Creates a new plug widget inside the GtkSocket identified by socket_id. If socket_id is 0, the plug is left "unplugged" and can later be plugged into a GtkSocket by gtk_socket_add_id().
the window ID of the socket, or 0.
ConstructionException GTK+ fails to create the object.
See Implementation
Creates a new plug widget inside the GtkSocket identified by socket_id. If socket_id is 0, the plug is left "unplugged" and can later be plugged into a GtkSocket by gtk_socket_add_id().