Class hooks the native tree view control s parent to a managed window procedure as performed by the 类将本机树视图控件的父级挂钩到一个托管窗口过程，如
You can use this structure to wrap a message and assign it to the window procedure to be dispatched 可使用该结构包装消息，并将其分配给窗口过程以进行调度。
If a message needs further processing , it is sent to the original window procedure of the window class 如果消息需要进一步处理，则将其发送到窗口类的原始窗口过程。
Defines the owner window procedure that is overridden to add specific functionality to a common dialog box 定义要重写的所有者窗口过程，以便向通用对话框添加特定功能。
This is achieved by substituting a native control s window procedure wndproc with a generic window procedure , 此功能通过将本机控件的窗口过程( wndproc )替换为通用窗口过程
Superclassing allows you to create a window class that is based on an existing class but uses a different window procedure 创建超类使您得以创建基于现有类但使用不同窗口过程的窗口类。
Define menu ids for use in the window procedure . these values must be identical to those defined in the resource file 定义在窗口过程中使用的菜单项id值。这些值必须同定义在资源文件中的值一样。
That performs a look - up to determine if the control is in a list of controls associated with callback methods to be invoked 来实现，该通用窗口过程执行查找，以确定该控件是否在与调用的回调方法关联的控件列表中。
When you superclass a control , messages are first processed by an atl message map before being sent to the control s original window procedure 当为控件创建超类时，在将消息发送到控件的原始窗口过程之前，先由atl消息映射进行处理。
The application must read the message queue , retrieve the messages , and dispatch them so that the window procedure can process them 应用程序必须从消息队列中读取消息，检索并将它们发送到窗口过程，这样做是为了让窗口过程能够处理它们。
