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Re: Setting a color in a NSBitmapImageRep to white or black
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Re: Setting a color in a NSBitmapImageRep to white or black


  • Subject: Re: Setting a color in a NSBitmapImageRep to white or black
  • From: Graham Cox <email@hidden>
  • Date: Fri, 18 Feb 2011 11:35:20 +1100

On 18/02/2011, at 8:09 AM, Eric Gorr wrote:

> So, why can I not use [NSColor whiteColor]?
>
>
> I'm sure I'm missing something simple, but what that is, I do not know...


It may be that the colour has to match the colorspace of the bitmap, though the docs are mute on that. -greenColor is an RGB colour but -whiteColor is a grayscale colour. Perhaps no conversion to the destination space is done.

You could try using setPixel:atX:y: instead and directly set the bitmap that way, or try converting the source colours to the destination colourspace.

--Graham


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