Some of the most useful information on the X library can be
found in the include files
X.h. These files are usually
There are several example programs in this document. More comprehensive
examples are in
/export/Examples/X on the CUED
teaching system and in the
X source tree (/usr/src/X11R4
on the CUED teaching system). Even more examples are available via
Manpages for the routines are online.
The online help facility at CUED contains a file of answers to frequently asked questions and some discussion of advanced topics.
Relevant newsgroups are:- comp.windows.x, comp.sources.x