---
description: The caller implements this interface to receive CallDevToolsProtocolMethod completion results.
title: WebView2 Win32 C++ ICoreWebView2CallDevToolsProtocolMethodCompletedHandler
author: MSEdgeTeam
ms.author: msedgedevrel
ms.date: 10/07/2020
ms.topic: reference
keywords: IWebView2, IWebView2WebView, webview2, webview, win32 apps, win32, edge, ICoreWebView2, ICoreWebView2Controller, browser control, edge html, ICoreWebView2CallDevToolsProtocolMethodCompletedHandler
---

# interface ICoreWebView2CallDevToolsProtocolMethodCompletedHandler 

```
interface ICoreWebView2CallDevToolsProtocolMethodCompletedHandler
  : public IUnknown
```

The caller implements this interface to receive CallDevToolsProtocolMethod completion results.

## Summary

 Members                        | Descriptions
--------------------------------|---------------------------------------------
[Invoke](#invoke) | Called to provide the implementer with the completion status and result of the corresponding asynchronous method call.

## Members

#### Invoke 

Called to provide the implementer with the completion status and result of the corresponding asynchronous method call.

> public HRESULT [Invoke](#invoke)(HRESULT errorCode, LPCWSTR returnObjectAsJson)

