[Mac Boy]

I read somewhere (I think it was in the Apple Documentation for NSView) that overlapping subviews of an NSView is not recommended, but no reason was given. An app I'm working on does this extensively. Is there any particular reason why this is a bad thing, besides the performance hit lots of views tends to incurr?

Thanks,
Ross

[Rickster]

It's because the view architecture doesn't really model layering. So depending on what happens at run time, two overlapping views may change their relative z-order. Or they won't nicely handle areas where a transparent part of one view overlaps the other.