the 1st thing:
How to record the account changes, for example, account profited then +1, account loss then -1. and calculation of 10 recent account changes value.
for example：
1.account profited +1
2.account profited +1
3.account profited +1
4.account loss -1
5.account profited +1
Returns: +3

1.account loss -1
2.account loss -1
3.account loss -1
4.account loss -1
5.account profited +1
Returns: -3


and there is next question:
IBar getBar(Instrument instrument,
Period period,
OfferSide side,
int shift)
throws JFException
how to use this Method to count highest price of the last 20 bars.

Or there is another way to get highest price of the last 20 bars.

Thanks

Account changes can be recorded as shown here: https://www.dukascopy.com/wiki/#Account_Info

Highest and lowest bar values can be calculated as shown here: https://www.dukascopy.com/wiki/#Indicator_catalog/MinMax

it's very useful,thanks