DISPLAY not set by "-display" command-line option

David> I'm got Win2k on my desktop, and using ReflectionX to David> connect to a Linux system. I can run both "rxvt" and David> "XEmacs" through ReflectionX so they show up correctly on David> my desktop. However, in the rxvt shell, I can echo the David> value of $DISPLAY, and it shows up correctly with the IP David> address of my PC. However, if I echo $DISPLAY in a shell David> buffer in XEmacs, or even through '(getenv "DISPLAY")' in David> my *scratch* buffer, it just shows blank or "nil". Both David> "rxvt" and "XEmacs" are being run with a "-display" David> command-line parameter. It is not at all clear to me that rxvt's behavior is not a bug. It certainly would be in XEmacs, since XEmacs can (and regularly does in my usage) display frames on many X devices. What do you do if DISPLAY is set and -display is different? To handle this correctly on XEmacs what you would need to do is put code to query the frame in which the shell buffer appears and add the DISPLAY variable to the environment of the command. See `comint-input-filter-functions'. If you know that you will never invoke X programs from that shell buffer on the "wrong" display, you can do ;; untested but should work (add-to-hook 'shell-mode-hook #'(send-invisible (concat "export DISPLAY=" (device-connection)))) The other solution is to start with DISPLAY=... xemacs ... -- University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Institute of Policy and Planning Sciences Tel/fax: +81 (298) 53-5091 _________________ _________________ _________________ _________________ What are those straight lines for? "XEmacs rules."