In windowed mode, this celebration is synchronous. Until you set Managed to true or even the celebration handler returns, the browser procedure is blocked and outgoing cross-method COM phone calls will are unsuccessful with RPC_E_CANTCALLOUT_ININPUTSYNCCALL. All CoreWebView2 techniques get the job done, however. In windowless mode, the celebration is asynchronous. https://jamesg062hsu4.wikipublicity.com/user