Function winapi::um::perflib::PerfEnumerateCounterSetInstances

pub unsafe extern "system" fn PerfEnumerateCounterSetInstances(
    szMachine: LPCWSTR, 
    pCounterSetIds: LPCGUID, 
    pInstances: PPERF_INSTANCE_HEADER, 
    cbInstances: DWORD, 
    pcbInstancesActual: LPDWORD
) -> ULONG