signal callback delegate or function to connect
bool callback(gdk.event_scroll.EventScroll event, gtk.widget.Widget widget)
event the #GdkEventScroll which triggered this signal. (optional)
widget the instance the signal is connected to (optional)
Returns true to stop other handlers from being invoked for the event. false to propagate the event further.
Yes.After to execute callback after default handler, No.After to execute before (default)
Signal ID
Connect to ScrollEvent signal.
The ::scroll-event signal is emitted when a button in the 4 to 7 range is pressed. Wheel mice are usually configured to generate button press events for buttons 4 and 5 when the wheel is turned.
To receive this signal, the #GdkWindow associated to the widget needs to enable the #GDK_SCROLL_MASK mask.
This signal will be sent to the grab widget if there is one.