i'm not into the dll stuff, but i'm currently working on communication between Sketchup and Microsoft PowerPoint and Microsoft Project. Win32OLE.so can be used in that case
If you are using entities.add_face, the new face created is returned as the result. You can create the face with either lines (edges) or points. No big deal.
Yes .. You're right.
This morning I could get tested and worked properly in this way.
Thanks