Skip to main content

Apple Developer Docs

IOKit / IOAudioEngineState / kIOAudioEngineRunning

Contents

Declaration
Discussion

kIOAudioEngineRunning

Declaration

kIOAudioEngineRunning = 1

Discussion

The IOAudioEngine is currently running - it is transferring data to or from the device.

Open on developer.apple.com

IOKitEnumeration Case

Mac Catalyst 13.0+macOS 10.1+

Declaration
Discussion

Built on 2026-08-05 · Snapshot snapshot-20260805-beta.2 (macOS 27.0) · Commit 4bc0d8f · by @g-cqd · based on Apple Developer Documentation