As a newbie in OOP, I would like to ask a question about the object oriented structure of MQL5.
I'm reading the reference now and there is a section describing the standard library of MQL5.
But, none of the predefined functions described earlier in the reference are in the standard library.
And, we use these functions without an #include directive.
I would like to ask ... where these predefined functions (for example OrderSend, Print, Alert etc.) are in the object oriented structure of MQL5?
Ok, thanks ... I'm not an experienced programmer, I just have some background in C++.
In C++, there are also some predefined functions but we need to include a header for using them.
So, I thought that there also should be a file for built-in functions in MQL ... but we use them without including any file.
I would like to ask where the definitions of these built-in functions are in MQL?