---
title: "AudioHardwareServiceGetPropertyDataSize(_:_:_:_:_:)"
framework: audiotoolbox
role: symbol
role_heading: Function
path: "audiotoolbox/audiohardwareservicegetpropertydatasize(_:_:_:_:_:)"
---

# AudioHardwareServiceGetPropertyDataSize(_:_:_:_:_:)

Gets the payload size for a given property.

## Declaration

```swift
func AudioHardwareServiceGetPropertyDataSize(_ inObjectID: AudioObjectID, _ inAddress: UnsafePointer<AudioObjectPropertyAddress>!, _ inQualifierDataSize: UInt32, _ inQualifierData: UnsafeRawPointer!, _ outDataSize: UnsafeMutablePointer<UInt32>!) -> OSStatus
```

## Parameters

- `inObjectID`: The HAL audio object to query.
- `inAddress`: The property whose payload size you want.
- `inQualifierDataSize`: A UInt32 value indicating the size of the buffer pointed to by the inQualifierData parameter. Not all properties require qualification; in such a case you set this parameter to 0.
- `inQualifierData`: A buffer of data to be used in determining the value of the property being queried. Not all properties require qualification; in such a case you set this parameter to NULL.
- `outDataSize`: A UInt32 value indicating the size, in bytes, of the payload for the given property.

## Return Value

Return Value A result code.

## See Also

### Related Documentation

- [AudioHardwareServiceGetPropertyData(_:_:_:_:_:_:)](audiotoolbox/audiohardwareservicegetpropertydata(_:_:_:_:_:_:).md)

### Functions

- [AudioFileReadPackets(_:_:_:_:_:_:_:)](audiotoolbox/audiofilereadpackets(_:_:_:_:_:_:_:).md)
- [AudioComponentGetIcon(_:_:)](audiotoolbox/audiocomponentgeticon(_:).md)
- [AudioComponentGetLastActiveTime(_:)](audiotoolbox/audiocomponentgetlastactivetime(_:).md)
- [AudioHardwareServiceAddPropertyListener(_:_:_:_:)](audiotoolbox/audiohardwareserviceaddpropertylistener(_:_:_:_:).md)
- [AudioHardwareServiceGetPropertyData(_:_:_:_:_:_:)](audiotoolbox/audiohardwareservicegetpropertydata(_:_:_:_:_:_:).md)
- [AudioHardwareServiceHasProperty(_:_:)](audiotoolbox/audiohardwareservicehasproperty(_:_:).md)
- [AudioHardwareServiceIsPropertySettable(_:_:_:)](audiotoolbox/audiohardwareserviceispropertysettable(_:_:_:).md)
- [AudioHardwareServiceRemovePropertyListener(_:_:_:_:)](audiotoolbox/audiohardwareserviceremovepropertylistener(_:_:_:_:).md)
- [AudioHardwareServiceSetPropertyData(_:_:_:_:_:_:)](audiotoolbox/audiohardwareservicesetpropertydata(_:_:_:_:_:_:).md)
- [AudioOutputUnitGetHostIcon(_:_:)](audiotoolbox/audiooutputunitgethosticon(_:_:).md)
- [AudioOutputUnitPublish(_:_:_:_:)](audiotoolbox/audiooutputunitpublish(_:_:_:_:).md)
- [AudioSessionAddPropertyListener(_:_:_:)](audiotoolbox/audiosessionaddpropertylistener(_:_:_:).md)
- [AudioSessionGetProperty(_:_:_:)](audiotoolbox/audiosessiongetproperty(_:_:_:).md)
- [AudioSessionGetPropertySize(_:_:)](audiotoolbox/audiosessiongetpropertysize(_:_:).md)
- [AudioSessionInitialize(_:_:_:_:)](audiotoolbox/audiosessioninitialize(_:_:_:_:).md)