Expert Advisor Programming by Andrew R. Young

EXPERT ADVISOR PROGRAMMING
double PipsProfit = MarketInfo(argSymbol,MODE_BID) - OrderOpenPrice();
double MinProfit = argMinProfit * PipPoint(argSymbol);
// Modify Stop
if(OrderMagicNumber() == argMagicNumber && OrderSymbol() == argSymbol
&& OrderType() == OP_BUY && CurrentStop < MaxStopLoss
&& PipsProfit >= MinProfit)
{
bool Trailed = OrderModify(OrderTicket(),OrderOpenPrice(),MaxStopLoss,
OrderTakeProfit(),0);
// Error Handling
if(Trailed == false)
{
int ErrorCode = GetLastError();
string ErrDesc = ErrorDescription(ErrorCode);
string ErrAlert = StringConcatenate("Buy Trailing Stop – Error ",
",ErrorCode,": ",ErrDesc);
Alert(ErrAlert);
}
}
}
}
string ErrLog = StringConcatenate("Bid: ",
MarketInfo(argSymbol,MODE_BID), " Ticket: ",OrderTicket()," Stop: ",
OrderStopLoss()," Trail: ",MaxStopLoss);
Print(ErrLog);
void SellTrailingStop(string argSymbol, int argTrailingStop, int argMinProfit,
int argMagicNumber)
{
for(int Counter = 0; Counter