(PECL gupnp >= 0.1.0)
gupnp_service_proxy_add_notify — Sets up callback for variable change notification
$proxy
, string $value
, int $type
, mixed $callback
[, mixed $arg
] ) : boolSets up callback to be called whenever a change notification for variable is recieved.
proxyA service proxy identifier.
valueThe variable to add notification for.
typeThe type of the variable. Type can be one of the following values:
GUPNP_TYPE_BOOLEANGUPNP_TYPE_INTGUPNP_TYPE_LONGGUPNP_TYPE_DOUBLEGUPNP_TYPE_FLOATGUPNP_TYPE_STRINGcallback
The callback to call when variable changes. Typically, callback function
takes on three parameters. The variable
parameter being the first, value parameter
being the second, and the arg is third.
arg
User data for callback.
成功时返回 TRUE， 或者在失败时返回 FALSE。