The previous analysis highlighted several key issues affecting the performance of the replay/simulation service for MetaTrader 5 using MQL5. The primary concerns centered around the handling and optimization of graphical objects, particularly the OBJ_BITMAP_LABEL and the control indicator module's interaction.

To address these challenges, the initial strategy involved implementing minor yet necessary code changes aimed at improving readability and achieving basic performance enhancements. These included refining the naming conventions and restructuring object access mechanics. The objective was to facilitate easier debugging and maintenance while providing slight enhancements in efficiency.

Further groundwork was laid in understanding the integration between different components of the simulation service. The service was adjusted to read data directly from ...

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Modifying the mouse indicator to receive order book events is essential when using replay systems in simulation applications. Understanding previous modifications is key for following current content. Integration of order book events allows improved usage of the OnCalculate function through iSpread data retrieval in MetaTrader 5.

In transitioning code from a test service to a replay/simulation service, attention must be given to proper loading sequences for modules. It is important to handle control indicators before the mouse indicator for effective execution. With order book messages, initializing appropriate variables and constants in the class constructor can ensure auction states display correctly, enhancing the visual accuracy of mouse indicators.

Handling time gaps requires careful event management to prevent flickering effects and ensure seamle...

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The development of the replay/simulator system has reached its third phase, focusing now on integration with live trading servers. This stage involves creating tools for opening, managing, and closing market positions. These tools will be designed using MQL5 to adhere strictly to the simulation environment's constraints.

A new tool, Chart Trade, will function as an indicator, communicating with an Expert Advisor to execute trades. This setup replicates MetaTrader 5’s functionality without directly connecting to a real server, maintaining the challenge and integrity of using pure MQL5. Key updates involve the transition from using internal buffers to event-driven custom interactions for seamless execution within the simulated environment.

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