fun signal_connect(signal_name: String, to_call: GtkCallable, user_data: nullable Object) import String.to_cstring, GtkCallable.signal, Object.as not nullable `{
		NitGtkSignal *data = malloc(sizeof(NitGtkSignal));

		GtkCallable_incr_ref(to_call);
		Object_incr_ref(user_data);

		data->to_call = to_call;
		data->user_data = user_data;

		/*Use G_CALLBACK() to cast the callback function to a GCallback*/
		g_signal_connect(self,
		                 String_to_cstring(signal_name),
		                 G_CALLBACK(nit_gtk_callback_func),
		                 data);
	`}