Automating Trendline, Support, and Resistance Drawing in MQL5
Summary
The article describes using MQL5 to identify and draw trendlines, support, and resistance on a MetaTrader 5 chart. Its trendline examples connect recent price lows for an upward line and highs for a downward line, using copied price history and chart objects that can be deleted and redrawn as data change. It also discusses support and resistance as price levels that may guide decisions when price approaches them.
The proposed systems automate line updates and illustrate how chart data and object functions can be combined; the document describes buying near a tested upward line and selling near a tested downward line as possible interpretations. The approach is a basic programming example, not a validated trading method. The document cautions that line recognition is subjective and recommends testing before live use. It gives no measured results, and the described line logic does not establish that a level will hold or that a trade has favorable risk and reward.
Key ideas
- Trendlines are drawn by connecting successive lows in an uptrend or highs in a downtrend.
- MQL5 can copy chart prices and create, update, and remove line objects automatically.
- The article treats support and resistance as levels that may inform decisions near price tests.
- The proposed line-based systems are examples and do not demonstrate profitability.
- Line selection is subjective, so the approach requires testing and strategy-specific refinement.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.