I didn't know whether SpaceClaim can run without UI. Did anybody who try this by using SpaceClaim API?

I used SpaceClaim for CAD modeling and created some dimention groups (as parameters) for the model, then I used C# to create a dialog, there were some edit boxes in the dialog which would deliver the values to those dimentions. If I loaded this dialog as add-in for SpaceClaim, it worked successfully. But when I tryed to let this dialog work independently, I didn't find the way to call SpaceClaim in backgroud.

Anbody who can help this?