Reference Manual gluGetString Subroutine Purpose Returns a string describing the GLU version or GLU extensions. The gluGetString subroutine returns a pointer to a static string describing the GLU version or the GLU extensions that are supported. Its format and contents depend on the implementation. The standard GLU contains a basic set of features and capabilities.
All strings are null-terminated.
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. The glGetString subroutine.