title: Gtk+ and OpenGL bindings
body: <p>Simple and short: <strong>What is the most advanced OpenGL binding for GTK+?</strong>
  I would prefer a widget which allows me to use it similar to QGLWidget.</p>
  
  <p>Note: I stumbled upon gtkglext, gtkglarea and clutter. I read the first two have shortcomings/ serious issues.</p>