void Gtk2_ScrollingLabel::setStartSignal (
setStartSignal() will make the event box listen for the signal $signal and will envoke startScroll() when ever it is heard. The signal should be a signal that GtkEventBox listens for normally or a button press event.
string $signal - The Gtk signal to connect to startScroll().
returns The handler id for the connection.
This function can not be called statically.