signal callback delegate or function to connect
void callback(string arg1, atk.object.ObjectAtk objectAtk)
arg1 the text to be announced. (optional)
objectAtk 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 Announcement signal.
The "announcement" signal can be emitted to pass an announcement on to be read by a screen reader.
Depcrecated (2.50): Use AtkObject::notification instead.