wxWindows
Hardy information, documentation, distributions, the SDK and examples
are available here.
Hardy uses the wxWindows
cross-platform GUI building toolkit. A project originated by Julian
Smart at AIAI.
WxCLIPS
was started in 1992 by Julian Smart at the Artificial
Intelligence Applications Institute, part of the University of
Edinburgh. wxCLIPS is a spin-off from two projects, wxWidgets and
Hardy. wxWidgets provides the underlying portable GUI layer, and the
meta-CASE tool Hardy required an embedded language capable of being
used to program GUIs: hence wxCLIPS.
Julian is now a freelance consultant, but continues to maintain
wxCLIPS as a background task.