---
title: MIDIDriverKit Data Types
framework: MIDIDriverKit
role: collectionGroup
role_heading: API Collection
path: mididriverkit/mididriverkit-data-types
---

# MIDIDriverKit Data Types

## Topics

### Data Types

- [IOUserMIDIClassID](mididriverkit/mididriverkit/iousermidiclassid.md)
- [IOUserMIDIObjectID](mididriverkit/mididriverkit/iousermidiobjectid.md)
- [IOUserMIDIProperty](mididriverkit/mididriverkit/iousermidiproperty.md)
- [IOUserMIDIPropertySelector](mididriverkit/mididriverkit/iousermidipropertyselector.md)
- [IOUserMIDIPropertyType](mididriverkit/mididriverkit/iousermidipropertytype.md)
- [IOUserMIDIProtocolID](mididriverkit/mididriverkit/iousermidiprotocolid.md)
- [IOUserMIDIUMPWord](mididriverkit/mididriverkit/iousermidiumpword.md)
- [MIDIIOBlock](mididriverkit/mididriverkit/midiioblock.md)

## See Also

### Reference

- [MIDIDriverKit Constants](mididriverkit/mididriverkit-constants.md)