KSPROPSETID_AudioGfx
The KSPROPSETID_AudioGfx property set is used to inform GFX filters of the device IDs of the audio devices that are used for rendering and capture. A device ID is specified in the form of a null-terminated Unicode string (see Device Identification Strings).
The property items in this set are specified by KSPROPERTY_AUDIOGFX enumeration values.
The following properties are part of the KSPROPSETID_AudioGfx property set: