How to know if the user broker let a symbol?

[Lina]

Hi friends,

how can I know if a concret broker let me use a "symbol name?" how can I search if the symbol exist with mql?

Thanks!

[William Roeder]

Linash: how can I know if a concret broker let me use a "symbol name?" how can I search if the symbol exist with mql?

Concrete brokers will allow you to buy any type of concrete - Wikipedia I suggest you use a FOREX broker. I recommend Do not trade multiple currencies in one EA You can't use any predefined variables, can't use the tester, must poll (not OnTick,) and usually other problems, e.g A problem with iBarShift - MQL4 and MetaTrader 4 - MQL4 programming forum - Page 2 Code it to trade the chart pair only. Look at the others if you must. (Don't assume that Time[i] == iTime(otherPair,tf, i) always use iBarShift.) Then put it on other charts to trade the other pairs. Done. Perhaps you should read the manual. SymbolsTotal SymbolName

[nicholish en]

Linash:

Hi friends,

how can I know if a concret broker let me use a "symbol name?" how can I search if the symbol exist with mql?

Thanks!

bool SymbolExists(string symbol)
{
   if(SymbolInfoDouble(symbol,SYMBOL_BID)<=0)
      return false;
   else
      return true;
}