mql5

In the previous article Developing a trading Expert Advisor from scratch (Part 16): Accessing data on the web (II), we talked about the problems and consequences of data capturing from the web. We also considered how to use it in an Expert Advisor and discussed three possible solutions each having their pros and cons. However, we have a new problem: the system of terminal's global variables only allows the use of the double type. Many do not know how to avoid this, and therefore they pass various information, such as a piece of text, through the channel provided by MetaTrader 5. In this article, we will discuss how to get around this limitation.

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• Developing a trading Expert Advisor from scratch (Part 17): Accessing data on the web (III)
• Developing a trading Expert Advisor from scratch (Part 16): Accessing data on the web (II)
• Developing a trading Expert Advisor from scratch (Part 15): Accessing data on the web (I)
• Developing a trading Expert Advisor from scratch (Part 14): Adding Volume At Price (II)
• Developing a trading Expert Advisor from scratch (Part 13): Time and Trade (II)
• Developing a trading Expert Advisor from scratch (Part 12): Times and Trade (I)
• Developing a trading Expert Advisor from scratch (Part 11): Cross order system
• Developing a trading Expert Advisor from scratch (Part 10): Accessing custom indicators
• Developing a trading Expert Advisor from scratch (Part 9): A conceptual leap (II)
• Developing a trading Expert Advisor from scratch (Part 8): A conceptual leap
• Developing a trading Expert Advisor from scratch (Part 7): Adding Volume at Price (I)
• Multiple indicators on one chart (Part 06): Turning MetaTrader 5 into a RAD system (II)
• Multiple indicators on one chart (Part 05): Turning MetaTrader 5 into a RAD system (I)
• Multiple indicators on one chart (Part 03): Developing definitions for users
• Multiple indicators on one chart (Part 04): Advancing to an Expert Advisor
• Multiple indicators on one chart (Part 02): First experiments

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