Quotes Monitoring (memory-mapped file)
This software component for MetaTrader 5 is built to enhance the capabilities of your trading environment. This Expert Advisor serves as automated trading software. It is utilized to monitor financial markets and execute trades based on predefined algorithmic rules, enabling precise position management without the need for constant manual oversight.
How to Setup and Use Quotes Monitoring (memory-mapped file)
1. Installation: Open the "File" menu, select "Open Data Folder," navigate to MQL/Experts, paste your file, and restart the terminal.
2. Activation: Drag the EA from the Navigator onto a chart, ensure "Allow live trading" is checked in the Common tab, and verify the AutoTrading button is green.
3. Optimization: Right-click your chart, choose "Expert List," click "Properties" to adjust inputs, and save your preferred setup as a set file for future use.
4. Maintenance: Regularly check the "Experts" tab in the terminal window to monitor trade logs and potential execution errors.
Frequently Asked Questions
Q: Why is my EA not opening trades? A: Check the "AutoTrading" button, ensure "Allow live trading" is enabled, and verify your broker allows automated trading on your account type.
Q: Can I run multiple EAs on one chart? A: No, each chart can only host one active EA; however, you can open multiple charts for different currency pairs to run several EAs.
Q: What does the "smiley face" icon mean? A: A smiley face in the top-right corner of the chart indicates the EA is successfully running; a frowny face means it is disabled.
Description & Settings
This Expert Advisor is example of use of the DLL for working with File Mapping functions.
In this example the Expert Advisor create a virtual (memory-mapped) file and start to update the quotes on symbol.
Using this way, Expert Advisors can exchange data (for example, quotes) using common memory-mapped file.
The format of the memory-mapped file is the same as used in . It means that you can exchange quotes between and .
The other data exchange can be organized using the similar way.
The code has a lot of comments and logs.
The MemMap32/64.dll library (see MemMap32/64.zip) must be placed to : terminal_data_folder\MQL5\Libraries
