User Interaction in HP PE/SolidDesigner
The HP PE/SolidDesigner user interface is modeled after the successful, easy-to-use, easy-to-learn interface of earlier HP CAD products. All commands are coded as Common Lisp action routines. A user interface builder helps command programmers by hiding details of the X Window System and the OSF/Motif(TM) graphical user interface. Prototyping was done using a specially developed Lisp-based interface to OSF/Motif called HCLX.
by Berthold Hug, Gerhard J.Walz, and Markus Kuhl
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