Ciao a tutti ragazzi.
Ho un problema che mi stò trascinando da giorni ma senza risultati.
Ho qualche infarinatura circa il linguaggio C++ ma evidentemente non è sufficiente per impostare l'expert affinchè applichi un take profit all'apertura di ciascuno scambio. Le ho provate in tutti i modi e anche se a volte non mi dava errori in fase di compilazione l'expert era come bloccato come se ci fosse un conflitto.
Se qualcuno di voi sa già dove metter mano vi prego, aiutatami, ho il cervello in fumo.........

Di seguito vi riporto il programma base:

#define MAGICMA 20050610

extern double Lots = 0.1;
extern double MaximumRisk = 0.02;
extern double DecreaseFactor = 3;
extern double MovingPeriod = 12;
extern double MovingShift = 6;
//+------------------------------------------------------------------+
//| Calculate open positions |
//+------------------------------------------------------------------+
int CalculateCurrentOrders(string symbol)
{
int buys=0,sells=0;
//----
for(int i=0;i<OrdersTotal();i++)
{
if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES)==false) break;
if(OrderSymbol()==Symbol() && OrderMagicNumber()==MAGICMA)
{
if(OrderType()==OP_BUY) buys++;
if(OrderType()==OP_SELL) sells++;
}
}
//---- return orders volume
if(buys>0) return(buys);
else return(-sells);
}
//+------------------------------------------------------------------+
//| Calculate optimal lot size |
//+------------------------------------------------------------------+
double LotsOptimized()
{
double lot=Lots;
int orders=HistoryTotal(); // history orders total
int losses=0; // number of losses orders without a break
//---- select lot size
lot=NormalizeDouble(AccountFreeMargin()*MaximumRisk/1000.0,1);
//---- calcuulate number of losses orders without a break
if(DecreaseFactor>0)
{
for(int i=orders-1;i>=0;i--)
{
if(OrderSelect(i,SELECT_BY_POS,MODE_HISTORY)==false) { Print("Error in history!"); break; }
if(OrderSymbol()!=Symbol() || OrderType()>OP_SELL) continue;
//----
if(OrderProfit()>0) break;
if(OrderProfit()<0) losses++;
}
if(losses>1) lot=NormalizeDouble(lot-lot*losses/DecreaseFactor,1);
}
//---- return lot size
if(lot<0.1) lot=0.1;
return(lot);
}
//+------------------------------------------------------------------+
//| Check for open order conditions |
//+------------------------------------------------------------------+
void CheckForOpen()
{
double ma;
int res;
//---- go trading only for first tiks of new bar
if(Volume[0]>1) return;
//---- get Moving Average
ma=iMA(NULL,0,MovingPeriod,MovingShift,MODE_SMA,PRICE_CLOSE,0);
//---- sell conditions
if(Open[1]>ma && Close[1]<ma)
{
res=OrderSend(Symbol(),OP_SELL,LotsOptimized(),Bid,3,0,0,"",MAGICMA,0,Red);
return;
}
//---- buy conditions
if(Open[1]<ma && Close[1]>ma)
{
res=OrderSend(Symbol(),OP_BUY,LotsOptimized(),Ask,3,0,0,"",MAGICMA,0,Blue);
return;
}
//----
}
//+------------------------------------------------------------------+
//| Check for close order conditions |
//+------------------------------------------------------------------+
void CheckForClose()
{
double ma;
//---- go trading only for first tiks of new bar
if(Volume[0]>1) return;
//---- get Moving Average
ma=iMA(NULL,0,MovingPeriod,MovingShift,MODE_SMA,PRICE_CLOSE,0);
//----
for(int i=0;i<OrdersTotal();i++)
{
if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES)==false) break;
if(OrderMagicNumber()!=MAGICMA || OrderSymbol()!=Symbol()) continue;
//---- check order type
if(OrderType()==OP_BUY)
{
if(Open[1]>ma && Close[1]<ma) OrderClose(OrderTicket(),OrderLots(),Bid,3,White);
break;
}
if(OrderType()==OP_SELL)
{
if(Open[1]<ma && Close[1]>ma) OrderClose(OrderTicket(),OrderLots(),Ask,3,White);
break;
}
}
//----
}
//+------------------------------------------------------------------+
//| Start function |
//+------------------------------------------------------------------+
void start()
{
//---- check for history and trading
if(Bars<100 || IsTradeAllowed()==false) return;
//---- calculate open orders by current symbol
if(CalculateCurrentOrders(Symbol())==0) CheckForOpen();
else CheckForClose();
//----
}
//+------------------------------------------------------------------+