Is it possible to run multiple currency pairs in the same account at the same time?
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Magic number only allows an EA to identify its
trades from all others. Using OrdersTotal/OrdersHistoryTotal (MT4) or PositionsTotal (MT5), directly
and/or no Magic number filtering on your OrderSelect / Position select loop means your code is incompatible with every
EA (including itself on other charts and manual trading.)
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I tried bringing up multiple charts in the same platform but since OrderSelect() does not use a MagicNumber, when it is true for one pair, it is true for all pairs, so I tried the following:
You can certainly manage multiple pairs on one account, you just need to identify the trades from the trades list.
If you're running the EA on different charts, for example, you would loop through the trades list to find trades with the chart symbol and your EAs magic number - this example assumes no pending orders etc...
for(int i=OrdersTotal()-1;i>=0;i--) if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES)) if(OrderSymbol()==_Symbol&&OrderMagicNumber()==mymagicnumber){ // do something }
But if you're looking at several pairs and periods, it would make sense to run the EA on one chart only, and then programatically look up the other pairs....but that's probably another subject.....
andrew:
- this example assumes no pending orders etc...
Why would you assume that there are no pending orders?
You would just add a check
if(OrderType()==OP_BUY)
{
}
etc.
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I tried bringing up multiple charts in the same platform but since OrderSelect() does not use a MagicNumber, when it is true for one pair, it is true for all pairs, so I tried the following:
for(int i = 0; i<2; i++)
switch (i)
{
case 0:
{
ChartClose(0);
ChartOpen("EURUSD", 240);
MAGICMA = GetMagicNumber(); // MagicNumber based on symbol and period
if(CalculateCurrentOrders(Symbol()) == 0) CheckForOpen();
else CheckForClose();
break;
}
case 1:
{
ChartClose(0);
ChartOpen("CADJPY", 240);
MAGICMA = GetMagicNumber(); // MagicNumber based on symbol and period
if(CalculateCurrentOrders(Symbol()) == 0) CheckForOpen();
else CheckForClose();
break;
}
}