Core Audio Structures

This section describes the structures that are used by the Core Audio APIs in Windows Vista and later.

Structure Description
AUDIO_VOLUME_NOTIFICATION_DATA Describes a change in the volume level or muting state of an audio endpoint device.
DIRECTX_AUDIO_ACTIVATION_PARAMS Specifies the initialization parameters for a DirectSound stream.
KSJACK_DESCRIPTION Retrieved through IKsJackDescription::GetJackDescription; describes an audio jack.
KSJACK_DESCRIPTION2
Retrieved through IKsJackDescription2::GetJackDescription2; describes an audio jack.
KSJACK_SINK_INFORMATION
Retrieved through IKsJackSinkInformation::GetJackSinkInformation; describes an audio jack sink.
LUID
Stores the video port identifier.

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