A continuation for beginners on creating complex data types: structures, unions, and classes. Understanding these concepts helps in organizing data effectively and ensuring modular, maintainable code.

Structures group different types of data under one name, facilitating easier access and modification. They can even contain other structures for more intricate data management. Common predefined structures in MQL5 include MqlDateTime and MqlTradeRequest.

Unions allow storing variables of different types in the same memory location. Ideal for converting types, but restricted from containing strings or dynamic arrays.

Object-oriented programming, through classes, encapsulates data and functionalities, promoting reusability and reduced error occurrences. Classes restrict direct data access by making internal variables private, accessible only via pub...
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