is-double-click?

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`is-double-click?`

For a list box event, returns #t if the event is a double-click, #f otherwise.

Double-selection events are generated only for instances of mred:list-box% used with the default on-default-action in mred:list-box%and on-default-action in mred:panel%.

(send a-wx:command-event is-double-click?) -> boolean
Returns #t if get-selection-type in wx:command-event% returns 2.