title: How to read pixel colors using SDL2?
body: <p>I would like to load a png image, and get the color of some of it's pixels (in 32bit RGBA format). I've searched a lot, but haven't found a good working solution for this.</p>
  
  <p>What I've found, is pixel manipulation using <code>SDL_LockTexture</code>. But don't want to change the image, just read some of its pixels.</p>