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Re: When is (NSColor) black not black?

My guess would be that something odd is going on with respect to how the colour is represented. For example it's very easy for two HSL colours to be black, but not be equal (they have the same lightness=0, but differing hue). You may need to write your own routine to decide if they really do represent a black colour.

Bob

On May 2, 2005, at 7:06 PM, Mark Dawson wrote:


I'm not sure if I'm doing a compare wrong, but if I set my color wheel to black (10.3.9, using the "named" colors/3 section from left of color wheel), it doesn't seem to compare correctly:

if ([[colorWheel color] isEqual:[NSColor blackColor]])
  doSomething;  <--- never equals

Is there something further I need to do?

Thanks!

mark

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 >When is (NSColor) black not black? (From: Mark Dawson <email@hidden>)



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