title: Turning an NSImage* into a CGImageRef?
body: <p>Is there an easy way to do this that works in 10.5? </p>
  
  <p>In 10.6 I can use nsImage CGImageForProposedRect: NULL context: NULL hints: NULL</p>
  
  <p>If I'm not using 1b black and white images (Like Group 4 TIFF), I can use bitmaps, but cgbitmaps seem to not like that setup... Is there a general way of doing this?</p>
  
  <p>I need to do this because I have an IKImageView that seems to only want to add CGImages, but all I've got are NSImages. Currently, I'm using a private setImage:(NSImage*) method that I'd REALLY REALLY rather not be using... </p>