Re: NSReadPixel
Re: NSReadPixel
- Subject: Re: NSReadPixel
- From: Kyle Sluder <email@hidden>
- Date: Fri, 10 Feb 2012 21:53:55 -0800
On Fri, Feb 10, 2012 at 4:44 PM, koko <email@hidden> wrote:
> I have two monitors connected.
>
> When I call NSreadPixel with a point that is on the main screen, origin 0,0 it returns the appropriate NSColor;
>
> When I call NSreadPixel with a point that is on the 2nd screen, origin -1280,0 it returns nil as the NSColor;
>
> So, how do I get the NSColor for a pixel whose x coordinate is <0?
1. Are you sure you're actually passing the correct point? NSReadPixel
operates in the coordinate system of the currently-focused view. You
might be getting the right color by sheer luck.
2. Why are you using NSReadPixel at all? There might be better ways of
accomplishing your goal.
--Kyle Sluder
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