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How to reliably export historical data from MT4 using MQL4 from the iOpen, iHigh, etc arrays?

Currently, I am exporting all the historical data stored in MT4 into a script by reading off the data stored in the iOpen, iHigh, iLow, iClose, and iVolume arrays. The problem I have is that it may be the case that the current period's data (which is already available) is not written for some

Where does history center store its files?

Where does History Center store its records? I tried deleting some files in the history folder say USDCHF1440.hst, close and reopen MT4 but the history center still has the records in it. What I am trying to accomplish is to write a script that I intend to run at the start of the week that will

Is it possible to create an Alert that is triggered at a certain date or after number of days?

Hi, In the "Alert Editor", there is a condition called "Time=" and the format is "hh:mm". I was wondering if this means it can only trigger alerts within the next 24 hours or is it possible to set it to trigger say, 3 days from now at 1am? Thank you in advance for any help provided. By the way, I am