How to determine if a selected trade is closed?

 
Hi,
Is there a simple way to detect if a selected trade is closed, whithout looping through the MODE_HISTORY pool?
What would the OrderClosePrice() and OrderCloseTime() functions return for trades that are still open?
Regards,
Levente
 
OrderCloseTime() will return 0. See "MQL4: OrderCloseTime"