question on CBEnumInstances

Hi All,

I have a question on CBEnumInstances.
inline static CMPIEnumeration *CBEnumInstances(
    const CMPIBroker * mb,
    const CMPIContext * ctx,
    const CMPIObjectPath * op,
    const char ***properties*,
    CMPIStatus * rc)


I am trying to enumerate instances of a class.

I would like to filter my results based on certain *property value,* how can
I do that?

Lets for example I would like to filter results from CBEnumInstances to just
show the instances of class which has property has GatheringType = 3

I am not sure if can specify value for const char ***properties*.

thanks,
Hemanth