static internal extern int TraceQueryInformation( [In] UInt64 traceHandle, [In] TRACE_INFO_CLASS InformationClass, [Out] void *TraceInformation, [In] int InformationLength, [In][Out] ref int ReturnLength);
static internal extern int TraceSetInformation( [In] UInt64 traceHandle, [In] TRACE_INFO_CLASS InformationClass, [In] void *TraceInformation, [In] int InformationLength);