title: How to get RGBA color of a specific pixel in CCSprite
body: <p>I am writing a game for iPhone using the cocos2d for iPhone v1.0.1 library. To get my game work fine I need to check the color of a specific pixel in a CCSprite when i know the coordinates. I have been looking for the solution for two days but I did not find any working. Maybe someone did this before and knows how to do it?</p>
  
  <p>Another posibility for me would be creating an UIImage from CCSprite if this is easier...</p>
  
  <p>greetings,
  jarektb</p>