NAME¶
DMXGetScreenCount - determine number of back-end screens
SYNOPSIS¶
#include <X11/extensions/dmxext.h>
Bool DMXGetScreenCount(Display *dpy,
int *screen_count);
DESCRIPTION¶
DMXGetScreenCount() returns the number of back-end screens that a
Xdmx(1) server controls. Since a DMX screen usually fills all of the
available area on a back-end server, there is usually a one-to-one
correspondence between DMX screens and backend servers. However, it is also
possible for a DMX screen to cover only part of the available area on a
back-end server, and for more than one DMX screens to occupy different parts
of the visible area on the same back-end server.
A DMX screen may be managed as a regular X screen in the
Xdmx(1) server or may be joined with other DMX screens using
Xinerama.
RETURN VALUE¶
DMXGetScreenCount() sets screen_count and returns True
unless there is a protocol error.
NOTES¶
If Xinerama is active, only one logical screen will be available to clients of
the Xdmx(1) server. However, this call will accurately reflect the
number of composite back-end screens that the Xdmx(1) server is using.
