#ifndef _NTPSAPI_H
//
// Threads
//
#if (PHNT_MODE != PHNT_MODE_KERNEL)
#if (PHNT_VERSION >= PHNT_WINDOWS_11)

/**
 * The NtAlertThreadByThreadIdEx routine sends an alert to the specified thread by its thread ID, with an optional lock.
 *
 * \param ThreadId The thread ID of the thread to be alerted.
 * \param Lock An optional pointer to an SRW lock to be used during the alert.
 * \return NTSTATUS Successful or errant status.
 * \remarks Extends the alert-by-ID operation with an optional lock argument passed into the wake implementation. It is
 * not a thread-handle access-mask API or a general-purpose APC dispatcher. WoW64 has both native forwarding
 * and an event-emulation path; lock handoff details are separate from the NULL-lock wake contract.
 */
_Kernel_entry_
NTSYSCALLAPI
NTSTATUS
NTAPI
NtAlertThreadByThreadIdEx(
    _In_ HANDLE ThreadId,
    _In_opt_ PRTL_SRWLOCK Lock
    );

#endif
#endif
#endif
View code on GitHub

#ifndef _NTZWAPI_H

_Kernel_entry_
NTSYSCALLAPI
NTSTATUS
NTAPI
ZwAlertThreadByThreadIdEx(
    _In_ HANDLE ThreadId,
    _In_opt_ PRTL_SRWLOCK Lock
    );

#endif
View code on GitHub