It should be called with the same parameters as those received by the window procedure.
它必须用与窗口过程接收到的参数相同的参数来调用。
Send scroll bar messages to the window procedure of the window containing the scroll bar.
发送滚动条消息给包含滚动条的窗口的窗口处理函数。
The window procedure for a toolbar automatically sets the size and position of the toolbar window.
工具条的窗口处理会自动设置其自身的大小、位置。
The WM_CANCELJOURNAL message has a NULL window handle, therefore it cannot be dispatched to a window procedure.
CANCELJOURNAL消息包含一个空窗体句柄，因此不能被分派给窗体程序。
The window class defines the window procedure and some other characteristics of the windows that are created based on that class.
窗口类定义了窗口过程和基于那个类创建出来的窗口的特性。
Calls the default window procedure, which provides default processing for any window message that an application does not process.
这个函数调用缺省的窗口过程，提供了对应用程序没有处理的任何窗口消息的缺省处理。
A dialog box procedure is similar to a window procedure, but usually processes only dialog initialization and user-input messages.
一个对话框过程类似于一个窗口过程，但它常常只是处理对话框的初始化和用户的输入消息。
The MFC common window procedure automatically switches to the correct module state, so you do not need to worry about it in any message handlers implemented in your regular DLL.
MFC 的通用窗口过程会自动切换到正确的模块状态，因此您无需担心在规则DLL中实现的任何消息处理程序中的模块状态。
The MFC common window procedure automatically switches to the correct module state, so you do not need to worry about it in any message handlers implemented in your regular DLL.
MFC 的通用窗口过程会自动切换到正确的模块状态，因此您无需担心在规则DLL中实现的任何消息处理程序中的模块状态。
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