Stk.ObjectSourceObjects.
Class o is the base class for widget and other classes which can trigger events and hold properties Props.props.
type Events.ev += | Prop_changed : 'a Props.prop -> (prev:'a option -> now:'a -> unit) Events.evIntroduce the Prop_changed property to register callbacks called when the value of a given property changed. Previous and current values of the property are passed to the callback.
Transition step minimum delay, in milliseconds.
An object. See Widget arguments for props arguments.