---
title: "copyBytes(to:)"
framework: coremedia
role: symbol
role_heading: Instance Method
path: "coremedia/cmmutabledatablockbuffer/copybytes(to:)"
---

# copyBytes(to:)

Copy all bytes to the destination buffer.

## Declaration

```swift
func copyBytes(to destination: UnsafeMutableRawBufferPointer)
```