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.

SEE ALSO

       DMXGetScreenAttributes(3), DMXChangeScreensAttributes(3), DMX(3), Xdmx(1)

X Version 11                                      libdmx 1.1.4                              DMXGetScreenCount(3)