How to NOT to run EA on certain symbol.

[Forexalpha777]

Dear all.

How do I code if I don't want to make EA run on certain symbol?

I took the code from other topic.

Thanks in advanced.

int OnInit()

{
   // Check Licensing Restrictions
   if( boolRestrictOnInit() ) return( INIT_FAILED );

   // ...

   return( INIT_SUCCEEDED );  // Initialisation complete
}

void OnDeinit(const int reason){
ObjectDelete(NULL,"close_all");
   }

void OnTimer(){
   onTimer();
   }

void OnTick()
{

   if(IsTesting())
      
      (onTimer()) return;
      
   // Check Licensing Restrictions
   if( boolRestrictOnTick() ) return;
   
   /// ..
}

//+------------------------------------------------------------------------------------+
// Function to Test Restrictions during Initialisation
//+------------------------------------------------------------------------------------+
bool boolRestrictOnInit()
{
   boolRestrictions =
      boolRestrictAccountNumber  ||
      boolRestrictSymbols

   if( boolRestrictions )
   {
      boolRestrictionsUnverified = true;

      if( (bool) TerminalInfoInteger( TERMINAL_CONNECTED ) )
      {
         long longAccountNumber = AccountInfoInteger( ACCOUNT_LOGIN );
         if( longAccountNumber > 0 )
         {
            if( boolRestrictAccountNumber )
               { if( longAccountNumber                        != longRestrictAccountNumber )
                  { return( boolRestrictAlert() ); } }
            if( boolRestrictSymbols() )
               { return( boolRestrictAlert() ); }

            boolRestrictionsUnverified = false;
         }
      }
   }
   return( false );
}
//+------------------------------------------------------------------------------------+
// Function to Test Variations of Restricted Symbols
//+------------------------------------------------------------------------------------+
bool boolRestrictSymbols()
{
   if( boolRestrictSymbols )
   {
      int intSymbolCount = ArraySize( strRestrictSymbols );
      if( intSymbolCount == 0 ) return( false );
      for( int i = 0; i < intSymbolCount; i++ )
      {
         if( StringFind( _Symbol, strRestrictSymbols[i] ) != WRONG_VALUE ) return( false );
         int
            intLen  = StringLen( strRestrictSymbols[i] ),
            intHalf = intLen / 2;
         string
            strLeft  = StringSubstr( strRestrictSymbols[i], 0, intHalf ),
            strRight = StringSubstr( strRestrictSymbols[i], intHalf, intLen - intHalf );
         if( ( StringFind( _Symbol, strLeft  ) != WRONG_VALUE ) &&
             ( StringFind( _Symbol, strRight ) != WRONG_VALUE )    )
            return( false );
      }
      return( true );
   }
   return( false );
}
//+------------------------------------------------------------------------------------+
// Function to Test Expiration during Tick Events
//+------------------------------------------------------------------------------------+
bool boolRestrictOnTick()
{
   if( boolRestrictions )
   {
      if( boolRestrictionsUnverified )
         return( boolRestrictOnInit() );
      if( boolRestrictExpiration && ( TimeCurrent() >= dtRestrictExpiration ) )
         return( boolRestrictAlert()  );
   }
   return( false );
}
// Function to Alert User of Licensing Restrictions and Remove Code from Execution
bool boolRestrictAlert()
{
   if( boolRestrictAlert )
      MessageBox( strRestrictAlertMessage, strRestrictAlertCaption, MB_ICONERROR );
   ExpertRemove();
   return( true );
}
//+------------------------------------------------------------------------------------+
//      Variables for Handling of Licensing Restrictions
//+------------------------------------------------------------------------------------+
bool
   boolRestrictAccountNumber  = true, // Set to true for Restricting by Account Number
   boolRestrictSymbols        = true, // Set to true, to only allow certain Symbols
   boolRestrictAlert          = true,  // Display Alert Message when Restrictions apply
   boolRestrictionsUnverified = false, // DO NOT CHANGE. For internal use only!
   boolRestrictions           = false; // DO NOT CHANGE. For internal use only!
long
   longRestrictAccountNumber  = 123456789;      // Restricted by Account Number
string
   
   strRestrictSymbols[]       = { "EURJPY", "EURJPY.r", "GBPJPY" }, // Restricted Symbols
   strRestrictAlertCaption    = "Restrictions", // Alert Message Box Caption
   strRestrictAlertMessage    =
      "ATTENTION! Due to Licensing Restrictions, code execution has been blocked!";
      // Message to be used when Restrictions have been detected
//+------------------------------------------------------------------------------------+

[Forexalpha777]

Forexalpha777:

Dear all.

How do I code if I don't want to make EA run on certain symbol?

I took the code from other topic.

Thanks in advanced.

Figure it  out!

[William Roeder]

Do not post code that will not even compile.

   boolRestrictions =
      boolRestrictAccountNumber  ||
      boolRestrictSymbols

The latter is a function.

[Khuman Bakhramirad]

Before opening an order just write this:

if(_Symbol != "EURUSD")

And this "if" makes sure that the symbol isn't  EURUSD

[Pak Hong Poon]

what is this function for though? you can simply choose not to run the EA in that particular chart?

[Forexalpha777]

Thanks to all

[Jeremie Courchesne]

You may also want to une the StringSubstr() Function to Filter out broker added Letters to different Pairs/Symbols. (Ex: EURUSDecn could be reduced to EURUSD)