---
title: mNotificationID
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 18.4+, macOS 10.7+]
path: iokit/iovideodevicenotification/1503872-mnotificationid
---

# mNotificationID

A UInt32 that identifies the kind of the notification.

## Declaration

```occ
UInt32 mNotificationID;
```