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Dumb question: How does NSScrollView know the size of the thing it's scrolling?

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Dumb question: How does NSScrollView know the size of the thing it's scrolling?

Subject: Dumb question: How does NSScrollView know the size of the thing it's scrolling?
From: Rick Mann <email@hidden>
Date: Wed, 23 Jul 2008 10:43:44 -0700

What attribute of the contained views does NSScrollView (or the NSScroller, whatever) use to determine what the scroll bars look like? I read the doc a couple times, but I couldn't quite figure it out. Is it the bounds.size of my contained view? What if I'm setting a CoreGraphics CTM to zoom in on my drawing (my drawing code is all done using the CoreGraphics API)...I would want the extent of the scrollable area to grow accordingly...what attribute do I change?

Thanks!

--
Rick

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