If set to `""` or NULL, the button won't be shown.
The button can be used with a gio.action.Action, or with the adw.banner.Banner.buttonClicked signal.
string buttonLabel() @propertyGet buttonLabel property.
If set to `""` or NULL, the button won't be shown.
The button can be used with a gio.action.Action, or with the adw.banner.Banner.buttonClicked signal.
void buttonLabel(string propval) @propertySet buttonLabel property.
propval | The label to show on the button. If set to `""` or NULL, the button won't be shown. The button can be used with a gio.action.Action, or with the adw.banner.Banner.buttonClicked signal. |