Add an activatable widget to the action area of a gtk.InfoBar, connecting a signal handler that will emit the response signal on the message area when the widget is activated. The widget is appended to the end of the message areas action area.
an activatable widget
response ID for child
2.18
Add an activatable widget to the action area of a gtk.InfoBar, connecting a signal handler that will emit the response signal on the message area when the widget is activated. The widget is appended to the end of the message areas action area.