---
title: messageSize
framework: coremidi
role: symbol
role_heading: Instance Property
path: coremidi/midinotification/messagesize
---

# messageSize

The size of the message including its ID.

## Declaration

```swift
var messageSize: UInt32
```

## See Also

### Inspecting the Notification

- [MIDINotificationMessageID](coremidi/midinotificationmessageid.md)
- [messageID](coremidi/midinotification/messageid.md)