is-selection?

For a list box event, returns #t if the event is a selection for a single-selection list box, #f otherwise.

This method never returns #t for multiple-selection list boxes. For such lists, the event only indicates that the selection may have changed, but the list box must be inspected to determine how it was changed.

• (send a-wx:command-event is-selection?) -> boolean

  Returns #t if get-selection-type in wx:command-event% returns 1.