gtk:list-box-adjustment (listbox)

listbox -- a gtk:list-box widget
adjustment -- a gtk:adjustment object

The gtk:list-box-adjustment function gets the adjustment (if any) that the list box uses for vertical scrolling. The (setf gtk:list-box-adjustment) function sets the adjustment.

For instance, this is used to get the page size for PageUp/Down key handling. In the normal case when the list box is packed inside a gtk:scrolled-window widget the adjustment from that will be picked up automatically, so there is no need to manually do that.