Lucid CLX and XVision

[jussila@pepper.rc.nokia.fi (Pekka Jussila RC 910)]

Could anyone give advice on using Lucid Common Lisp's
CLX-based Window Tool Kit (the more common one is on SunView)
together with XVision? The latter is a program which makes it
possible to use X-Windows - applications in PC with Microsoft
Windows user interface.

The application that was tried ran OK with server and client
in different Sun workstations. But XVision could not be used
as a server with that same windowing Lisp application. The
following error message appeared when Lucid's Window Tool Kit
tried to initialize the root viewport on XVision:

"No appropriate visual class exists:
  ((1) (4 #<XLIB:VISUAL-INFO 8-bit STATIC-COLOR |displayname| ..."

CLX source code happened to be available and there struct
visual-info was defined as follows:

(defstruct visual-info
  (id <unspec> :type card29)
  (class <unspec> :type (member :static-gray :static-color :true-color
                                :gray-scale :pseudo-color :direct-color))
  (red-mask <unspec> :type pixel)
  (green-mask <unspec> :type pixel)
  (blue-mask <unspec> :type pixel)
  (bits-per-rgb <unspec> :type card8)
  (colormap-entries <unspec> :type card16))

My guess is that the class-field of some specific struct does not 
get its correct value.

Now I am asking: Does anyone know what goes wrong here? Has anyone used
XVision with CLX succesfully? If so, how?

If you have ideas, advice or instructions, I'd be grateful to
receive them.

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  Pekka Jussila                          Email:
  Nokia Research Center                  jussila@rc.nokia.fi
  Dept. of Knowledge Technology          Tel.Int:          
  P.O.Box 156                            + 358 0 4376 339  
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