MT4 Library

[Samih Abdelli]

hello

my latest research require other pairs data for the calculation of the current pair, I wrote some code but my script are slow and sometimes freezes the MT4.

is there any library that can solve my problem?

I know MT5 is the right solution, but my broker is still on MT4

[William Roeder]

On MT4: Unless the current chart is the specific pair/TF referenced, you must handle 4066/4073 errors.
          Download history in MQL4 EA - MQL4 and MetaTrader 4 - MQL4 programming forum

On MT5: Unless the chart is that specific pair/TF, you must Synchronize the terminal Data from the Server.
          Timeseries and Indicators Access /  Data Access - Reference on algorithmic/automated trading language for MetaTrader 5

[Samih Abdelli]

Hello whreeder1 

I went by that topic many times, but now I understand it and its working good for me

thank you so much