gluGetString Subroutine

Purpose

Returns a string describing the GLU version or GLU extensions.

C Syntax

constGLubyte *gluGetString(
    GLenum	 name)

Parameters

name

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

Description

The gluGetString subroutine 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

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

The gluGetString subroutine 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.

Related Information

glGetString