NtPulseEvent - 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 NtPulseEvent routine sets an event object to the signaled state and then resets it to the not-signaled state after releasing the appropriate number of waiting threads.
*
* @param EventHandle A handle to the event object.
* @param PreviousState A pointer to a variable that receives the previous state of the event object.
* @return NTSTATUS Successful or errant status.
* @see https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-pulseevent
*/
NTSYSCALLAPI
NTSTATUS
NTAPI
NtPulseEvent(
_In_ HANDLE EventHandle,
_Out_opt_ PLONG PreviousState
);
View code on GitHub#ifndef _NTZWAPI_H
NTSYSCALLAPI
NTSTATUS
NTAPI
ZwPulseEvent(
_In_ HANDLE EventHandle,
_Out_opt_ PLONG PreviousState
);
View code on GitHubHANDLE to Event Object opened with EVENT_MODIFY_STATE access.
State of event before call.
Function sets event to signaled state, releases all (or one - depending on EVENT_TYPE) waiting threads, and resets event to non-signaled state. If they're no waiting threads, NtPulseEvent just clear event state.