NtSaveKeyEx - NtDoc

#ifndef _NTREGAPI_H

/**
 * Saves the specified registry key to a file with a specified format.
 * 
 * @param KeyHandle Handle to the registry key.
 * @param FileHandle Handle to the file where the key will be saved.
 * @param Format Format in which the key will be saved.
 * @return NTSTATUS Successful or errant status.
 */
NTSYSCALLAPI
NTSTATUS
NTAPI
NtSaveKeyEx(
    _In_ HANDLE KeyHandle,
    _In_ HANDLE FileHandle,
    _In_ ULONG Format
    );

#endif
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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwSaveKeyEx(
    _In_ HANDLE KeyHandle,
    _In_ HANDLE FileHandle,
    _In_ ULONG Format
    );

#endif
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