Express Windows

["Christopher C. Stacy" <cstacy@BBN.COM>]

I just received a glossy product announcement from Liszt Programming that
sounds pretty exciting, so I'll pass along some of the information here.
I haven't seen a demo; I heard that it was shown in DC last week.

Liszt Programming has come out with a product called "Express Windows", 
that they claim is "the most powerful window toolkit for Common Lisp and X."
It runs on standard platforms and provides user interface features like the
ones on the Symbolics machines.  The pitch seems to be that your programs can
fully exploit the user-interface features found on your Lisp Machine (where
you would rather do development) without worrying about portability.

Express Windows is a Common Lisp package that you run on your delivery machine
to endow it with presentation-types, accepting-values menus, and other
user-interface wonderfulness.  They say that all the usual forms like
DEFINE-PRESENTATION-TYPE are available.  I asked one of the Liszt programmers
if it was really source compatible with Genera, and he said, "The only thing
we didn't get around to was MAP-OVER-SUBTYPES", but that everything else was
there.  They also have: table formatting, command processor, scrolling lisp
listener, and a tool for generating application window frames.  
If you need to hack X directly, that interface is also available.

Their telephone number is (703) 683-3916.