* @signal_flags: The signal flags as passed in to g_signal_new().
* @return_type: The return type for user callbacks.
* @n_params: The number of parameters that user callbacks take.
- * @param_types: The individual parameter types for user callbacks, note that the
- * effective callback signature is:
+ * @param_types: (array length=n_params): The individual parameter types for
+ * user callbacks, note that the effective callback signature is:
* <programlisting>
* @return_type callback (#gpointer data1,
* [param_types param_names,]