The gfile property of type g:file (Read / Write / Construct Only) The g:file object used by the gtk:app-chooser-dialog widget. The dialog's content type will be guessed from the file, if present.
heading
The heading property of type :string (Read / Write)
The text to show at the top of the dialog. The string may contain Pango markup. Default value: nil
The gtk:app-chooser-dialog implementation is deprecated since 4.10.
The application selection widgets should be implemented according to the
design of each platform and/or application requiring them.