AUDIO_ENDPOINT_VOLUME_APO_NOTIFICATION_DESCRIPTOR structure (audioengineextensionapo.h)

Specifies an endpoint volume APO notification.

Syntax

typedef struct AUDIO_ENDPOINT_VOLUME_APO_NOTIFICATION_DESCRIPTOR {
  IMMDevice *device;
} AUDIO_ENDPOINT_VOLUME_APO_NOTIFICATION_DESCRIPTOR;

Members

device

The IMMDevice representing the audio endpoint associated with the notification request.

Remarks

Return an APO_NOTIFICATION_DESCRIPTOR containing this structure from an implementation of IAudioProcessingObjectNotifications::GetApoNotificationRegistrationInfo to request endpoint volume change APO notifications.

For more information on the Windows 11 APIs for the Audio Processing Objects (APOs) that can ship with audio drivers, see Windows 11 APIs for Audio Processing Objects.

Requirements

Requirement	Value
Minimum supported client	Windows Build 22000
Header	audioengineextensionapo.h