> (IupGetAttribute(n,IUP_SCROLLBAR) && iupStrEqual(IupGetAttribute > (n,IUP_SCROLLBAR),IUP_YES)) > in setposx. Easily fixed by changing the canvas initializer > to scrollbar="YES". That's a recurrent flaw in IUP 2.x. I'm making sure that this kind of value is case insensitive in IUP 3. Best, scuri