<para>
It is possible to get change notifications for the service state variables
that have attribute <literal>sendEvents="yes"</literal>. We'll demonstrate
- this by modifying <function>service_proxy_available_cb()</function> and using
+ this by modifying <function>service_proxy_available_cb</function> and using
gupnp_service_proxy_add_notify() to setup a notification callback:
</para>
<programlisting>static void