Thu May 11 05:27:00 GMT 2006
checkX is a little utility I wrote that tests to see if (a) the X11
client DLLs are installed on the machine, and (b) the Xserver on
$DISPLAY (or -d x.x.x.x:x) is running and usable.
It does not link against the Xll libraries itself, but attempts to
dlopen it, using a fuzzy name/path search. Both the search path and the
target name are explicitly overridable via commandline arguments.
In its default mode, checkX returns a 0 status if X is present, 1
otherwise, and generates no output. It is intended for use in scripts,
which need to intelligently decide whether to launch an X-based
application or a non-X (native MS Gui? console?) one.
checkX determines if X is installed and Xserver is running
returns 0 if yes, nonzero otherwise
-h|--help : prints this help message
-d|--display STR : use STR instead of $DISPLAY
-l|--location : print location of Xlib DLL on stdout
-a|--appendpath STR : append STR to value of $PATH (cumulative)
-p|--prependpath STR : prepend STR to value of $PATH (cumulative)
-r|--replacepath STR : use STR instead of $PATH when searching
-x|--xlibname STR : use exactly STR instd of fuzzy cygX11-*.dll
-t|--timeout FLT : allow FLT seconds to connect with Xserver
defaults to 0.5, use 0.0 for Xlib's (safe, 12s)
--nogui : disable informational popups
--notty : disable stderr messages
--debug : turn on debugging messages
--no-silent : allow error, warning, and info messages
Note that -a defaults to '/usr/bin:/usr/X11R6/bin'. To eliminate the
default, use '-a ""'
To update your installation, click on the "Install Cygwin now" link on
the http://cygwin.com/ web page. This downloads setup.exe to your
system. Then, run setup and answer all of the questions.
If you have questions or comments, please send them to the Cygwin
mailing list at: email@example.com .
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