自定义函数。

示例 1:此示例显示了一个简单的代码片段,可用于检查水平或垂直滚动条是否可见。



  

    
    
    
    

  

    
        
    
                

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示例 2:



  

    
    

  

    
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