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How to Write an Expert Advisor or an Indicator
MQL4 Source Code Library for MetaTrader 4 - 102
The largest library features codes of free trading Expert Advisors, technical indicators and scripts. With the available applications you can trade in automated mode and analyze price dynamics. Use the library of codes to learn more about financial market sentiments.
Download free applications, test them and run in your MetaTrader 4. You can access them from the MetaTrader 4 platform and the MetaEditor development environment.
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Easy example working with object: object creation, modification properties, redraw chart.