1991-2006 Silicon Graphics, Inc.
glXQueryVersion 3G
glXQueryVersion return the version numbers of the GLX extension

## C Specification

Bool `glXQueryVersion` Display * dpy int * major int * minor

## Parameters

dpy

  Specifies the connection to the X server.

major

  Returns the major version number of the GLX server extension.

minor

  Returns the minor version number of the GLX server extension.

## Description

`glXQueryVersion` returns the major and minor version numbers of the GLX extension implemented by the server associated with connection dpy. Implementations with the same major version number are upward compatible, meaning that the implementation with the higher minor number is a superset of the version with the lower minor number.

major and minor do not return values if they are specified as `NULL`.

## Errors

`glXQueryVersion` returns `False` if it fails, `True` otherwise.

major and minor are not updated when `False` is returned.

## See Also

glXQueryExtension

## Copyright

Copyright 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.