Subject:    -6- Is Inventor a user interface toolkit?
Date: 30 Apr 1994 15:45:00 CDT

  Yes and no. Inventor contains mostly 3D objects. There is little in
  the way of conventional user interface objects such as buttons,
  dialogs, and menus.  However, Inventor includes a full-fledged event
  model, a framework designed for 2D or 3D user interaction, and some
  manipulator objects for 3D user interface building. Note that the
  Inventor Xt Component and Utility Library includes some traditional
  2D user interface widgets.