Question

OnCommand和OnCmdMsg有什么异同

Answer 1

首先两者都是虚函数
CWnd::OnCommand，CCmdTarget::OnCmdMsg
其次作用：
OnCmdMsg :
Called by the framework to route and dispatch command messages and to handle
the update of command user-interface objects.
调用框架路由和调度命令消息和处理更新用户界面对象的命令。
OnCommand: 是响应WM_COMMAND消息
The framework calls this member function when the user selects an item
from a menu, when a child control sends a notification message, or when
an accelerator keystroke is translated.
该框架调用该成员函数当用户选择一个项目从一个菜单,当一个孩子控制发送一个通知消息,或者当一个加速器击键是翻译。