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# AVMIDIControlChangeEvent

An object that represents a MIDI control change message.

```
class AVMIDIControlChangeEvent
```

## Topics

### Creating a Control Change Event

[`init(channel:messageType:value:)`](/documentation/AVFAudio/AVMIDIControlChangeEvent/init(channel:messageType:value:))

Creates an event with a channel, control change type, and a value.

### Inspecting a Control Change Event

[`value`](/documentation/AVFAudio/AVMIDIControlChangeEvent/value)

The value of the control change event.

[`messageType`](/documentation/AVFAudio/AVMIDIControlChangeEvent/messageType-swift.property)

The type of control change message.

[`AVMIDIControlChangeEvent.MessageType`](/documentation/AVFAudio/AVMIDIControlChangeEvent/MessageType-swift.enum)

Constants that represents control change event types.


---

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