Here's probably a stupid question, but I am unable to figure this out:

NSScrollView on MacOS X 10.6 and before _hides_ the knob of a scroller when its 
proportion becomes 1 or larger, i.e. when all of the view is visible along the 
direction of the scroller and there is nothing to scroll.

I have a custom view using its own scrollers (NSScroller) because NSScrollView 
does not allow to do what I need. However, I am unable to make the knob 
disappear  when all of the view is visible along the scroller. I have tried 
calling setKnobProportion: with values of 0, 1, 2 or -1, but the knob is always 
there, with varying size.

I guess I could override drawKnob, but that sounds hack-ish.

Does anyone know what to do?

Thanks for any advice in advance

Kurt Sutter

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