Job finished
Execution time 2 hours
The attached simple script (sTestComb.mq5) reads a txt file and uses this as a basis to update the "SYMBOL_FORMULA" for a custom symbol. The problem I have is the existing history is NOT updated.
The job is to create a script that will:
1. Read the attached GComb.txt file from the files directory and update the "SYMBOL_FORMULA" based on it.
Custom Symbol should be called "CombG", based on a FOREX major pair.
Custom Symbol should only be updated, not created from new.
2. Delete the old history and build a new history for the custom symbol based on the updated formula from the GComb.txt file.
Note1: Please ensure that event handling is covered in the script.
Note2: The same script will be run multiple times per day updating the same Custom symbol (CombG).
References:
https://www.mql5.com/en/articles/8226 (CUSTOM SYMBOLS: PRACTICAL BASICS)
https://www.mql5.com/en/code/18855 (Symbol - library for MetaTrader 5)
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