CLX is the de facto standard low-level interface between Common Lisp and
X11, providing pretty much the same interface as xlib, but with a Lispy
syntax. CLX is included in the X11 distributions from MIT, and is
pre-loaded in most of the commercial and public-domain Common Lisp systems.
(I don't know specifically about the various versions of KCL.)
Things are a bit more complex at the next level up. There are several
contending packages at the "toolkit" or "interface builder" level. The
proprietary CLIM package is the one that has been embraced by most of the
large Lisp vendors, but it is not available for KCL.
-- Scott
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Scott E. Fahlman
School of Computer Science
Carnegie Mellon University
5000 Forbes Avenue
Pittsburgh, PA 15213
Internet: ····@cs.cmu.edu