signal callback delegate or function to connect
void callback(gtk.flow_box_child.FlowBoxChild child, gtk.flow_box.FlowBox flowBox)
child the child that is activated (optional)
flowBox the instance the signal is connected to (optional)
Yes.After to execute callback after default handler, No.After to execute before (default)
Signal ID
Connect to ChildActivated signal.
Emitted when a child has been activated by the user.