NtOpenKeyEx - NtDoc

#ifndef _NTREGAPI_H
#if (PHNT_VERSION >= PHNT_WIN7)

NTSYSCALLAPI
NTSTATUS
NTAPI
NtOpenKeyEx(
    _Out_ PHANDLE KeyHandle,
    _In_ ACCESS_MASK DesiredAccess,
    _In_ POBJECT_ATTRIBUTES ObjectAttributes,
    _In_ ULONG OpenOptions
    );

#endif
#endif
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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwOpenKeyEx(
    _Out_ PHANDLE KeyHandle,
    _In_ ACCESS_MASK DesiredAccess,
    _In_ POBJECT_ATTRIBUTES ObjectAttributes,
    _In_ ULONG OpenOptions
    );

#endif
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