libX11 - Core X11 protocol client library
Documentation for this library can be found in the included man pages,
-the xlib spec from the doc/xorg-docs module, also available at:
+and in the Xlib spec from the specs subdirectory, also available at:
- http://xorg.freedesktop.org/releases/X11R7.0/doc/PDF/xlib.pdf
+ http://www.x.org/releases/current/doc/libX11/libX11/libX11.html
+ http://www.x.org/releases/current/doc/libX11/libX11/libX11.pdf
and the O'Reilly Xlib books, which they have made freely available online,
though only for older versions of X11: