title: Capturing screen with SDL?
body: <p>how would i go about capturing my computer's screen with SDL?  is this possible with SDL?  i wanted to try something like applying a surface to the main renderer (if that makes any sense either) and then call:</p>
  
  <pre><code>SDL_SaveBMP(back_buffer, "screen.png");
  </code></pre>
  
  <p>how would i do what i want to do if it is possible?  has anyone done this before?</p>