NtSetSystemInformation - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
#ifndef _NTEXAPI_H
#if (PHNT_MODE != PHNT_MODE_KERNEL)

/**
 * The NtSetSystemInformation routine sets information about the system.
 *
 * \param SystemInformationClass The type of information to be set.
 * \param SystemInformation A pointer to a buffer that receives the requested information.
 * \param SystemInformationLength The size of the buffer pointed to by SystemInformation.
 * \return NTSTATUS Successful or errant status.
 */
NTSYSCALLAPI
NTSTATUS
NTAPI
NtSetSystemInformation(
    _In_ SYSTEM_INFORMATION_CLASS SystemInformationClass,
    _In_reads_bytes_opt_(SystemInformationLength) PVOID SystemInformation,
    _In_ ULONG SystemInformationLength
    );

#endif
#endif

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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwSetSystemInformation(
    _In_ SYSTEM_INFORMATION_CLASS SystemInformationClass,
    _In_reads_bytes_opt_(SystemInformationLength) PVOID SystemInformation,
    _In_ ULONG SystemInformationLength
    );

#endif

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NTinternals.net (undocumented.ntinternals.net)

This function is documented in Windows SDK.

NtSetSystemInformation is used to set some inaccessible KernelMode variables. See also NtQuerySystemInformation.

SystemInformationClass

Information class described in SYSTEM_INFORMATION_CLASS.

SystemInformation

Pointer to data buffer to set.

SystemInformationLength

Length of information in SystemInformation buffer, in bytes.

Documented by

See also

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