NtQueryOpenSubKeysEx - NtDoc

#ifndef _NTREGAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
NtQueryOpenSubKeysEx(
    _In_ POBJECT_ATTRIBUTES TargetKey,
    _In_ ULONG BufferLength,
    _Out_writes_bytes_opt_(BufferLength) PVOID Buffer,
    _Out_ PULONG RequiredSize
    );

#endif
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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwQueryOpenSubKeysEx(
    _In_ POBJECT_ATTRIBUTES TargetKey,
    _In_ ULONG BufferLength,
    _Out_writes_bytes_opt_(BufferLength) PVOID Buffer,
    _Out_ PULONG RequiredSize
    );

#endif
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