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

# messageSize

The message size.

## Declaration

```swift
var messageSize: UInt32
```

## See Also

### Inspecting the Notification

- [messageID](coremidi/midiobjectpropertychangenotification/messageid.md)
- [object](coremidi/midiobjectpropertychangenotification/object.md)
- [objectType](coremidi/midiobjectpropertychangenotification/objecttype.md)
- [propertyName](coremidi/midiobjectpropertychangenotification/propertyname.md)