pub unsafe extern "C" fn slQuerySupportedEngineInterfaces(
index: SLuint32,
pInterfaceId: *mut SLInterfaceID,
) -> SLresultpub unsafe extern "C" fn slQuerySupportedEngineInterfaces(
index: SLuint32,
pInterfaceId: *mut SLInterfaceID,
) -> SLresult