On Aug 20, 2012, at 7:03 PM, Uli Kusterer <witness.of.teacht...@gmx.net> wrote:
> essentially subclass all the controls and override drawRect: (and mouseDown: 
> where needed) to get our custom graphics in there.

One note: Many controls on the Mac are NSCell-based NSControls, in which case 
you generally want to override the drawBezelWithFrame:inView, 
drawWithFrame:inView: etc. methods.

Also, I think scrollers were also a bit iffy when used as overlay scrollers: I 
think drawRect: wasn't called and instead the drawKnob method was called 
directly, or something like that. It's been a while. But I must have had a bad 
day doing NSScroller, because I later found out simpler ways of doing some 
things, so don't quote me on this and ignore it if it works for you.

Cheers,
-- Uli Kusterer
"The Witnesses of TeachText are everywhere..."
http://www.zathras.de


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