The KSDRMAUDIOSTREAM_CONTENTID structure specifies the DRM content ID and DRM content rights for a KSPROPERTY_DRMAUDIOSTREAM_CONTENTID set-property request.
typedef struct
{
ULONG ContentId;
DRMRIGHTS DrmRights;
} KSDRMAUDIOSTREAM_CONTENTID, *PKSDRMAUDIOSTREAM_CONTENTID;
Declared in drmk.h. Include drmk.h.