gtk:app-chooser-button-show-dialog-item (object)

object -- a gtk:app-chooser-button widget
setting -- a boolean whether the dropdown menu shoult show a gtk:app-chooser-dialog widget

The accessor for the show-dialog-item slot gets or sets whether the dropdown menu of the button should show an entry to trigger a gtk:app-chooser-dialog widget. The gtk:app-chooser-button implementation is deprecated since 4.10.