addChoice
open fun addChoice(id: String, label: String, options: List<String>? = null, optionLabels: List<String>? = null)
Adds a 'choice' to the file chooser.
This is typically implemented as a combobox or, for boolean choices, as a checkbutton. You can select a value using method@Gtk.FileChooser.set_choice before the dialog is shown, and you can obtain the user-selected value in the signal@Gtk.Dialog::response signal handler using method@Gtk.FileChooser.get_choice.
Parameters
id
id for the added choice
label
user-visible label for the added choice
options
ids for the options of the choice, or null for a boolean choice
optionLabels
user-visible labels for the options, must be the same length as @options