Please see: https://www.mql5.com/en/articles/81

Migrating from MQL4 to MQL5
- 2010.05.17
- Sergey Pavlov
- www.mql5.com
This article is a quick guide to MQL4 language functions, it will help you to migrate your programs from MQL4 to MQL5. For each MQL4 function (except trading functions) the description and MQL5 implementation are presented, it allows you to reduce the conversion time significantly. For convenience, the MQL4 functions are divided into groups, similar to MQL4 Reference.
bigfatgreedykat: Any help or ideas or a nudge in the right direction, please
№ 3. Predefined Variables
Migrating from MQL4 to MQL5 - MQL5 Articles
You are missing trading opportunities:
- Free trading apps
- Over 8,000 signals for copying
- Economic news for exploring financial markets
Registration
Log in
You agree to website policy and terms of use
If you do not have an account, please register
Hi
In MT4 i can use High[1] but in MT5 my scripts don't like High[1]
Any help or ideas or a nudge in the right direction, please
I did search through documentation but still have found anything on 'Candles'
Look forward to any replies.
regards
Jai