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# AVMIDIPolyPressureEvent

An object that represents a MIDI poly or key pressure event.

```
class AVMIDIPolyPressureEvent
```

## Topics

### Creating a Poly Pressure Event

[`init(channel:key:pressure:)`](/documentation/AVFAudio/AVMIDIPolyPressureEvent/init(channel:key:pressure:))

Creates an event with a channel, MIDI key number, and a key pressure value.

### Configuring a Poly Pressure Event

[`key`](/documentation/AVFAudio/AVMIDIPolyPressureEvent/key)

The MIDI key number.

[`pressure`](/documentation/AVFAudio/AVMIDIPolyPressureEvent/pressure)

The poly pressure value for the requested key.


---

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