Manual do PHP
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# com_event_sink

(PHP 4 >= 4.2.3, PHP 5)

com_event_sink -- Connect events from a COM object to a PHP object

## Description

bool com_event_sink ( object comobject, object sinkobject [, mixed sinkinterface])

Instructs COM to sink events generated by comobject into the PHP object sinkobject. PHP will attempt to use the default dispinterface type specified by the typelibrary associated with comobject, but you may override this choice by setting sinkinterface to the name of the dispinterface that you want to use.

sinkobject should be an instance of a class with methods named after those of the desired dispinterface; you may use com_print_typeinfo() to help generate a template class for this purpose.

Be careful how you use this feature; if you are doing something similar to the example below, then it doesn't really make sense to run it in a web server context.

Exemplo 1. COM event sink example
`<?php class IEEventSinker { var $terminated = false; function ProgressChange($progress, $progressmax) { echo "Download progress: $progress / $progressmax\n"; } function DocumentComplete(&$dom, $url) { echo "Document $url complete\n"; } function OnQuit() { echo "Quit!\n"; $this->terminated = true; } } $ie = new COM("InternetExplorer.Application"); // note that you don't need the & for PHP 5! $sink =& new IEEventSinker(); com_event_sink($ie, $sink, "DWebBrowserEvents2"); $ie->Visible = true; $ie->Navigate("http://www.php.net"); while(!$sink->terminated) { com_message_pump(4000); } $ie = null; ?>`

See also com_print_typeinfo(), com_message_pump().

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