NtAlertThreadByThreadId - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers

#ifndef _NTPSAPI_H
// Threads
#if (PHNT_MODE != PHNT_MODE_KERNEL)
#if (PHNT_VERSION >= PHNT_WIN8)

// rev
/**
 * Sends an alert to the specified thread.
 *
 * @param ThreadId The thread ID of the thread to be alerted.
 * @return NTSTATUS Successful or errant status.
 */
NTSYSCALLAPI
NTSTATUS
NTAPI
NtAlertThreadByThreadId(
    _In_ HANDLE ThreadId
    );

#endif
#endif
#endif
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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwAlertThreadByThreadId(
    _In_ HANDLE ThreadId
    );

#endif
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Wakes another thread that previously called NtWaitForAlertByThreadId.

Parameters

ThreadId - the ID of the thread to wake. The thread must belong to the same process as the caller.

Remarks

Despite the name, NtAlertThread and alertable waits via NtDelayExecution are unrelated to this functionality.

Required OS version

This function was introduced in Windows 8.

See also

NtWaitForAlertByThreadId

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