QuickBooks/Driver.php
final public function queueLeft($user, $queued = true)
	{
		$hookdata = array(
			'username' => $user,
			'queued' => $queued,  
			);
		$hookerr = '';
		$this->_callHook(QUICKBOOKS_DRIVER_HOOK_QUEUELEFT, null, $hookerr, $hookdata);
		
		return $this->_queueLeft($user, $queued);
	}
final public function queueLeft($user, $queued = true)
	{
		$hookdata = array(
			'username' => $user,
			'queued' => $queued,  
			);
		$hookerr = '';
		$this->_callHook(QUICKBOOKS_DRIVER_HOOK_QUEUELEFT, null, $hookerr, $hookdata);
		
		return $this->_queueLeft($user, $queued);
	}
Tell the number of queued items left in the queue for a given user

@param string $user
@param boolean $queued
@return integer