NtReleaseKeyedEvent - 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
NtReleaseKeyedEvent(
    _In_opt_ HANDLE KeyedEventHandle,
    _In_ PVOID KeyValue,
    _In_ BOOLEAN Alertable,
    _In_opt_ PLARGE_INTEGER Timeout
    );

#endif
#endif

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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwReleaseKeyedEvent(
    _In_opt_ HANDLE KeyedEventHandle,
    _In_ PVOID KeyValue,
    _In_ BOOLEAN Alertable,
    _In_opt_ PLARGE_INTEGER Timeout
    );

#endif

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This function is used for signal KeyedEvent object with value specified as Key parameter. If there are no other thread (or threads) waiting for the same KeyedEvent with the same Key value, waiting is performed up to NtWaitForKeyedEvent called by any other thread.

KeyedEventHandle

HANDLE to KeyedEvent object.

Key

Value used as KEY. Note that this value has to have lowest bit cleared (must divide by two).

Alertable

If set, waiting can be broken by alerting thread.

Timeout

Optional pointer for timeout value.

Documented by

See also

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