For widgets that support scrolling, sets the scroll adjustments and
returns TRUE. For widgets that don't support scrolling, does
nothing and returns FALSE. Widgets that don't support scrolling
can be scrolled by placing them in a GtkViewport, which does
support scrolling.
For widgets that support scrolling, sets the scroll adjustments and returns TRUE. For widgets that don't support scrolling, does nothing and returns FALSE. Widgets that don't support scrolling can be scrolled by placing them in a GtkViewport, which does support scrolling.