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NSReadPixel on a QCView

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NSReadPixel on a QCView

Subject: NSReadPixel on a QCView
From: Aaron Tuller <email@hidden>
Date: Tue, 10 May 2005 17:59:48 -0700

Anyone have any good ideas on how to read the color at a point in a Quartz Composer view?

I tried, though I figured it wouldn't work and it didn't, locking focus on the view using it the "normal" NSView way. I also tried init'ing a NSBitmapImageRep with the QCView, same deal.

I couldn't find a good patch in Quartz Composer to get the color at a point. did i just miss it?

Why do I want to do this? I want to provide eyedropper like functionality for the view, so if the user clicks on the picture at a certain point, I can use that color for something else.

Thanks!

-aaron
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