@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: Tells NtQuerySystemInformation and NtSetSystemInformation what you would like to read/change. !!!!C# Signature: public enum SYSTEM_INFORMATION_CLASS { SystemBasicInformation = 0x0000, SystemProcessorInformation = 0x0001, SystemPerformanceInformation = 0x0002, SystemTimeOfDayInformation = 0x0003, SystemPathInformation = 0x0004, SystemProcessInformation = 0x0005, SystemCallCountInformation = 0x0006, SystemDeviceInformation = 0x0007, SystemProcessorPerformanceInformation = 0x0008, SystemFlagsInformation = 0x0009, SystemCallTimeInformation = 0x000A, SystemModuleInformation = 0x000B, SystemLocksInformation = 0x000C, SystemStackTraceInformation = 0x000D, SystemPagedPoolInformation = 0x000E, SystemNonPagedPoolInformation = 0x000F, SystemHandleInformation = 0x0010, SystemObjectInformation = 0x0011, SystemPageFileInformation = 0x0012, SystemVdmInstemulInformation = 0x0013, SystemVdmBopInformation = 0x0014, SystemFileCacheInformation = 0x0015, SystemPoolTagInformation = 0x0016, SystemInterruptInformation = 0x0017, SystemDpcBehaviorInformation = 0x0018, SystemFullMemoryInformation = 0x0019, SystemLoadGdiDriverInformation = 0x001A, SystemUnloadGdiDriverInformation = 0x001B, SystemTimeAdjustmentInformation = 0x001C, SystemSummaryMemoryInformation = 0x001D, SystemMirrorMemoryInformation = 0x001E, SystemPerformanceTraceInformation = 0x001F, SystemCrashDumpInformation = 0x0020, SystemExceptionInformation = 0x0021, SystemCrashDumpStateInformation = 0x0022, SystemKernelDebuggerInformation = 0x0023, SystemContextSwitchInformation = 0x0024, SystemRegistryQuotaInformation = 0x0025, SystemExtendServiceTableInformation = 0x0026, SystemPrioritySeperation = 0x0027, SystemVerifierAddDriverInformation = 0x0028, SystemVerifierRemoveDriverInformation = 0x0029, SystemProcessorIdleInformation = 0x002A, SystemLegacyDriverInformation = 0x002B, SystemCurrentTimeZoneInformation = 0x002C, SystemLookasideInformation = 0x002D, SystemTimeSlipNotification = 0x002E, SystemSessionCreate = 0x002F, SystemSessionDetach = 0x0030, SystemSessionInformation = 0x0031, SystemRangeStartInformation = 0x0032, SystemVerifierInformation = 0x0033, SystemVerifierThunkExtend = 0x0034, SystemSessionProcessInformation = 0x0035, SystemLoadGdiDriverInSystemSpace = 0x0036, SystemNumaProcessorMap = 0x0037, SystemPrefetcherInformation = 0x0038, SystemExtendedProcessInformation = 0x0039, SystemRecommendedSharedDataAlignment = 0x003A, SystemComPlusPackage = 0x003B, SystemNumaAvailableMemory = 0x003C, SystemProcessorPowerInformation = 0x003D, SystemEmulationBasicInformation = 0x003E, SystemEmulationProcessorInformation = 0x003F, SystemExtendedHandleInformation = 0x0040, SystemLostDelayedWriteInformation = 0x0041, SystemBigPoolInformation = 0x0042, SystemSessionPoolTagInformation = 0x0043, SystemSessionMappedViewInformation = 0x0044, SystemHotpatchInformation = 0x0045, SystemObjectSecurityMode = 0x0046, SystemWatchdogTimerHandler = 0x0047, SystemWatchdogTimerInformation = 0x0048, SystemLogicalProcessorInformation = 0x0049, SystemWow64SharedInformationObsolete = 0x004A, SystemRegisterFirmwareTableInformationHandler = 0x004B, SystemFirmwareTableInformation = 0x004C, SystemModuleInformationEx = 0x004D, SystemVerifierTriageInformation = 0x004E, SystemSuperfetchInformation = 0x004F, SystemMemoryListInformation = 0x0050, // SYSTEM_MEMORY_LIST_INFORMATION SystemFileCacheInformationEx = 0x0051, SystemThreadPriorityClientIdInformation = 0x0052, SystemProcessorIdleCycleTimeInformation = 0x0053, SystemVerifierCancellationInformation = 0x0054, SystemProcessorPowerInformationEx = 0x0055, SystemRefTraceInformation = 0x0056, SystemSpecialPoolInformation = 0x0057, SystemProcessIdInformation = 0x0058, SystemErrorPortInformation = 0x0059, SystemBootEnvironmentInformation = 0x005A, SystemHypervisorInformation = 0x005B, SystemVerifierInformationEx = 0x005C, SystemTimeZoneInformation = 0x005D, SystemImageFileExecutionOptionsInformation = 0x005E, SystemCoverageInformation = 0x005F, SystemPrefetchPatchInformation = 0x0060, SystemVerifierFaultsInformation = 0x0061, SystemSystemPartitionInformation = 0x0062, SystemSystemDiskInformation = 0x0063, SystemProcessorPerformanceDistribution = 0x0064, SystemNumaProximityNodeInformation = 0x0065, SystemDynamicTimeZoneInformation = 0x0066, SystemCodeIntegrityInformation = 0x0067, SystemProcessorMicrocodeUpdateInformation = 0x0068, SystemProcessorBrandString = 0x0069, SystemVirtualAddressInformation = 0x006A, SystemLogicalProcessorAndGroupInformation = 0x006B, SystemProcessorCycleTimeInformation = 0x006C, SystemStoreInformation = 0x006D, SystemRegistryAppendString = 0x006E, SystemAitSamplingValue = 0x006F, SystemVhdBootInformation = 0x0070, SystemCpuQuotaInformation = 0x0071, SystemNativeBasicInformation = 0x0072, SystemErrorPortTimeouts = 0x0073, SystemLowPriorityIoInformation = 0x0074, SystemBootEntropyInformation = 0x0075, SystemVerifierCountersInformation = 0x0076, SystemPagedPoolInformationEx = 0x0077, SystemSystemPtesInformationEx = 0x0078, SystemNodeDistanceInformation = 0x0079, SystemAcpiAuditInformation = 0x007A, SystemBasicPerformanceInformation = 0x007B, SystemQueryPerformanceCounterInformation = 0x007C, SystemSessionBigPoolInformation = 0x007D, SystemBootGraphicsInformation = 0x007E, SystemScrubPhysicalMemoryInformation = 0x007F, SystemBadPageInformation = 0x0080, SystemProcessorProfileControlArea = 0x0081, SystemCombinePhysicalMemoryInformation = 0x0082, SystemEntropyInterruptTimingInformation = 0x0083, SystemConsoleInformation = 0x0084, SystemPlatformBinaryInformation = 0x0085, SystemThrottleNotificationInformation = 0x0086, SystemHypervisorProcessorCountInformation = 0x0087, SystemDeviceDataInformation = 0x0088, SystemDeviceDataEnumerationInformation = 0x0089, SystemMemoryTopologyInformation = 0x008A, SystemMemoryChannelInformation = 0x008B, SystemBootLogoInformation = 0x008C, SystemProcessorPerformanceInformationEx = 0x008D, SystemSpare0 = 0x008E, SystemSecureBootPolicyInformation = 0x008F, SystemPageFileInformationEx = 0x0090, SystemSecureBootInformation = 0x0091, SystemEntropyInterruptTimingRawInformation = 0x0092, SystemPortableWorkspaceEfiLauncherInformation = 0x0093, SystemFullProcessInformation = 0x0094, MaxSystemInfoClass = 0x0095 } !!!!VB Signature: Declare Function SYSTEM_INFORMATION_CLASS Lib "ntdll.dll" (TODO) As TODO !!!!User-Defined Types: None. !!!!Notes: None. Documentation: SYSTEM_INFORMATION_CLASS@msdn on MSDN
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