Modify_v1

//+------------------------------------------------------------------+
//|                                                       MODIFY.mq4 |
//|                                  Copyright © 2006, Shadow Trader |
//|                                  mailto:ShadowDragon_Fil@mail.ru |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, Shadow Trader"
#property link      "http://forum.alpari-idc.ru/thread32559.html"
#property show_inputs

#include <stdlib.mqh>

extern double Take_Profit  = 0;
extern double Stop_Loss    = 0;
extern string Order_Type   = "BUY";
extern string Order_Symbol = "EURUSD";

int start()
{
   int type = 0;
   if      (Order_Type ==        "BUY") type = OP_BUY;
   else if (Order_Type ==       "SELL") type = OP_SELL;
   else if (Order_Type ==  "BUY LIMIT") type = OP_BUYLIMIT;
   else if (Order_Type == "SELL LIMIT") type = OP_SELLLIMIT;
   else if (Order_Type ==   "BUY STOP") type = OP_BUYSTOP;
   else if (Order_Type ==  "SELL STOP") type = OP_SELLSTOP;
   else 
   {
      Alert("Íå âåðíî çàäàí òèï îðäåðà: " + Order_Type);
      return (0);
   }
   
   if (!IsConnected())    { Alert("Îòñóòñòâóåò ñâÿçü ñ ñåðâåðîì!"); return (0); }
   if (!IsTradeAllowed()) { Alert("Òîðãîâëÿ çàïðåùåíà!"); return (0); }

   bool find = false;
   // ïîèñê îðäåðà
   for (int i = 0; i <= OrdersTotal(); i++)
   {
		if((OrderSelect(i, SELECT_BY_POS, MODE_TRADES )) &&
		   (OrderSymbol() == Order_Symbol) &&
		   (OrderType  () == type))
		if ( OrderSymbol() == Symbol() )
		{
		   int j = 0;
		   while (!OrderModify(OrderTicket(), 
                             OrderOpenPrice(), 
                             NormalizeDouble(Take_Profit, Digits), 
                             NormalizeDouble(Stop_Loss,   Digits), 
                             OrderExpiration(), 
                             CLR_NONE))
         {
            int error = GetLastError();
	         if (error > 0)
	         {
               Print("Îøèáêà ïðè ìîäèôèêàöèè! ", error, ", \"", ErrorDescription( error ), "\"" );
            }
            Sleep(1000);
            if ((j > 2) || IsStopped()) break;
            j++;
         }
         while (IsTradeContextBusy() && !IsStopped()) Sleep(1000);
         find = true;
      }
	}
	
	if (!find)
	{
	   Alert("Íå íàéäåíû îðäåðà ïî óêàçàíûì ïàðàìåòðàì!");
	}
	
	return(0);
}

int deinit()
{
   return(0);
}