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1

op_buy, op_buy_limit, op_buy_stop, what's the different and flow?

I just found out about op_buy_limit and op_buy_stop. In my current understanding op_buy_limit and op_buy_stop fall under pending order , but it is listed as position that I have when I iterated OrdersTotal(). So this make me confuse about mechanic behind it. If I want to find out, just opened

1

Is there any difference between MT4 and MT5 historical data?

While I do recognize, MT5 have superior backtest module but is there any difference between MT4 and MT5 historical data

6

Does socket work in tester?

I've been trying to test my socket connection using tester, as I will need it to communicate back and forth with Python. But it keep returning 4014. What I found in the documentation ( https://www.mql5.com/en/docs/network/socketconnect ), it cannot be called from an indicator, I've made it as an

1

Socket Programming syntax not recognize

I'm try to exchange data using socket. I try to follow the example from this documentation https://www.mql5.com/en/docs/network/socketconnect, but socket command are not recognized by MQL. Is there any include or something that I missed

2

Clarification for profit values in report

Can I ask for clarification what does profit calculate? Why are the value varies, when I hard code tp for 55 pip and sl for 45 pip? Why does there are 5 point different (55 -> 50 & 45 -> 50)

2

Backtesting keep throwing Order Send Error 130 / 138

I try to back test my expert advisor, but it keep sending error 130 / 138, very rarely it goes thru. I read somewhere that I can't use predetermined variable for backtest, I already try to change all the predetermined variable. Is something else piploss = pipgain = 0.03 double price = iClose (

1

ontick event and period

I've been reading mql4 documentation, but I still don't understand this well. If I set the period to one hour, does ontick event run every second as the name tick indicate or does ontick even run every hour as I set in the period? Sorry for the stupid question, I'm not really good at this

4

OrderSend error 138 only in tester, not in live demo

I've got OrderSend 138 only if I run it in tester, not in live demo. I've try to adjust slippage point to no avail. Anyone get any idea why this happen? double price = iClose ( Symbol (), PERIOD_H1 , 1 ); if (up > down && up > sideway){ double stoploss = NormalizeDouble (price-piploss* Point