What is it all about?
GLEW (OpenGL Extension Wrangler Library) is an OpenGL utility library for easy management of OpenGL extensions. This is a free cross-platform library written in C/C++. GLEW solves the complexity of managing OpenGL extensions. It detects the extensions supported by the host machine on runtime and initializes functions associated with these extensions.
* GLEW provides efficient run-time mechanisms for determining which OpenGL extensions are supported on the target platform. OpenGL core and extension functionality is exposed in a single header file. * GLEW has been tested on a variety of operating systems, including Windows, Linux, Mac OS X, FreeBSD, Irix, and Solaris.