RtlQueryRegistryValueWithFallback - NtDoc

#ifndef _NTRTL_H
#if (PHNT_VERSION >= PHNT_REDSTONE4)

NTSYSAPI
NTSTATUS
NTAPI
RtlQueryRegistryValueWithFallback(
    _In_opt_ HANDLE PrimaryHandle,
    _In_opt_ HANDLE FallbackHandle,
    _In_ PUNICODE_STRING ValueName,
    _In_ ULONG ValueLength,
    _Out_opt_ PULONG ValueType,
    _Out_writes_bytes_to_(ValueLength, *ResultLength) PVOID ValueData,
    _Out_range_(<= , ValueLength) PULONG ResultLength
    );

#endif
#endif
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