title: difference of freeglut vs glew?
body: <p>I've recently started learning OpenGL (> 3.3) &amp; I've noticed a lot of examples &amp; tutorials use both freeglut &amp; glew, but don't really explain the difference at all. The best description I've found, after googling &amp; reading ad nauseum, has been this <a href="http://www.opengl.org/wiki/Related_toolkits_and_APIs#Context.2FWindow_Toolkits">OpenGL Related toolkits and APIs</a> but found it lacking. I've even read the tag info on SO.
  <br></p>
  
  <p>As someone really new to OpenGL I'm still trying to get a grasp of the different concepts. I've gotten to the stage of creating a basic program that uses glew, create context (on windows, VS2010), &amp; draw really basic shapes, all without the need for explicitly including freeglut. So I don't understand why I would need it.</p>
  
  <p>So my question then is, what's the <strong>difference</strong> between:
  <br>
  -freeglut
  <br>
  -glew
  <br>
  -(&amp; glfw)
  <br>
  What can one do <strong>that the other can't</strong>?</p>