On 13 Jan 2010, at 12:32 PM, David Blanton wrote:

> I set the knob position of the horz and vert scrollers as follows:
> 
> - (void)centerScrollers {
>       
>       [m_hScroller setDoubleValue:0.5];
>       [m_vScroller setDoubleValue:0.5];
>       
> }
> 
> Then when I move either knob with the mouse the other knob moves as well by 
> some random amount.

I think programmatically hauling the NSScrollers around just puts the UI out of 
sync with the actual position of the scroll view. 

If you want to make a certain part of a view visible inside an NSScrollView, 
send scrollRectToVisible: to that view. See also the cousin scroll... methods 
of NSView.

        — F

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