Programming Patterns Observer script for MetaTrader 5

  • Subjects update observers through interface.
  • Subjects knows nothing about the observers (one-to-many weak relation).
  • New data can be broadcast by the subject, or requested by the observers (better).
  • Order of notification is not guaranteed.

RULE: Use weak connection between communicating objects.

Programming Patterns Observer script for MetaTrader 5

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Programming Patterns Observer script for MetaTrader 5

MT5 Forex Script Characteristics

Platform: Metatrader 5

Type: Script

Time frames: any.

How to install Screenshot Script in MetaTrader 5 / MT5:

Copy and paste the b_observer.mql5 files into the MQL5 Scripts folder of the Metatrader 4 trading platform.

Restart your MetaTrader 5 application (assuming it’s currently open) … or Launch your MetaTrader 4 application

You can access this folder from the top menu as follows:

File > Open Data Folder > MQL5 > Script (paste here)

On the left hand side, look for the “Navigator” window and under the “Common” tab, look into the “Scripts” section

Locate the indicator which you have just downloaded into the folder stated in Step 1

Drag (Click and drag) the Script onto the chart (when you want the task to be performed)

your task should now be executed…

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