title: CGBitmapContextCreate with kCGImageAlphaNone
body: <p>I desperately need to create a CGContextRef WITHOUT an alpha channel.  Unfortunately, with Core Graphics you CANNOT specify kCGImageAlphaNone with CGBitmapCreateContext.</p>
  
  <p>Can someone PLEASE post a working example of how I can create a CGContextRef WITHOUT an alpha channel?</p>
  
  <p>The reason I need this is because I'm ultimately trying to call CGImageCreateWithMaskingColors, which, of course, will NOT work if the CGImageRef provided has an alpha channel.</p>
  
  <p>Please post a working example. If you do you can relish in the fact that you will be on the cutting edge and will be the FIRST person to do so!  Please post!</p>