call by reference from automation objects

[yves]

Hello,
I have an automation object generated from VC6:

BEGIN_DISPATCH_MAP(CSNMPManager, CCmdTarget)
//{{AFX_DISPATCH_MAP(CSNMPManager)
  DISP_FUNCTION(CSNMPManager, "Get", Get, VT_I4, VTS_I4 VTS_VARIANT
VTS_VARIANT)
//}}AFX_DISPATCH_MAP
END_DISPATCH_MAP()

long CSNMPManager::Get(long RID, const VARIANT FAR& OIDs,  const
VARIANT FAR& Result)
{
  ...
  PerformGet(RID, vaSNMPObject, vaValues, lErrorCode);
  // Copy the result 
  vaDetachedValues = vaValues.Detach();
  
  VariantClear(Result.pvarVal);
  Result.pvarVal->vt = vaDetachedValues.vt;
  Result.pvarVal->parray = vaDetachedValues.parray;

  lRetVal = lErrorCode;
  return lRetVal;
}

My Python script is loaded as code file from my C++ application and
the appropriate IDispatch pointers are supplied to the script to be
able to call the object.

When I call the method from Python the result lst stays empty:

lst=()
lstMIBObjects=["1.3.6.1.2.1.2.2.1.10.1",]
lRetval=Snmp.Manager.Get(557848457, lstMIBObjects, lst)

lst is an empty tuple although the safearray contains actual values.

As I understand it Python does not support call by reference and
parameters that are changed within a method should be returned as
multiple return values.
Does this also applies to methods called from automation objects and
do I have to encapsulate multiple return values in a safearray?

kind regards
yves