1DMXGetScreenCount(3)       Library Functions Manual       DMXGetScreenCount(3)
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NAME

6       DMXGetScreenCount - determine number of back-end screens
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SYNOPSIS

9       #include <X11/extensions/dmxext.h>
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11       Bool DMXGetScreenCount(Display *dpy,
12                              int *screen_count);
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DESCRIPTION

15       DMXGetScreenCount()  returns  the  number  of  back-end  screens that a
16       Xdmx(1) server controls.  Since a DMX screen usually fills all  of  the
17       available area on a back-end server, there is usually a one-to-one cor‐
18       respondence between DMX screens and backend servers.   However,  it  is
19       also possible for a DMX screen to cover only part of the available area
20       on a back-end server, and for more than one DMX screens to occupy  dif‐
21       ferent parts of the visible area on the same back-end server.
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23       A DMX screen may be managed as a regular X screen in the Xdmx(1) server
24       or may be joined with other DMX screens using Xinerama.
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RETURN VALUE

27       DMXGetScreenCount() sets screen_count and returns True unless there  is
28       a protocol error.
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NOTES

31       If  Xinerama  is  active,  only one logical screen will be available to
32       clients of the Xdmx(1) server.   However,  this  call  will  accurately
33       reflect  the  number  of  composite  back-end  screens that the Xdmx(1)
34       server is using.
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SEE ALSO

37       DMXGetScreenAttributes(3),    DMXChangeScreensAttributes(3),    DMX(3),
38       Xdmx(1)
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42X Version 11                     libdmx 1.1.3             DMXGetScreenCount(3)
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