# ArcBufferReader.Peek(long)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.buffers.arcbufferreader/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.buffers.arcbufferreader/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization/Buffers/ArcBufferWriter.cs#L1094-L1099)

```csharp
public byte Peek(long offset)
```

Peeks at a byte at the specified offset into the unread data.

### Parameters

- `offset` (`long`): The offset into the unread data.

### Returns

The byte at the specified offset.