// ksmedia.h

typedef struct {
  KSPROPERTY Property;
  GUID       EventId;
} KSSOUNDDETECTORPROPERTY, *PKSSOUNDDETECTORPROPERTY;
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Windows Driver Kit DDI reference (ns-ksmedia-kssounddetectorproperty)

KSSOUNDDETECTORPROPERTY structure

Description

The KSSOUNDDETECTORPROPERTY structure specifies a node and an Event ID. All sound detector property calls into the driver are made using the KSSOUNDDETECTORPROPERTY structure.

Members

`Property`

Specifies the property to get or set. This member is a structure of type KSPROPERTY.

`EventId`

Specifies the event ID GUID.

Remarks

The EventId is used to identify the different voice assistant/agents such as Cortana. By including the event id with all of the KSPROPERTY_SOUNDDETECTOR_* properties, each agent can be controlled separately, for example like arming "Cortana" without arming "Contoso".

KSSOUNDDETECTORPROPERTY - NtDoc