Reg : CAA CreateExtractSolide

[zynk]

Hello All,
I'm trying to use CreateExtractSolide. For this input argument is CATISpecObject. But, I have CATFace, which I need to extract.
spExtractspec is returning as NULL.
Can anyone help me out in this regards please. Thank you in advance.

CATFace_var pFace(FacesList);

const CATIGSMExtractSolidePropag Proptype = ExtractSolide_TangentPropag;
CATISpecObject_var spExtractspec(pFace);
CATISpecObject_var spExtract = spGsmFact->CreateExtractSolide(spExtractspec, Proptype);

CATIGSMProceduralView_var curobj = spExtract;
if (NULL_var != curobj) {
rc = curobj->InsertInProceduralView();
spExtract->Update();

Regards
zynk