---
title: IOPowerStateChangeNotification
framework: IOKit
role: symbol
role_heading: Structure
platforms: [Mac Catalyst 13.0+, macOS 10.6+]
path: iokit/iopowerstatechangenotification
---

# IOPowerStateChangeNotification

## Declaration

```occ
typedef struct IOPowerStateChangeNotification {
    ...
} IOPowerStateChangeNotification;
```

## Topics

### Instance Properties

- [powerRef](iokit/iopowerstatechangenotification/1499594-powerref.md)
- [returnValue](iokit/iopowerstatechangenotification/1499911-returnvalue.md)
- [stateFlags](iokit/iopowerstatechangenotification/1499589-stateflags.md)
- [stateNumber](iokit/iopowerstatechangenotification/1499930-statenumber.md)