1、新建菜单资源
2、添加到对话框里
3、手动在对话框CPP文件的MESSAGE_MAP里添加ON_WM_INITMENUPOPUP()消息
4、手动添加消息响应函数 OnInitMenuPopup(CMenu *pPopupMenu, UINT nIndex, BOOL bSysMenu)
5、把下面函数里的东西加上就行了，这些东西都是单文档里的。void CXXXXXDlg::OnInitMenuPopup(CMenu *pPopupMenu, UINT nIndex, BOOL bSysMenu){ASSERT(pPopupMenu != NULL);// Check the enabled state of various menu items.CCmdUI state;state.m_pMenu = pPopupMenu;ASSERT(state.m_pOther == NULL);ASSERT(state.m_pParentMenu == NULL);// Determine if menu is popup in top-level menu and set m_pOther to// it if so (m_pParentMenu == NULL indicates that it is secondary popup).HMENU hParentMenu;if (AfxGetThreadState()->m_hTrackingMenu == pPopupMenu->m_hMenu){state.m_pParentMenu= pPopupMenu; // Parent == child for tracking popup.}else if ((hParentMenu = ::GetMenu(m_hWnd)) != NULL){CWnd* pParent = this;// Child windows don't have menus--need to go to the top!if (pParent != NULL && (hParentMenu = ::GetMenu(pParent->m_hWnd)) != NULL){int nIndexMax = ::GetMenuItemCount(hParentMenu);for (int nIndex = 0; nIndex < nIndexMax; nIndex++){if (::GetSubMenu(hParentMenu, nIndex) == pPopupMenu->m_hMenu){// When popup is found, m_pParentMenu is containing menu.state.m_pParentMenu = CMenu::FromHandle(hParentMenu);break;}}}}state.m_nIndexMax = pPopupMenu->GetMenuItemCount();for (state.m_nIndex = 0; state.m_nIndex < state.m_nIndexMax;state.m_nIndex++){state.m_nID = pPopupMenu->GetMenuItemID(state.m_nIndex);if (state.m_nID == 0){continue; // Menu separator or invalid cmd - ignore it.}ASSERT(state.m_pOther == NULL);ASSERT(state.m_pMenu != NULL);if (state.m_nID == (UINT)-1){// Possibly a popup menu, route to first item of that popup.state.m_pSubMenu = pPopupMenu->GetSubMenu(state.m_nIndex);if (state.m_pSubMenu == NULL|| (state.m_nID = state.m_pSubMenu->GetMenuItemID(0)) == 0|| state.m_nID == (UINT)-1){continue; // First item of popup can't be routed to.}state.DoUpdate(this, TRUE); // Popups are never auto disabled.}else{// Normal menu item.// Auto enable/disable if frame window has m_bAutoMenuEnable// set and command is _not_ a system command.state.m_pSubMenu = NULL;state.DoUpdate(this, FALSE);}// Adjust for menu deletions and additions.UINT nCount = pPopupMenu->GetMenuItemCount();if (nCount < state.m_nIndexMax){state.m_nIndex -= (state.m_nIndexMax - nCount);while (state.m_nIndex < nCount&& pPopupMenu->GetMenuItemID(state.m_nIndex) == state.m_nID){state.m_nIndex++;}}state.m_nIndexMax = nCount;}}