MQL4 question: CLOSE ORDER BY THE OTHER ONE

[Piotr]

What is MQL4 syntax to close one BUY order by the other one SELL order ?
I manage orders by Magic Numbers ...

[[Deleted]]

puncher:
What is MQL4 syntax to close one BUY order by the other one SELL order ?
I manage orders by Magic Numbers ...

https://c.mql5.com/mql4/book/mq4/scripts/closeby.mq4

this example may give you an idea.

[gordon]

puncher:
I manage orders by Magic Numbers ...

If the orders that are 'Closed By' have different lot sizes, a new order would be formed with a completely different ticket number, but it will have the same magic number as the order with the larger lot size.