Ordersend for One Symbol while on chart for another??

I am trying to make Ordersend for EURUSD while on chart EURCHF is it possible

code looks like this

double LotsEU=0.2;

ticket1=OrderSend("EURUSD",OP_BUY,LotsEU,Ask,10,0,0,"Order BUY Placed",111,0,Green);

it returns error=0 but it does nothing, why????

Ask is only for the current chart - use MarketInfo to get the Ask for the euro.