printer_open() documentation error

Hi I'm not sure if this is a documentation error or a bug in php_printer.dll but here goes... printer_open() is returning NULL upon failure, not FALSE i.e. the following code doesn't work: <?php $printer = "\\\\greg-mac\\LaserJet_5"; if(($conn_printer = printer_open($printer)) === FALSE) die("Could not connect to $printer\r\n"); var_dump($conn_printer); printer_close($conn_printer); ?> This does: <?php $printer = "\\\\greg-mac\\LaserJet_5"; if(($conn_printer = printer_open($printer)) === NULL) die("Could not connect to $printer\r\n"); var_dump($conn_printer); printer_close($conn_printer); ?> Version info: PHP 4.3.10 (cli) (built: Dec 14 2004 17:48:04) php_printer.dll 29-Mar-2005 16:28 40k Best regards, Greg Jackson Web Administrator Active Components (NZ) Ltd PO Box 100-544, Auckland New Zealand DDI: +64-9-443 9519 Sales: +64-9-443 9500 Fax: +64-9-443 9502 http://www.activecomponents.com/