1991-2006
Silicon Graphics, Inc.
gluGetString
3G

# gluGetString

return a string describing the GLU version or GLU extensions

## C Specification

                    const GLubyte * gluGetString
                    GLenum name

## Parameters

`name`

  Specifies a symbolic constant, one of `GLU_VERSION`, or `GLU_EXTENSIONS`.

## Description

`gluGetString` returns a pointer to a static string describing the GLU version or the GLU extensions that are supported.

The version number is one of the following forms:

major_number.minor_number major_number.minor_number.release_number.

The version string is of the following form:

version number<space>vendor-specific information

Vendor-specific information is optional. Its format and contents depend on the implementation.

The standard GLU contains a basic set of features and capabilities. If a company or group of companies wish to support other features, these may be included as extensions to the GLU. If `name` is `GLU_EXTENSIONS`, then `gluGetString` returns a space-separated list of names of supported GLU extensions. (Extension names never contain spaces.)

All strings are null-terminated.

## Notes

`gluGetString` only returns information about GLU extensions. Call `glGetString` to get a list of GL extensions.

`gluGetString` is an initialization routine. Calling it after a glNewList results in undefined behavior.

## Errors

NULL is returned if `name` is not `GLU_VERSION` or `GLU_EXTENSIONS`.

## See Also

glGetString

## 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/.