gtk:file-chooser-select-multiple (object)

object -- a gtk:file-chooser widget
multiple -- true if multiple files can be selected

Accessor of the select-multiple slot of the gtk:file-chooser interface. The gtk:file-chooser-select-multiple function gets whether multiple files can be selected in the file selector. The (setf gtk:file-chooser-select-multiple) function sets whether multiple files can be selected.

This is only relevant if the action of the file chooser is set to be :open or :select-folder.