NtQueryTimer - NtDoc

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

NTSYSCALLAPI
NTSTATUS
NTAPI
NtQueryTimer(
    _In_ HANDLE TimerHandle,
    _In_ TIMER_INFORMATION_CLASS TimerInformationClass,
    _Out_writes_bytes_(TimerInformationLength) PVOID TimerInformation,
    _In_ ULONG TimerInformationLength,
    _Out_opt_ PULONG ReturnLength
    );

#endif
#endif

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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwQueryTimer(
    _In_ HANDLE TimerHandle,
    _In_ TIMER_INFORMATION_CLASS TimerInformationClass,
    _Out_writes_bytes_(TimerInformationLength) PVOID TimerInformation,
    _In_ ULONG TimerInformationLength,
    _Out_opt_ PULONG ReturnLength
    );

#endif

View code on GitHub

TimerHandle

HANDLE to Timer Object opened with TIMER_QUERY_STATE access.

TimerInformationClass

Information class. See TIMER_INFORMATION_CLASS for details.

TimerInformation

User's allocated buffer for result data.

TimerInformationLength

Length of TimerInformation buffer, in bytes.

ReturnLength

Optional pointer to value received used/required length of TimerInformation buffer.

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See also

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