I have an .ex4 file (Expert Advisor). How can I decide it use MQL4 or MQL5 library?
Thank you in advance.
.ex4 = MT4
.ex5 = MT5
The Build 600+ Expert Advisor use MQL5 library too, doesn't it?
Anyway, I would like to check the .ex4 - it is Build 600+ or not.
Open your .ex4 with an editor. You can see the Copyright xxx on the first line if it's compiled with build <=509.
Also it seems build <=509 start with "EX4", build >=600 with "EX-".