g_param_spec_override ("preview-widget-active",
G_TYPE_BOOLEAN,
G_PARAM_READWRITE));
+ g_object_class_install_property (klass,
+ GTK_FILE_CHOOSER_PROP_EXTRA_WIDGET,
+ g_param_spec_override ("extra-widget",
+ GTK_TYPE_WIDGET,
+ G_PARAM_READWRITE));
g_object_class_install_property (klass,
GTK_FILE_CHOOSER_PROP_SELECT_MULTIPLE,
g_param_spec_override ("select-multiple",