signal callback delegate or function to connect
bool callback(string uri, gtk.label.Label label)
uri the URI that is activated (optional)
label the instance the signal is connected to (optional)
Returns true if the link has been activated
Yes.After to execute callback after default handler, No.After to execute before (default)
Signal ID
Connect to ActivateLink signal.
Gets emitted to activate a URI.
Applications may connect to it to override the default behaviour, which is to call gtk.file_launcher.FileLauncher.launch.