php man page for gupnp_control_point_callback_set

GUPNP_CONTROL_POINT_CALLBACK_SET(3)					 1				       GUPNP_CONTROL_POINT_CALLBACK_SET(3)

gupnp_control_point_callback_set - Set control point callback

SYNOPSIS
       bool gupnp_control_point_callback_set (resource	$cpoint, int  $signal, mixed  $callback, [mixed  $arg])

DESCRIPTION
	Set control point callback function for signal.

PARAMETERS
	      o $cpoint
		- A control point identifier, returned by gupnp_control_point_new(3).

	      o $signal
		- The value of signal. Signal can be one of the following values:

		     o GUPNP_SIGNAL_DEVICE_PROXY_AVAILABLE - Emitted whenever a new device has become available.

		     o GUPNP_SIGNAL_DEVICE_PROXY_UNAVAILABLE - Emitted whenever a device is not available any more.

		     o GUPNP_SIGNAL_SERVICE_PROXY_AVAILABLE - Emitted whenever a new service has become available.

		     o GUPNP_SIGNAL_SERVICE_PROXY_UNAVAILABLE - Emitted whenever a service is not available any more.

	      o $callback
		- The callback function for the certain signal. Typically, callback function takes on two parameters. The $proxy parameter's iden-
		tifier being the first, and the $arg second.

	      o $arg
		- User data for $callback.

RETURN VALUES
	Returns TRUE on success or FALSE on failure.

EXAMPLES
       Example #1

	      Create new UPnP context and start browsing

	      <?php

	      function device_proxy_available_cb($proxy, $arg)
	      {
		  $info = gupnp_device_info_get($proxy);

		  $type = $info['device_type'];
		  $location = $info['location'];

		  printf("Device available:
");
		  printf("type:     %s
", $type);
		  printf("location: %s
", $location);
	      }

	      /* Create the UPnP context */
	      $context = gupnp_context_new();

	      if (!$context) {
	       die("Error creating the GUPnP context
");
	      }

	      /* We're interested in everything */
	      $cp = gupnp_control_point_new($context, "ssdp:all");

	      gupnp_control_point_callback_set($cp,
		  GUPNP_SIGNAL_DEVICE_PROXY_AVAILABLE, 'device_proxy_available_cb');

	      /* Start for browsing */
	      gupnp_control_point_browse_start($cp);

	      ?>

ERRORS
/EXCEPTIONS
	Issues E_WARNING with not valid callback function.

SEE ALSO
       gupnp_control_point_new(3), gupnp_control_point_browse_start(3).

PHP Documentation Group 										       GUPNP_CONTROL_POINT_CALLBACK_SET(3)