CefSharp 屏蔽右键菜单

        internal class MenuHandler : IMenuHandler
        {
            public bool OnBeforeContextMenu(IWebBrowser browser, IContextMenuParams parameters)
            {
                return false;
            }
        }

  string url =  "http://www.baidu.com";
  CefSharp.WinForms.ChromiumWebBrowser wb = new CefSharp.WinForms.ChromiumWebBrowser(url);
  wb.Dock = DockStyle.Fill;
  this.Controls.Add(wb);
  wb.MenuHandler = new MenuHandler();