框架类中删除菜单项（来自MSDN）

最新推荐文章于 2024-06-24 17:15:43 发布

转载最新推荐文章于 2024-06-24 17:15:43 发布 · 450 阅读

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#vs2010 #菜单

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本文提供了一个C++示例代码，展示了如何从应用程序的主窗口中删除最左侧的弹出菜单或菜单项。通过获取主窗口及菜单，利用CMenu类的方法DeleteMenu实现删除操作，并重新绘制菜单栏。

转自MSDNhttps://msdn.microsoft.com/zh-cn/library/7xkd69hf.aspx

void CMainFrame::OnCwndDeletefilemenu()
{
   // This example deletes the leftmost popup menu or leftmost
   // popup menu item from the application's main window.
   CWnd* pMain = AfxGetMainWnd();

   // The main window _can_ be NULL, so this code
   // doesn't ASSERT and actually tests.
   if (pMain != NULL)
   {
      // Get the main window's menu
      CMenu* pMenu = pMain->GetMenu();

      // If there is a menu and it has items, we'll
      // delete the first one.
      if (pMenu != NULL && pMenu->GetMenuItemCount() > 0)
      {
         pMenu->DeleteMenu(0, MF_BYPOSITION);
         // force a redraw of the menu bar
         pMain->DrawMenuBar();
      }

      // No need to delete pMenu because it is an MFC
      // temporary object.
   }
}