Re: Setting a color in a NSBitmapImageRep to white or black
Re: Setting a color in a NSBitmapImageRep to white or black
- Subject: Re: Setting a color in a NSBitmapImageRep to white or black
- From: John Joyce <email@hidden>
- Date: Fri, 18 Feb 2011 09:40:01 +0900
On Feb 18, 2011, at 9:35 AM, Graham Cox wrote:
>
> 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
Instead of -whiteColor is it not possible to simply create a color using 255 a.k.a. FF for R, G and B respectively?
This is white in RGB.
Why would whiteColor not be RGB?
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