---
title: "writeOutputNoCopy(length:)"
framework: network
role: symbol
role_heading: Instance Method
path: "network/nwprotocolframer/instance/writeoutputnocopy(length:)"
---

# writeOutputNoCopy(length:)

Sends a specific number of bytes from a message while inside your output handler.

## Declaration

```swift
final func writeOutputNoCopy(length: Int) throws
```

## See Also

### Writing Output

- [parseOutput(minimumIncompleteLength:maximumLength:parse:)](network/nwprotocolframer/instance/parseoutput(minimumincompletelength:maximumlength:parse:).md)
- [writeOutput(data:)](network/nwprotocolframer/instance/writeoutput(data:)-ydvk.md)
- [passThroughOutput()](network/nwprotocolframer/instance/passthroughoutput().md)