2.2.1 RPC_HQUERY

This type is declared as follows:

 typedef [context_handle] HANDLE RPC_HQUERY;

RPC_HQUERY is a context handle used to maintain information about the performance counters that are being queried from the server by the client. The handle is returned by the server when the client initiates communication to query for performance counter data. The client then adds performance counters to a query list, maintained on the server, using the returned handle. When the client queries for the values of the performance counters, the server determines which performance counters to query based on the handle the client passes to the query method. The client closes the handle upon completion of the performance counter query, allowing the server to free the appropriate resources.