def callback(test_obj, error, user_param1, ...)
This signal is modeled after #GstDiscoverer::discovered, and is added to exercise the path of a GLib.Error being marshalled as a boxed type instead of an exception in the introspected language.
Use via and , or emit via the introspected language.
test_obj
instance of that is emitting the signal
error
A GLib.Error if something went wrong internally in @self. You must not free this GLib.Error.
user_param1
first user parameter (if any) specified with the connect() method
...
additional user parameters (if any)