Best Way To Code EA To Communicate Across Multiple Pairs? | Forex Factory

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Best Way To Code EA To Communicate Across Multiple Pairs?

  • #1
  • First Post: Dec 1, 2016 6:38pm Dec 1, 2016 6:38pm
If my EA opens a trade on EURUSD, I want to tell the GBPUSD instance of the EA open a trade as well, what is the best way of doing this? Any examples would be greatly I appreciated. I am trying with GlobalVariables and while it kind of works, it doesn't seem to be offering the Flexibility I want.
  • #2
  • Dec 1, 2016 7:59pm Dec 1, 2016 7:59pm
I have used Global variables for something similar successfully and it would be my preference again. I don't know why there seems to be a stigma attached to them; imagine trying to use files for the same purpose.
  • #3
  • Dec 1, 2016 8:10pm Dec 1, 2016 8:10pm
Quoting kinitex
If my EA opens a trade on EURUSD, I want to tell the GBPUSD instance of the EA open a trade as well, what is the best way of doing this? Any examples would be greatly I appreciated. I am trying with GlobalVariables and while it kind of works, it doesn't seem to be offering the Flexibility I want.
The best way would be to code the EA to open both EURUSD and GBPUSD trades at the same time from the current chart.
MT4/MT5 EAs/Indicators/Alerts coder
  • #4
  • Dec 1, 2016 8:35pm Dec 1, 2016 8:35pm
Quoting FerruFx
{quote} The best way would be to code the EA to open both EURUSD and GBPUSD trades at the same time from the current chart.
What about on brokers that use weird symbol names like EURUSDecn, how would you make this universal instead of just putting in an OrderSend("EURUSDecn"?
  • #5
  • Dec 1, 2016 9:30pm Dec 1, 2016 9:30pm
Quoting kinitex
{quote} What about on brokers that use weird symbol names like EURUSDecn, how would you make this universal instead of just putting in an OrderSend("EURUSDecn"?
Yes exact:

The order for the current chart pair can still use OrderSend(_Symbol,...);

The order for any other pair must use OrderSend("GBPUSDecn",...);
MT4/MT5 EAs/Indicators/Alerts coder
  • #6
  • Dec 1, 2016 11:01pm Dec 1, 2016 11:01pm
Remember that if you are placing trades on other symbols, you have to get the Bid/Ask price for that symbol
Inserted Code
   double S_ask=SymbolInfoDouble("GBPUSDecn",SYMBOL_ASK);
   double S_bid=SymbolInfoDouble("GBPUSDecn",SYMBOL_BID);
Please Do Not PM Me With Coding Enquiries
  • #7
  • Last Post: Dec 4, 2016 7:51am Dec 4, 2016 7:51am
Quoting kinitex
If my EA opens a trade on EURUSD, I want to tell the GBPUSD instance of the EA open a trade as well, what is the best way of doing this?
Naturally one would generate an event and use an event handler. The function EventChartCustom() will do. Combined with a broadcast event function. And the event handler OnChartEvent().
For an example see (code is at end of page):
https://docs.mql4.com/eventfunctions/eventchartcustom
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