Hello!

I need to get volumes of the bar on which order was opened after some time.
How it possible to realize?

I can get bar volumes by providing shift:

         IBar bar;
         bar = history.getBar(Symbol, Period, orderCmd, shift);  
         result=bar.getVolume();  

And I can get order ID by label.

Help me plz to create a function which returns bar volumes for bar on which order was opened providing just order label and period.

Thank You

Try something like this:

long time = history.getBarStart(Period.ONE_MIN, order.getCreationTime());
List<IBar> bar = history.getBars(order.getInstrument(), Period.ONE_MIN, OfferSide.BID, Filter.NO_FILTER, 1, time, 0);