On Apr 1, 2010, at 4:29 PM, Laurent Daudelin wrote:
Anybody has a quick way to remove the alpha channel from an NSImage before I save it as a PNG? I've looked everywhere I didn't find anything obvious.
I think you can draw a solid white rectangle over it using the proper compositing mode and it will replace the transparent parts. I can never keep the different compositing modes straight, but I think NSCompositeDestinationOver might work.
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