Re: NSView -scrollPoint doesn't work with mouse wheel?

FROM : Bill Bumgarner
DATE : Mon Dec 31 18:50:12 2007

On Dec 31, 2007, at 7:28 AM, Allen Dang wrote:
> NSPoint newPosition = NSMakePoint(0.0, 100.0);
> [[scrollView documentView] scrollPoint:newPosition];
>
> Ok, the scrollView did scroll to the new position, then I tried to 
> continuously scroll down by using the mouse wheel, but the 
> NSScrollView didn't work as I expected.
> It will return to the the point(0.0, 0.0) at first and start to 
> scroll down rather then keep scrolling from point(0.0, 100.0).


If the scroll view contains a text view, then use NSText's -
(void)scrollRangeToVisible:(NSRange)range; method.

For NSView, try -scrollRectToVisible: instead.  It is sort of the 
focal point for all scrolling operations in NSView.

However, if the behavior persists then -- obviously -- something else 
is going on.    Are you setting the scrolling position from a thread, 
perchance?  That could cause confusion.

b.bum