Associates the virtual event with the binding, so that the virtual event
will trigger whenever the binding occurs. Virtual events may be any
string value and binding may have any of the values allowed for the
binding argument of the bind method. If the virtual event is already defined, the new binding
adds to the existing bindings for the event.
Associates the virtual event with the binding, so that the virtual event will trigger whenever the binding occurs. Virtual events may be any string value and binding may have any of the values allowed for the binding argument of the bind method. If the virtual event is already defined, the new binding adds to the existing bindings for the event.