---
title: AudioFileComponentWriteBytesProc
framework: audiotoolbox
role: symbol
role_heading: Type Alias
path: audiotoolbox/audiofilecomponentwritebytesproc
---

# AudioFileComponentWriteBytesProc

## Declaration

```swift
typealias AudioFileComponentWriteBytesProc = (UnsafeMutableRawPointer, DarwinBoolean, Int64, UnsafeMutablePointer<UInt32>, UnsafeRawPointer) -> OSStatus
```

## See Also

### Reading and Writing Data

- [AudioFileComponentReadBytes(_:_:_:_:_:)](audiotoolbox/audiofilecomponentreadbytes(_:_:_:_:_:).md)
- [AudioFileComponentReadPacketData(_:_:_:_:_:_:_:)](audiotoolbox/audiofilecomponentreadpacketdata(_:_:_:_:_:_:_:).md)
- [AudioFileComponentReadPackets(_:_:_:_:_:_:_:)](audiotoolbox/audiofilecomponentreadpackets(_:_:_:_:_:_:_:).md)
- [AudioFileComponentWriteBytes(_:_:_:_:_:)](audiotoolbox/audiofilecomponentwritebytes(_:_:_:_:_:).md)
- [AudioFileComponentWritePackets(_:_:_:_:_:_:_:)](audiotoolbox/audiofilecomponentwritepackets(_:_:_:_:_:_:_:).md)
- [AudioFileComponentReadBytesProc](audiotoolbox/audiofilecomponentreadbytesproc.md)
- [AudioFileComponentReadPacketDataProc](audiotoolbox/audiofilecomponentreadpacketdataproc.md)
- [AudioFileComponentReadPacketsProc](audiotoolbox/audiofilecomponentreadpacketsproc.md)
- [AudioFileComponentWritePacketsProc](audiotoolbox/audiofilecomponentwritepacketsproc.md)