# UnregisterMessageHandler

> Unregisters a specific channel handler from a ChannelClient.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.MPE](/engine/6000.6/script-reference/unityeditor/mpe.md)
* **Assembly:** UnityEditor.CoreModule

## UnregisterMessageHandler(Action\<string>)

Unregisters a specific channel handler from a ChannelClient.

```csharp
public void UnregisterMessageHandler(Action<string> handler)
```

### Parameters

**** (\[Action\<string>]\(https\://learn.microsoft.com/dotnet/api/system.action)): The handler to unregister.

## UnregisterMessageHandler(Action\<byte\[]>)

Unregisters a specific channel handler from a ChannelClient.

```csharp
public void UnregisterMessageHandler(Action<byte[]> handler)
```

### Parameters

**** (\[Action\<byte\[]>]\(https\://learn.microsoft.com/dotnet/api/system.action)): The handler to unregister.