是在classview里正常添加的,并且实现了函数。protected:
//{{AFX_MSG(CMultiViewDemoView)
afx_msg void OnFile();
//}}AFX_MSGBEGIN_MESSAGE_MAP(CMultiViewDemoView, CView)
//{{AFX_MSG_MAP(CMultiViewDemoView)
ON_COMMAND(ID_FILE, CMultiViewDemoView::OnFile)
END_MESSAGE_MAP()
//{{AFX_MSG(CMultiViewDemoView)
afx_msg void OnFile();
//}}AFX_MSGBEGIN_MESSAGE_MAP(CMultiViewDemoView, CView)
//{{AFX_MSG_MAP(CMultiViewDemoView)
ON_COMMAND(ID_FILE, CMultiViewDemoView::OnFile)
END_MESSAGE_MAP()
解决方法:在主框架里作菜单消息响应函数,函数里把该消息发送到你的视图类。