(gobject:define-gflags "GtkEventControllerScrollFlags"
                event-controller-scroll-flags
  (:export t
   :type-initializer "gtk_event_controller_scroll_flags_get_type")
  (:none 0)
  (:vertical 1)
  (:horizontal 2)
  (:discrete 4)
  (:kinetic 8)
  (:both-axes 16))  

:none

Do not emit scroll.

:vertical

Emit scroll with vertical deltas.

:horizontal

Emit scroll with horizontal deltas.

:discrete]{Only emit deltas that are multiples of 1.

:kinetic

Emit "decelerate" after continuous scroll finishes.

:both-axes

Emit scroll on both axes.