(PECL gupnp >= 0.1.0)
gupnp_service_proxy_callback_set — Set service proxy callback for signal
Set service proxy callback for signal.
A service proxy identifier.
The value of signal.
The callback function for the certain signal. Typically, callback function takes on two parameters. error parameter's message being the first, and the arg is second.
User data for callback.
成功した場合に TRUE を、失敗した場合に FALSE を返します。
Issues E_WARNING either with not valid callback function or with not valid signal.