Kenny Tilton  <ktilton@nyc.rr.com> wrote:
+---------------
| Someone suggested wxWindows. Looks huge, but what do I do with the C++ 
| classes? We should be building a /Lisp/ GUI. I love the idea of 
| leveraging existing libraries, but not where I am buying into a 
| framework, I just want the display capabilities (events are easy) so the 
| framework can be in Lisp (where Lisp users can get at it).
+---------------

Look at how PLT Scheme, or rather, MrEd, the application- & GUI-builder
that runs under DrScheme does it. They use a slightly modified version
of wxWindows for their cross-platform (MS, Mac, Unix) GUI base, and IIRC
import the C++ classes fairly straightforwardly into MzScheme's single-
inheritance object system. See <URL:http://www.plt-scheme.org/software/mred/>
for more details.

Note that it does use MzScheme's thread system ("Lisp threads", as people
were calling it at ILC 2002, not "O/S threads"), so trying to copy what
they did directly would almost certainly need a Lisp implementation with
some kind of threads...


-Rob

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Rob Warnock, PP-ASEL-IA		<rpw3@rpw3.org>
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