标签: 菜单

2.1 如何动态添加和删除菜单项 AppendMenu InsertMenu DeleteMenu pre class="code" ///////////////////////////////////////////////////////////////////////////// // CMainFrame message handlers void CMainFrame::OnAppendMenu() { //获得主菜单 CMenu* pMenu = GetMenu(); //获得子菜单 CMenu* pSubMenu = pMenu-GetSubMenu(4); if (pSubMenu-GetMenuItemCount() == 4) { //在菜单末端添加菜单项 pSubMenu-AppendMenu(MF_STRING, ID_TEST_MENU, _T( "新菜单项" )); //重画菜单 DrawMenuBar(); } } void CMainFrame::OnInsertMenu() { //获得主菜单 CMenu* pMenu = GetMenu(); //获得子菜单 CMenu* pSubMenu = pMenu-GetSubMenu(4); if (pSubMenu-GetMenuItemCount() == 4) { //在菜单指定位置添加菜单项 pSubMenu-InsertMenu(4, MF_BYPOSITION, ID_TEST_MENU, _T( "新菜单项" )); //重画菜单 DrawMenuBar(); } } void CMainFrame::OnRemoveMenu() { //获得主菜单 CMenu* pMenu = GetMenu(); //获得子菜单 CMenu* pSubMenu = pMenu-GetSubMenu(4); if (pSubMenu-GetMenuItemCount() == 5) { //删除菜单项 pSubMenu-RemoveMenu(4, MF_BYPOSITION); //重画菜单 DrawMenuBar(); } } void CMainFrame::OnDeleteMenu() { //获得主菜单 CMenu* pMenu = GetMenu(); //获得子菜单 CMenu* pSubMenu = pMenu-GetSubMenu(4); if (pSubMenu-GetMenuItemCount() == 5) { //删除菜单项 pSubMenu-DeleteMenu(4, MF_BYPOSITION); //重画菜单 DrawMenuBar(); } } void CMainFrame::OnTestMenu() { AfxMessageBox(_T( "测试菜单项命令" )); } /pre   2.2 如何在系统菜单中添加菜单项 GetSystemMenu pre class="code" //获得系统菜单 CMenu* pMenu = GetSystemMenu(FALSE); //删除系统菜单项 pMenu-RemoveMenu(SC_MOVE, MF_STRING); //添加菜单项 pMenu-InsertMenu(0, MF_BYPOSITION, ID_TEST_MENU, _T( "测试菜单项" )); //重画菜单 DrawMenuBar(); /pre   2.3 如何禁用关闭按钮 EnableMenuItem pre class="code" //获得系统菜单 CMenu* pMenu = GetSystemMenu(FALSE); //禁用关闭按钮 pMenu-EnableMenuItem(SC_CLOSE, MF_BYCOMMAND | MF_GRAYED); /pre   2.4 如何启用和禁用菜单项 CCmdUI的Enable方法 pre class="code" void CMainFrame::OnTestMenu1() { m_bEnable1 = FALSE; m_bEnable2 = TRUE; } void CMainFrame::OnUpdateTestMenu1(CCmdUI* pCmdUI) { //启用或禁用菜单1 pCmdUI-Enable(m_bEnable1); } void CMainFrame::OnTestMenu2() { m_bEnable1 = TRUE; m_bEnable2 = FALSE; } void CMainFrame::OnUpdateTestMenu2(CCmdUI* pCmdUI) { //启用或禁用菜单2 pCmdUI-Enable(m_bEnable2); } /pre 2.5 如何设置菜单项的检查状态 SetCheck方法 pre class="code" void CMainFrame::OnUpdateTestMenu(CCmdUI* pCmdUI) { //设置菜单项检查状态 pCmdUI-SetCheck(m_nCheck); } /pre 2.6 如何实现快捷菜单 即右键菜单ContextMenu pre class="code" void CDemoView::OnContextMenu(CWnd* pWnd, CPoint point) { CMenu menu; //加载菜单 if (!menu.LoadMenu(IDR_MENU)) { return ; } //获得子菜单 CMenu* pPopupMenu = menu.GetSubMenu(0); //弹出菜单 pPopupMenu-TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON, point.x, point.y, pWnd); } void CDemoView::OnTestMenu1() { AfxMessageBox(_T( "快捷菜单项1命令" )); } void CDemoView::OnTestMenu2() { AfxMessageBox(_T( "快捷菜单项2命令" )); } /pre