public partial class Form1 : Form
    {
        private static string WebUrl = "";
        private static string WebName = "";
        public Form1()
        {
            InitializeComponent();

            // Start the browser after initialize global component
            InitializeChromium();
             
        }

        private ChromiumWebBrowser chromeBrowser = null;

        private void Form1_Load(object sender, EventArgs e)
        {
            //chromeBrowser.ShowDevTools();
            chromeBrowser.MenuHandler = new MenuHandler();
            
        }

        private void InitializeChromium()
        {
            //string page = string.Format(@"{0}\assets\test.html", Application.StartupPath);
            //if (!File.Exists(page))
            //{
            //    MessageBox.Show("未找到网页文件：" + page);
            //}
            XmlModel.Config _model = DataOperation.Instance.GetConfig();
            if (_model != null)
            {
                WebUrl = _model.WebUrl;
                WebName = _model.WebName;

            }
            this.Text = WebName;
            string page = WebUrl; 

            // Initialize cef with the provided settings
            CefSettings settings = new CefSettings();
            settings.CefCommandLineArgs.Add("disable-gpu", "1");//添加禁用GPU，解决偏移问题
            Cef.Initialize(settings);
            // Create a browser component
            chromeBrowser = new ChromiumWebBrowser(page);

            // Add it to the form and fill it to the form window.
            this.Controls.Add(chromeBrowser);
            this.WindowState = FormWindowState.Maximized;
            chromeBrowser.Dock = DockStyle.Fill;

            // Allow the use of local resources in the browser
            BrowserSettings browserSettings = new BrowserSettings();
            browserSettings.FileAccessFromFileUrls = CefState.Enabled;
            browserSettings.UniversalAccessFromFileUrls = CefState.Enabled;
            chromeBrowser.BrowserSettings = browserSettings;

            CefSharpSettings.LegacyJavascriptBindingEnabled = true;

            // Register an object in javascript named "cefCustomObject" with function of the CefCustomObject class :3
            chromeBrowser.RegisterJsObject("cefCustomObject", new CefCustomObject(chromeBrowser));
        }
        protected override void WndProc(ref Message m)
        {
            if (m.Msg == 0x112)
            {
                switch ((int)m.WParam)
                {
                    //禁止双击标题栏关闭窗体
                    case 0xF063:
                    case 0xF093:
                        m.WParam = IntPtr.Zero;
                        break;

                    //禁止拖拽标题栏还原窗体
                    case 0xF012:
                    case 0xF010:
                        m.WParam = IntPtr.Zero;
                        break;

                    //禁止双击标题栏
                    case 0xf122:
                        m.WParam = IntPtr.Zero;
                        break;


                    //允许关闭按钮
                    case 0xF060:
                        //m.WParam = IntPtr.Zero;
                        break;

                    ////允许最大化按钮
                    //case 0xf020:
                    //    //m.WParam = IntPtr.Zero;
                    //    break;

                    ////允许最小化按钮
                    //case 0xf030:
                    //    //m.WParam = IntPtr.Zero;
                    //    break;

                    ////允许还原按钮
                    //case 0xf120:
                    //    //m.WParam = IntPtr.Zero;
                    //    break;

                    default:
                        m.WParam = IntPtr.Zero;
                        break;
                }
            }
            base.WndProc(ref m);
        } 
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            Cef.Shutdown();
        }


        /// <summary>
        /// 屏蔽右键
        /// </summary>
        internal class MenuHandler : IContextMenuHandler
        {
            public bool OnBeforeContextMenu(IWebBrowser browser, IBrowser ibrower, IFrame iframe, IContextMenuParams icontextmenuparams, IMenuModel imenumodel)
            {
                return false;
            }
            void CefSharp.IContextMenuHandler.OnBeforeContextMenu(CefSharp.IWebBrowser browserControl, CefSharp.IBrowser browser, CefSharp.IFrame frame, CefSharp.IContextMenuParams parameters, CefSharp.IMenuModel model)
            {
                model.Clear();
            }

            bool CefSharp.IContextMenuHandler.OnContextMenuCommand(CefSharp.IWebBrowser browserControl, CefSharp.IBrowser browser, CefSharp.IFrame frame, CefSharp.IContextMenuParams parameters, CefSharp.CefMenuCommand commandId, CefSharp.CefEventFlags eventFlags)
            {
                //throw new NotImplementedException();
                return false;
            }

            void CefSharp.IContextMenuHandler.OnContextMenuDismissed(CefSharp.IWebBrowser browserControl, CefSharp.IBrowser browser, CefSharp.IFrame frame)
            {
                //throw new NotImplementedException();
            }

            bool CefSharp.IContextMenuHandler.RunContextMenu(CefSharp.IWebBrowser browserControl, CefSharp.IBrowser browser, CefSharp.IFrame frame, CefSharp.IContextMenuParams parameters, CefSharp.IMenuModel model, CefSharp.IRunContextMenuCallback callback)
            {
                return false;
            }
        }
    }