DMXGetScreenCount(3)

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 cor-
       respondence 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  dif-
       ferent 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 Version 11                     libdmx 1.0.2            DMXGetScreenCount(3X)