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Warning in MT4 code

  • #1
  • First Post: Mar 30, 2021 6:26am Mar 30, 2021 6:26am
Can someone point out to me the reason that I get a warning at line 46?
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  • #2
  • Mar 30, 2021 7:02am Mar 30, 2021 7:02am
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  • #3
  • Mar 30, 2021 7:31am Mar 30, 2021 7:31am
  •  FerruFx
  • Joined May 2007 | Status: MT4/MT5 EAs/Indicators/Alerts coder | 6,542 Posts | Online Now
Quoting MichaelMano
Can someone point out to me the reason that I get a warning at line 46? {image}
Should be something like this:

Inserted Code
int ticket = OrderSend(...);
MT4/MT5 EAs/Indicators/Alerts coder
  • #4
  • Mar 30, 2021 7:43am Mar 30, 2021 7:43am
Quoting FerruFx
{quote} Should be something like this: int ticket = OrderSend(...);
Yes the warning has disappeared, but would you help me understand why I should assign the OrderSend function to an int variable so I wont get this warning? as I did not get the same warning for OrdersTotal() and I want to know the difference between OrderSend () and OrdersTotal() for instance, as why OrderSend() should be assigned to int variable while OrdersTotal () worked fine without assign it to any kind of variables?

Thank you
  • #5
  • Mar 30, 2021 7:50am Mar 30, 2021 7:50am
  •  FerruFx
  • Joined May 2007 | Status: MT4/MT5 EAs/Indicators/Alerts coder | 6,542 Posts | Online Now
Quoting MichaelMano
{quote} Yes the warning has disappeared, but would you help me understand why I should assign the OrderSend function to an int variable so I wont get this warning? as I did not get the same warning for OrdersTotal() and I want to know the difference between OrderSend () and OrdersTotal() for instance, as why OrderSend() should be assigned to int variable while OrdersTotal () worked fine without assign it to any kind of variables? Thank you
You're using them differently.

Try to put the OrdersTotal(); alone like you did with ordersend, you will get the same warning.

And the opposite is also true ... try to put the OrderSend() in a conditional if(OrderSend(...) > 0) ... you won't get the warning.
MT4/MT5 EAs/Indicators/Alerts coder
  • #6
  • Mar 30, 2021 9:18am Mar 30, 2021 9:18am
Michael, read what the actual warning says....

Ordersend returns the ticket number when the trade is executed or -1 if it fails. You really should check if your trade was successful or not(by assigning it to a variable). MQL recognizes this and doesn't force you to do it but suggests it as a good idea. You will get the same type of error if you don't inspect the return code of an OrderSelect statement
  • #7
  • Last Post: Mar 30, 2021 1:28pm Mar 30, 2021 1:28pm
thanks you so much
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