---
title: IOAudioEngineState
framework: IOKit
role: symbol
role_heading: Enumeration
platforms: [Mac Catalyst 13.0+, macOS 10.1+]
path: iokit/ioaudioenginestate
---

# IOAudioEngineState

Represents the state of an IOAudioEngine

## Declaration

```occ
typedef enum _IOAudioEngineState : unsigned int {
    ...
} IOAudioEngineState;
```

## Topics

### Constants

- [kIOAudioEngineRunning](iokit/ioaudioenginestate/kioaudioenginerunning.md)
- [kIOAudioEngineStopped](iokit/ioaudioenginestate/kioaudioenginestopped.md)
- [kIOAudioEnginePaused](iokit/ioaudioenginestate/kioaudioenginepaused.md)
- [kIOAudioEngineResumed](iokit/ioaudioenginestate/kioaudioengineresumed.md)