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Downloading Quote History for the Current Symbol and Timeframe

Article MQL5 code base
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Summary

This MetaTrader Expert Advisor extends the chart’s quote history for its current symbol and timeframe up to a specified date. The described interaction uses the Home key to shift the chart backward; the EA repeats this process while monitoring chart updates. Unlike the referenced downloader, it focuses on the currently selected timeframe, which the author says suits single-timeframe testing.

The EA runs in a single start iteration and relies on an accompanying indicator to publish chart-bar information through platform global variables. The document outlines setup steps, including configuring history limits, choosing a symbol and timeframe, disabling auto-scroll, zooming out, and starting the indicator before the EA. It gives implementation context and operating parameters, but no test results or evidence that downloaded history is complete or reliable across platform configurations.

Key ideas

  • The EA downloads historical quotes for the chart’s current symbol and timeframe up to a chosen date.
  • It shifts the chart backward using the Home key and waits for chart updates.
  • An accompanying indicator supplies bar count and first-bar time through global variables.
  • The instructions require configuring chart history limits and starting the indicator before the EA.
  • The document provides no validation of data completeness or behavior across different platform setups.

Tags

BacktestingFutures

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.