2_NtWow64CallFunction64.h

typedef enum _WOW64_FUNCTION {
    Wow64Function64Nop,
    Wow64FunctionQueryProcessDebugInfo,
    Wow64FunctionTurboThunkControl,
    Wow64FunctionCfgDispatchControl,
    Wow64FunctionOptimizeChpeImportThunks,
} WOW64_FUNCTION;

NTSYSCALLAPI
NTSTATUS
NTAPI
NtWow64CallFunction64(
    _In_ WOW64_FUNCTION Wow64Function,
    _In_ ULONG Flags,
    _In_ ULONG InputBufferLength,
    _In_reads_bytes_opt_(InputBufferLength) PVOID InputBuffer,
    _In_ ULONG OutputBufferLength,
    _Out_writes_bytes_opt_(OutputBufferLength) PVOID OutputBuffer,
    _Out_opt_ PULONG ReturnLength
    );