Gtk.Widget::motion-notify-event

function callback(widget, event:Gdk.EventMotion, ):Boolean;

The ::motion-notify-event signal is emitted when the pointer moves over the widget's Gdk.Window.

To receive this signal, the Gdk.Window associated to the widget needs to enable the #GDK_POINTER_MOTION_MASK mask.

This signal will be sent to the grab widget if there is one.

widget: instance of Gtk.Widget that is emitting the signal
event: the Gdk.EventMotion which triggered this signal.
Returns: true to stop other handlers from being invoked for the event. false to propagate the event further.