MQL4 Reference Standard Constants, Enumerations and Structures Data Structures

Data Structures

MQL4 Language offers 8 predefined structures:

  • MqlDateTime is intended for working with date and time;
  • MqlRates is intended for manipulating the historical data, it contains information about the price, volume and spread;
  • MqlTick is designed for fast retrieval of the most requested information about current prices.