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1

performance EA on one chart vs multi charts

Hi, I would like to know how mt4 process EA on each chart. If I have 2 charts and 1 EA by chart, is MT4 use mutli thread ? or use sequential and do chart by chart ? I would like to know if it's better to do only one EA on one chart that do calcul and send order for multi symbol or if it's better to

15

issue to pass string to dll C

Hi, To pass mql4 string to dll in C I see this articles: https://docs.mql4.com/basis/types/stringconst https://www.mql5.com/en/articles/1391 so in my dll I do this : struct MqlString { int size; // 32 bit integer, contains the size of the buffer allocated for the string LPWSTR