Calculate the historical equity, needs to know Mql4 lenguage

Need to Know Mql4 lenguage - Calculate the historical account equity, from current day 00.00 gmt/utc time, using the close of the previous M1 candles and the current open trades with the current account balance. ---------------------------------------- Need to know Mql4 lenguage, for the Metatrader 4 trading platform. ______________________ Description: A basket of 30 forex pairs, 15 Buy 15 Sell Calculate the historical account Equity, from 00.00 hours gmt/utc of the current day, using the close of the previous candles in M1 and the current open trades, with the current account balance, and keeping on doing the current balance, adjusting the Mt4 platform time, if it is + gmt or - gmt. if posible discount all the spreads.... Thank you very much Best wishes josep