1991-2006
Silicon Graphics, Inc.
glXGetClientString
3G

# glXGetClientString

return a string describing the client

## C Specification

                    const char * glXGetClientString
                    Display * dpy
                    int name

## Parameters

`dpy`

  Specifies the connection to the X server.

`name`

  Specifies which string is returned. The symbolic constants `GLX_VENDOR`, `GLX_VERSION`, and `GLX_EXTENSIONS` are accepted.

## Description

`glXGetClientString` returns a string describing some aspect of the client library. The possible values for `name` are `GLX_VENDOR`, `GLX_VERSION`, and `GLX_EXTENSIONS`. If `name` is not set to one of these values, `glXGetClientString` returns `NULL`. The format and contents of the vendor string is implementation dependent.

The extensions string is null-terminated and contains a space-separated list of extension names. (The extension names never contain spaces.) If there are no extensions to GLX, then the empty string is returned.

The version string is laid out as follows:

<major_version.minor_version><space><vendor-specific info>

Both the major and minor portions of the version number are of arbitrary length. The vendor-specific information is optional. However, if it is present, the format and contents are implementation specific.

## Notes

`glXGetClientString` is available only if the GLX version is 1.1 or greater.

If the GLX version is 1.1 or 1.0, the GL version must be 1.0. If the GLX version is 1.2, then the GL version must be 1.1. If the GLX version is 1.3, then the GL version must be 1.2.

`glXGetClientString` only returns information about GLX extensions supported by the client. Call glGetString to get a list of GL extensions supported by the server.

## See Also

glXQueryVersion, glXQueryExtensionsString, glXQueryServerString

## 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/.