On MT4: Unless the current chart is that specific symbol(s)/TF(s) referenced, you must handle 4066/4073 errors before accessing candle/indicator values.
Download history in MQL4 EA - MQL4 programming forum - Page 3 #26.4 (2019)
William Roeder #:
Thank you for help. :-)
Sur MT4 : à moins que le graphique actuel ne soit ce ou ces symboles/TF spécifiques référencés, vous devez gérer les erreurs 4066/4073 avant d' accéder aux valeurs des bougies/indicateurs.
Historique des téléchargements dans MQL4 EA - Forum de programmation MQL4 - Page 3 #26.4 (20 19 )
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Hi sirs,
Updating my Old EA, that return me this message (4066 requested history data in update state ...... F07A.TRAFFICTime F04-FBug->Error# : 4066 ), the fonction was :
Somebody could have an answer for that ?
Thank's in advance for your help :-) ,
Daniel