核心思想:由于Windows窗体每次都会重绘其窗体背景,所以我们可以通过拦截窗体重绘背景的消息(WM_ERASEBKGND),并自定义方法来实现重绘窗体背景。通过TImage组件也可以实现,但是重写WM_ERASEBKGND消息的效率更高一些,所以还是推荐使用这种方法。
(2)声明重绘背景消息响应函数
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(3)添加消息映射
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![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
(4)编写自绘背景消息响应函数的代码
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http://www.cnblogs.com/songsu/articles/1336653.html
核心思想:由于Windows窗体每次都会重绘其窗体背景,所以我们可以通过拦截窗体重绘背景的消息(WM_ERASEBKGND),并自定义方法来实现重绘窗体背景。通过TImage组件也可以实现,但是重写WM_ERASEBKGND消息的效率更高一些,所以还是推荐使用这种方法。
(2)声明重绘背景消息响应函数
(3)添加消息映射
(4)编写自绘背景消息响应函数的代码
http://www.cnblogs.com/songsu/articles/1336653.html