gluCheckExtension - determines if an extension name is supported
GLboolean gluCheckExtension( | const GLubyte* | extName, |
| const GLubyte* | extString); |
extNameSpecifies an extension name.
extStringSpecifies a space-separated list of extension names supported.
gluCheckExtension returns GLU_TRUE if extName is supported otherwise
GLU_FALSE is returned.
This is used to check for the presence for OpenGL ES, GLU ES or EGL by passing the extension strings returned by glGetString,
gluGetString or eglQueryString
respectively, as extString.
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.
Copyright c 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/.