VCL窗口函数注册机制研究手记

我们知道Windows平台上的GUI程序都必须遵循Windows的消息响应机制，可以简单概括

如下，所有的窗口控件都向系统注册自身的窗口函数，运行期间消息可被指派至特定窗口控件的窗口函数处理。-VCL window function study of Notes registration system we know that on the Windows platform GUI programs must follow the Windows message response mechanism, can be simply summarized as follows, all the window controls are registered to the system' s own window function, run-time information can be assigned to specific window function to deal with the window controls.