Hullo Martin, maybe you should check:
v0=[scrollviewfromNib verticalLineScroll]; v1=[otherscrollview verticalLineScroll]; where scrollviewfromNib and otherscrollview correspond to your two controls. then if (fabs(v0-v1)>=0.00001) ;-) you know.. hope this helps, pg On Thu, Sep 10, 2009 at 4:01 PM, Martin Redington <mar...@mildmanneredindustries.com> wrote: > I've got two NSScrollView's in separate windows, that I'm trying to > scroll programmatically in synchrony. > > I'm calling > > [[scrollView contentView] scrollToPoint:theNewPoint]; > > This works fine when the new y value is a whole integer, but I'm > seeing some strange behaviour when trying to scroll by fractional > amount (e.g. .25 or .5 of a pixel). > > In one window, the fractional pixel values are respected. If I scroll > the origin from 50.0 to 50.25, its 50.25 when I come to scroll again. > > However, in the other window, values seem to get rounded. e.g. If I > scroll from 50.0 to 50.25, the y origin is still 50.0 when I come > round to scroll again. If I scroll from 50.0 to 50.5, then the y > origin actually moves to 51.0 > > There are a few minor differences in how I'm setting up the windows > (one is extracted fully set up from a nib, while the other has a > manually created NSTextView added to it after it's unarchived), but > inspection of the view hierarchy shows no obvious differences between > the two setups. > > Hopefully this is something dumb that I've just overlooked, but if > anyone can point me in the right direction, that would be great ... _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
