69 lines
2.6 KiB
Groff
69 lines
2.6 KiB
Groff
.\" $XFree86$
|
|
.\"
|
|
.\" Copyright 2004 Red Hat Inc., Durham, North Carolina.
|
|
.\" All Rights Reserved.
|
|
.\"
|
|
.\" Permission is hereby granted, free of charge, to any person obtaining
|
|
.\" a copy of this software and associated documentation files (the
|
|
.\" "Software"), to deal in the Software without restriction, including
|
|
.\" without limitation on the rights to use, copy, modify, merge,
|
|
.\" publish, distribute, sublicense, and/or sell copies of the Software,
|
|
.\" and to permit persons to whom the Software is furnished to do so,
|
|
.\" subject to the following conditions:
|
|
.\"
|
|
.\" he above copyright notice and this permission notice (including the
|
|
.\" next paragraph) shall be included in all copies or substantial
|
|
.\" portions of the Software.
|
|
.\"
|
|
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
.\" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
.\" NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
|
|
.\" BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
.\" ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
.\" CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
.\" SOFTWARE.
|
|
.TH DMXGetScreenCount __libmansuffix__ __vendorversion__
|
|
.SH NAME
|
|
DMXGetScreenCount \- determine number of back-end screens
|
|
.SH SYNOPSIS
|
|
.B #include <X11/extensions/dmxext.h>
|
|
.sp
|
|
.nf
|
|
.BI "Bool DMXGetScreenCount(Display " *dpy ,
|
|
.BI " int " *screen_count );
|
|
.fi
|
|
.SH DESCRIPTION
|
|
.B DMXGetScreenCount()
|
|
returns the number of back-end screens that a
|
|
.BR 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.
|
|
.PP
|
|
A DMX screen may be managed as a regular X screen in the
|
|
.BR Xdmx (1)
|
|
server or may be joined with other DMX screens using Xinerama.
|
|
.SH "RETURN VALUE"
|
|
.B DMXGetScreenCount()
|
|
sets
|
|
.I screen_count
|
|
and returns
|
|
.B True
|
|
unless there is a protocol error.
|
|
.SH NOTES
|
|
If Xinerama is active, only one logical screen will be available to
|
|
clients of the
|
|
.BR Xdmx (1)
|
|
server. However, this call will accurately reflect the number of
|
|
composite back-end screens that the
|
|
.BR Xdmx (1)
|
|
server is using.
|
|
.SH "SEE ALSO"
|
|
.BR DMXGetScreenAttribtues "(__libmansuffix__), "
|
|
.BR DMXChangeScreenAttributes "(__libmansuffix__), "
|
|
.BR DMX "(__libmansuffix__), " Xdmx (1)
|