XineramaQueryVersion(3X11) X11R6 XineramaQueryVersion(3X11)
NAME
XineramaQueryVersion - return the version numbers of the
Xinerama extension
SYNTAX
#include <X11/extensions/Xinerama.h>
Status XineramaQueryVersion(
Display *dpy,
int *major_version,
int *minor_version
);
ARGUMENTS
dpy Specifies the connection to the X server.
major
Returns major version number of the Xinerama extension
supported by the X server.
minor
Returns minor version number of the Xinerama extension
supported by the X server.
DESCRIPTION
XineramaQueryVersion returns the major and minor version
number of the Xinerama extension implemented by the server
associated with connection dpy.
XineramaQueryVersion returns True if the version of the
Xinerama library and Xinerama server are compatible, False
otherwise. major_version and minor_version are not updated
when False is returned.
DIAGNOSTICS
BadImplementation
The X client library uses an older version of the
Xinerama protocol that is not supported by the X
server.
BUGS
In order to conform to Xorg's proposal of a Xinerama
standard, there is a protocol incompatibility between the
Xinerama versions 1.0 (IRIX 6.5.10) and 1.1 (IRIX 6.5.11)
and the Xinerama versions 1.2 and later (IRIX 6.5.12 and
later). XineramaQueryVersion traps this protocol
incompatibility in version 1.2 and later.
The following message is printed to STDOUT:
"Xinerama server version X.x uses non-standard protocol"
if the protocols used by the X client library and X server
are not compatible (i.e. the Xinerama library is version 1.2
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XineramaQueryVersion(3X11) X11R6 XineramaQueryVersion(3X11)
or later and the Xinerama server is version 1.0 or 1.1).
XineramaQueryVersion will accompany this error with a return
value of False.
The following message is written to the SYSLOG of the X
server machine:
"Xinerama client library version Y.y uses non-standard
protocol"
if the protocols used by the X client library and X server
are not compatible (i.e. the Xinerama server is version 1.2
or later and the Xinerama library is version 1.0 or 1.1).
The X server will throw a BadImplementation error, and
XineramaQueryVersion will return False.
A workaround for this protocol incompatibility is to use a
client and server that both support the same Xinerama
version.
SEE ALSO
Xinerama(3X11), XineramaQueryExtension(3X11).
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