(PECL gupnp >= 0.1.0)
gupnp_service_proxy_callback_set — Set service proxy callback for signal
$proxy
, int $signal
, mixed $callback
[, mixed $arg
] )Set service proxy callback for signal.
proxy
A service proxy identifier.
signal
The value of signal.
GUPNP_SIGNAL_SUBSCRIPTION_LOST
callback
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.
arg
User data for callback
.
成功时返回 TRUE
, 或者在失败时返回 FALSE
。
Issues E_WARNING either with not valid callback function or with not valid signal.