MQL
MQL document
example.mq5

This is an example of how to use class CTest2.

//+------------------------------------------------------------------+
//| test1.mqh |
//| Copyright 2017, MetaQuotes Software Corp. |
//| https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2017, MetaQuotes Software Corp."
#property link "https://www.mql5.com"
#include <test.mqh>
void OnStart() {
CTest2* ts = nes CTest2();
delete ts;
}