---
title: kAudioQueueProperty_IsRunning
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kaudioqueueproperty_isrunning
---

# kAudioQueueProperty_IsRunning

Value is a read-only UInt32 value indicating whether or not the audio queue is running. A nonzero value means running; 0 means stopped. A notification is sent when the associated audio queue starts or stops, which may occur sometime after the AudioQueueStart(_:_:) or AudioQueueStop(_:_:) function is called.

## Declaration

```swift
var kAudioQueueProperty_IsRunning: AudioQueuePropertyID { get }
```

## See Also

### Constants

- [kAudioQueueDeviceProperty_NumberChannels](audiotoolbox/kaudioqueuedeviceproperty_numberchannels.md)
- [kAudioQueueDeviceProperty_SampleRate](audiotoolbox/kaudioqueuedeviceproperty_samplerate.md)
- [kAudioQueueProperty_ChannelLayout](audiotoolbox/kaudioqueueproperty_channellayout.md)
- [kAudioQueueProperty_ConverterError](audiotoolbox/kaudioqueueproperty_convertererror.md)
- [kAudioQueueProperty_CurrentDevice](audiotoolbox/kaudioqueueproperty_currentdevice.md)
- [kAudioQueueProperty_CurrentLevelMeter](audiotoolbox/kaudioqueueproperty_currentlevelmeter.md)
- [kAudioQueueProperty_CurrentLevelMeterDB](audiotoolbox/kaudioqueueproperty_currentlevelmeterdb.md)
- [kAudioQueueProperty_DecodeBufferSizeFrames](audiotoolbox/kaudioqueueproperty_decodebuffersizeframes.md)
- [kAudioQueueProperty_EnableLevelMetering](audiotoolbox/kaudioqueueproperty_enablelevelmetering.md)
- [kAudioQueueProperty_EnableTimePitch](audiotoolbox/kaudioqueueproperty_enabletimepitch.md)
- [kAudioQueueProperty_MagicCookie](audiotoolbox/kaudioqueueproperty_magiccookie.md)
- [kAudioQueueProperty_MaximumOutputPacketSize](audiotoolbox/kaudioqueueproperty_maximumoutputpacketsize.md)
- [kAudioQueueProperty_StreamDescription](audiotoolbox/kaudioqueueproperty_streamdescription.md)
- [kAudioQueueProperty_TimePitchAlgorithm](audiotoolbox/kaudioqueueproperty_timepitchalgorithm.md)
- [kAudioQueueProperty_TimePitchBypass](audiotoolbox/kaudioqueueproperty_timepitchbypass.md)