SysCtxInternalEnumSubkeyCallback

__int64 __fastcall SysCtxInternalEnumSubkeyCallback(__int64 a1, __int64 a2, __int64 a3){
  return(*(__int64(__fastcall **)(_QWORD, __int64, __int64, _QWORD))(a3 + 8))(
           *(_QWORD *)a3,
           a1,
           a2,
           *(_QWORD *)(a3 + 16));
}

Referenced by:

RegRtlEnumKeyWithCallback