<URL: http://www.x.org/releases/X11R7.6/doc/libX11/specs/libX11/libX11.html#Opening_the_Display > To open a connection to the X server that controls a display, use XOpenDisplay. - AllPlanes() - XAllPlanes + declaration of XOpenDisplay display_name Specifies the hardware display name, which determines the display and communications domain to be used. On a POSIX-conformant system, if the display_name is NULL, it defaults to the value of the DISPLAY environment variable.
http://patchwork.freedesktop.org/patch/4950/
commit b9ff9cfd5c56ae6d52c6503f7019756d9de29557 Author: Alan Coopersmith <alan.coopersmith@oracle.com> Date: Thu Apr 14 13:47:12 2011 -0700 specs/libX11: Fix XOpenDisplay() prototype in chapter 2 [bug 36244] Was incorrectly showing AllPlanes() instead when describing XOpenDisplay() https://bugs.freedesktop.org/show_bug.cgi?id=36244 Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.