connectUnrealize
fun connectUnrealize(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: () -> Unit): <Error class: unknown class>
Emitted when the GdkSurface associated with @widget is destroyed.
This means that method@Gtk.Widget.unrealize has been called or the widget has been unmapped (that is, it is going to be hidden).
Parameters
connectFlags
A combination of ConnectFlags
handler
the Callback to connect