title: Loading images in openGL
body: <p>I'm currently learning how to load and use images in openGL.
  I tried many examples of several tutorials.
  Many of the tutorials use a function: LoadBMP or something.
  This function was not declared by the headers I use.</p>
  
  <p>Do you need an appart header for the function wich loads an image?
  I looked at the openGL wikipedia, and they say that there exists 3 such headers.</p>
  
  <p>Or do I have it wrong?
  Do you need openGL 3.0 or higher to load images?</p>