Displaying Trading Positions on Charts with an MQL5 Indicator

Summary

This article introduces a position-view component for a MetaTrader 5 replay and simulation system. The broader system supports chart interaction and order placement, including cross-orders for symbols other than the displayed chart. Because the platform’s usual visual cues may not show activity on an off-chart symbol or a simulated instrument, the proposed component displays position price lines on the chart.

The initial implementation is deliberately limited: it starts with showing one open position and does not yet handle multiple positions, pending orders, or ongoing updates when stop-loss or take-profit prices change. The author chooses an indicator rather than an expert advisor and explains that indicators share an execution thread, so poorly designed indicator code can impair chart responsiveness. The article also emphasizes careful control of chart objects and event priorities to avoid misdirected interactions, especially when managing multiple positions. The supplied excerpt describes the motivation and design constraints, but omits much of the code and the later implementation details.

Key ideas

• A chart position display can help users monitor cross-orders and simulated instruments that lack normal platform visual cues.
• The first version focuses on price lines for a single open position.
• The initial indicator does not refresh when position stop-loss or take-profit levels change.
• Indicators share a chart execution thread, so unresponsive code can affect other indicators and chart behavior.
• Object naming, overlap, and event priority require careful handling to reduce incorrect order interactions.

Tags

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