---
title: completionRefCon
framework: coremidi
role: symbol
role_heading: Instance Property
path: coremidi/midisysexsendrequest/completionrefcon
---

# completionRefCon

Data to pass to the completion function.

## Declaration

```swift
var completionRefCon: UnsafeMutableRawPointer?
```

## See Also

### Configuring a request

- [destination](coremidi/midisysexsendrequest/destination.md)
- [data](coremidi/midisysexsendrequest/data.md)
- [bytesToSend](coremidi/midisysexsendrequest/bytestosend.md)
- [complete](coremidi/midisysexsendrequest/complete.md)
- [MIDICompletionProc](coremidi/midicompletionproc.md)
- [completionProc](coremidi/midisysexsendrequest/completionproc.md)
- [reserved](coremidi/midisysexsendrequest/reserved.md)