# AudioHardwareServiceIsPropertySettable(_:_:_:) Queries a HAL audio object about whether a specified property is settable. ``` func AudioHardwareServiceIsPropertySettable(_ inObjectID: AudioObjectID, _ inAddress: UnsafePointer!, _ outIsSettable: UnsafeMutablePointer!) -> OSStatus ``` ## Parameters `inObjectID` The HAL audio object to query. `inAddress` The property that you are asking about. `outIsSettable` A Boolean value that indicates whether the property is settable (`true`) or not (`false`). ## Return Value A result code. ## See Also [`AudioHardwareServiceHasProperty`](/documentation/AudioToolbox/AudioHardwareServiceHasProperty(_:_:)) Queries a HAL audio object about whether or not it has a specified property. [`AudioHardwareServiceSetPropertyData`](/documentation/AudioToolbox/AudioHardwareServiceSetPropertyData(_:_:_:_:_:_:)) Asks a HAL audio object to change the value of a specified property. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)