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Wiring Buy and Sell Conditions into an MT4 EA Dashboard

Article MQL5 code base

Summary

This short MT4 expert-advisor note explains how Boolean buy and sell conditions can be passed into a Direction function. Its example checks whether Bollinger Band status indicates a valid green or red state, then uses those conditions to set the canBuy and canSell flags. The resulting signal is carried forward for trading, while labels and timestamps are added to dashboard arrays for display.

The note also says to enlarge the dashboard key and value arrays when adding more displayed lines. It is implementation guidance rather than a complete trading strategy: the example gives no entry validation beyond the indicator-state check, no exit logic, and no backtest or performance evidence. The surrounding page includes promotional and navigation material, but the substantive content is limited to this signal and dashboard wiring pattern.

Key ideas

  • Boolean conditions can feed a function that determines whether an EA may buy or sell.
  • The example uses green and red Bollinger Band states to form directional signals.
  • Dashboard arrays store labels and values such as signal status and time.
  • The dashboard arrays must be expanded if more display lines are added.
  • The note does not describe exits or provide evidence of trading performance.

Tags

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