Delphi:Delphi中的OnChange事件如何使用呢？这个源码通过使用Timagelist组件来演示OnChange事件的处理，运行示例程序后，点击窗体上的“删除图像”按钮，OnChange就会激发，判断图像列表是否发生了变化，并弹出提示告诉你结果怎么了。

-Delphi: Delphi OnChange event in how to use it? After this source by using Timagelist components to demonstrate treatment, run the sample program OnChange event, click the "Delete Image" button on the form, OnChange will inspire determine whether the change in the image list, and pop-up prompts tell you how the results .