[ Version ( since = "2.12" ) ]
public bool has_tooltip { get; set; }

Enables or disables the emission of query_tooltip on widget.

A value of true indicates that widget can have a tooltip, in this case the widget will be queried using query_tooltip to determine whether it will provide a tooltip or not.

Note that setting this property to true for the first time will change the event masks of the GdkWindows of this widget to include leave-notify and motion-notify events. This cannot and will not be undone when the property is set to false again.