In windowed mode, this function is synchronous. Right until you set Dealt with to real or maybe the event handler returns, the browser method is blocked and outgoing cross-course of action COM calls will fall short with RPC_E_CANTCALLOUT_ININPUTSYNCCALL. All CoreWebView2 procedures work, nonetheless. In windowless manner, the event is asynchronous. https://color-palette19630.ampedpages.com/how-much-you-need-to-expect-you-ll-pay-for-a-good-color-scheme-64735001