enum SYSTEM_INFORMATION_CLASS

enum SYSTEM_INFORMATION_CLASS : int
{
            SystemBasicInformation,
            SystemProcessorInformation,
            SystemPerformanceInformation,
            SystemTimeOfDayInformation,
            SystemPathInformation,
            SystemProcessInformation,
            SystemCallCountInformation,
            SystemDeviceInformation,
            SystemProcessorPerformanceInformation,
            SystemFlagsInformation,
            SystemCallTimeInformation,
            SystemModuleInformation,
            SystemLocksInformation,
            SystemStackTraceInformation,
            SystemPagedPoolInformation,
            SystemNonPagedPoolInformation,
            SystemHandleInformation,
            SystemObjectInformation,
            SystemPageFileInformation,
            SystemVdmInstemulInformation,
            SystemVdmBopInformation,
            SystemFileCacheInformation,
            SystemPoolTagInformation,
            SystemInterruptInformation,
            SystemDpcBehaviorInformation,
            SystemFullMemoryInformation,
            SystemLoadGdiDriverInformation,
            SystemUnloadGdiDriverInformation,
            SystemTimeAdjustmentInformation,
            SystemSummaryMemoryInformation,
            SystemMirrorMemoryInformation,
            SystemPerformanceTraceInformation,
            SystemCrashDumpInformation,
            SystemExceptionInformation,
            SystemCrashDumpStateInformation,
            SystemKernelDebuggerInformation,
            SystemContextSwitchInformation,
            SystemRegistryQuotaInformation,
            SystemExtendServiceTableInformation, // used to be SystemLoadAndCallImage
            SystemPrioritySeparation,
            SystemVerifierAddDriverInformation,
            SystemVerifierRemoveDriverInformation,
            SystemProcessorIdleInformation,
            SystemLegacyDriverInformation,
            SystemCurrentTimeZoneInformation,
            SystemLookasideInformation,
            SystemTimeSlipNotification,
            SystemSessionCreate,
            SystemSessionDetach,
            SystemSessionInformation,
            SystemRangeStartInformation,
            SystemVerifierInformation,
            SystemVerifierThunkExtend,
            SystemSessionProcessInformation,
            SystemLoadGdiDriverInSystemSpace,
            SystemNumaProcessorMap,
            SystemPrefetcherInformation,
            SystemExtendedProcessInformation,
            SystemRecommendedSharedDataAlignment,
            SystemComPlusPackage,
            SystemNumaAvailableMemory, // 60
            SystemProcessorPowerInformation,
            SystemEmulationBasicInformation,
            SystemEmulationProcessorInformation,
            SystemExtendedHandleInformation,
            SystemLostDelayedWriteInformation,
            SystemBigPoolInformation,
            SystemSessionPoolTagInformation,
            SystemSessionMappedViewInformation,
            SystemHotpatchInformation,
            SystemObjectSecurityMode, // 70
            SystemWatchdogTimerHandler, // doesn't seem to be implemented
            SystemWatchdogTimerInformation,
            SystemLogicalProcessorInformation,
            SystemWow64SharedInformation,
            SystemRegisterFirmwareTableInformationHandler,
            SystemFirmwareTableInformation,
            SystemModuleInformationEx,
            SystemVerifierTriageInformation,
            SystemSuperfetchInformation,
            SystemMemoryListInformation, // 80
            SystemFileCacheInformationEx,
            SystemNotImplemented19,
            SystemProcessorDebugInformation,
            SystemVerifierInformation2,
            SystemNotImplemented20,
            SystemRefTraceInformation,
            SystemSpecialPoolTag, // MmSpecialPoolTag, then MmSpecialPoolCatchOverruns != 0
            SystemProcessImageName,
            SystemNotImplemented21,
            SystemBootEnvironmentInformation, // 90
            SystemEnlightenmentInformation,
            SystemVerifierInformationEx,
            SystemNotImplemented22,
            SystemNotImplemented23,
            SystemCovInformation,
            SystemNotImplemented24,
            SystemNotImplemented25,
            SystemPartitionInformation,
            SystemSystemDiskInformation, // this and SystemPartitionInformation both call IoQuerySystemDeviceName
            SystemPerformanceDistributionInformation, // 100
            SystemNumaProximityNodeInformation,
            SystemTimeZoneInformation2,
            SystemCodeIntegrityInformation,
            SystemNotImplemented26,
            SystemUnknownInformation, // No symbols for this case, very strange...
            SystemVaInformation // 106, calls MmQuerySystemVaInformation

}