Function NtSaveMergedKeys 

pub unsafe extern "C" fn NtSaveMergedKeys(
    HighPrecedenceKeyHandle: HANDLE,
    LowPrecedenceKeyHandle: HANDLE,
    FileHandle: HANDLE,
) -> NTSTATUS

Merges two registry keys and saves the result to a file.

Arguments

• HighPrecedenceKeyHandle - Handle to the high precedence registry key.
• LowPrecedenceKeyHandle - Handle to the low precedence registry key.
• FileHandle - Handle to the file where the merged key will be saved.

Returns

NTSTATUS Successful or errant status.