DMXGetScreenCount

DMXGetScreenCount(3X)					DMXGetScreenCount(3X)



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
       DMXGetScreenAttribtues(3X),  DMXChangeScreenAttributes(3X),   DMX(3X),
       Xdmx(1)



X.Org				Version 6.8.2		DMXGetScreenCount(3X)