#ifndef _NTREGAPI_H

/**
 * Sets the value of a registry key.
 * 
 * @param[in] KeyHandle A handle to the key to be modified.
 * @param[in] ValueName A pointer to a UNICODE_STRING structure that specifies the name of the value to be set.
 * @param[in, optional] TitleIndex Reserved.
 * @param[in] Type The type of the value.
 * @param[in] Data A pointer to a buffer that contains the value data.
 * @param[in] DataSize The size of the buffer.
 * @return NTSTATUS Successful or errant status.
 */
NTSYSCALLAPI
NTSTATUS
NTAPI
NtSetValueKey(
    _In_ HANDLE KeyHandle,
    _In_ PUNICODE_STRING ValueName,
    _In_opt_ ULONG TitleIndex,
    _In_ ULONG Type,
    _In_reads_bytes_opt_(DataSize) PVOID Data,
    _In_ ULONG DataSize
    );

#endif
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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwSetValueKey(
    _In_ HANDLE KeyHandle,
    _In_ PUNICODE_STRING ValueName,
    _In_opt_ ULONG TitleIndex,
    _In_ ULONG Type,
    _In_reads_bytes_opt_(DataSize) PVOID Data,
    _In_ ULONG DataSize
    );

#endif
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