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AudioHardwarePropertyListenerProc

Declaration

typealias AudioHardwarePropertyListenerProc = (AudioHardwarePropertyID, UnsafeMutableRawPointer?) -> OSStatus

Parameters

  • inPropertyID:

    The AudioHardwarePropertyID of the property that changed.

  • inClientData:

    A pointer to client data established when the listener proc was registered with the AudioSystemObject.

Return Value

The return value is currently unused and should always be 0.

Discussion

Clients register an AudioHardwarePropertyListenerProc with the AudioSystemObject in order to receive notifications when the properties of the object change.

Note that the same functionality is provided by AudioObjectPropertyListenerProc.

See Also

Data Types