G
gluGetString
Chapter 7
211
gluGetString
gluGetString: return a string describing the GLU version or GLU extensions.
C Specification
constGLubyte *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
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