---
title: hostMIDIProtocol
framework: audiotoolbox
role: symbol
role_heading: Instance Property
path: audiotoolbox/auaudiounit/hostmidiprotocol
---

# hostMIDIProtocol

## Declaration

```swift
var hostMIDIProtocol: MIDIProtocolID { get set }
```

## See Also

### Instance properties

- [audioUnitMIDIProtocol](audiotoolbox/auaudiounit/audiounitmidiprotocol.md)
- [midiOutputEventListBlock](audiotoolbox/auaudiounit/midioutputeventlistblock.md)
- [migrateFromPlugin](audiotoolbox/auaudiounit/migratefromplugin.md)
- [scheduleMIDIEventListBlock](audiotoolbox/auaudiounit/schedulemidieventlistblock.md)