NtAddAtomEx - NtDoc

#ifndef _NTEXAPI_H
#if (PHNT_MODE != PHNT_MODE_KERNEL)
#if (PHNT_VERSION >= PHNT_WIN8)

// rev
NTSYSCALLAPI
NTSTATUS
NTAPI
NtAddAtomEx(
    _In_reads_bytes_opt_(Length) PCWSTR AtomName,
    _In_ ULONG Length,
    _Out_opt_ PRTL_ATOM Atom,
    _In_ ULONG Flags
    );

#endif
#endif
#endif
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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwAddAtomEx(
    _In_reads_bytes_opt_(Length) PCWSTR AtomName,
    _In_ ULONG Length,
    _Out_opt_ PRTL_ATOM Atom,
    _In_ ULONG Flags
    );

#endif
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