message reflection

基本解释

This technical note describes message reflection, a new feature in MFC 4.0.
本技术注意讲述了消息反射，一个 MFC4.0 中的新特色。
It also contains directions for creating a simple reusable control that uses message reflection.
同时讲述了使用消息反射建立一个简单可重用控件的指导。
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Older versions of MFC did something similar to message reflection by providing virtual functions for a few messages, such as messages for owner-drawn list boxes (WM_DRAWITEM, and so on).
MFC旧版本通过为一些消息提供虚函数的机制部分实现了类似的功能，最典型的就是自绘制的列表框（WM_DRAWITEM等等）。

But they say this is more a reflection on the nature of the message then the writer's ability to use language correctly.