C SPECIFICATION

       GLboolean GLAPIENTRY gluCheckExtension( const GLubyte *extName,
                                               const GLubyte *extString )

PARAMETERS

       extName    Specifies an extension name.

       extString  Specifies  a  space-separated  list  of extension names sup-
                  ported.

DESCRIPTION

       gluCheckExtension returns GL_TRUE if  extName  is  supported  otherwise
       GL_FALSE is returned.

       This is used to check for the presence for OpenGL, GLU or GLX extension
       names  by  passing  the  extension  strings  returned  by  glGetString,
       gluGetString,  glXGetClientString,  glXQueryExtensionsString,  or  glX-
       QueryServerString, respectively, as extString.

NOTES

       Cases where one extension name is a substring of another are  correctly
       handled.

       There may or may not be leading or trailing blanks in extString.

       Extension names should not contain embedded spaces.

       All strings are null-terminated.

SEE ALSO

       glGetString,   gluGetString,   glXGetClientString,   glXQueryExtension-
       sString, glXQueryServerString



                                                         GLUCHECKEXTENSION(3G)