OpenStaad - How to get list of members connected at Node?

When I try to use the GetBeamsConnectedAtNode function, I either get FALSE or an error. Assuming there are 3 connected member:

Dim lngConnectedMembers(0 To 2) As Long

Dim objOpenStaad As Object

Set objOpenStaad = GetObject(, "StaadPro.OpenSTAAD")

RetVal = objOpenStaad.Geometry.GetBeamsConnectedAtNode(5,lngConnectedMembers)