title: OpenGL interface - background texture/image
body: <p>I am currently developing a game similar to "Who wants to be a billionaire", the type of game where you are asked a question and you are given several answers from which you have to choose. I designed a background picture in Photoshop that has a "screen" for the question and another 4 "buttons" for the answers. </p>
  
  <p>I am wondering how I could use the image as a window background and be able to click on those "buttons" I designed in Photoshop. </p>
  
  <p>What do you suggest? Which would be the best approach?</p>