//+------------------------------------------------------------------+
//|                                                         test.mq4 |
//|                      Copyright © 2009, MetaQuotes Software Corp. |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2009, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net"
#property show_inputs
extern int MaxRisk=2;
extern bool Buy=false; //для открытия ордера на покупку
extern bool Sell=false; //для открытия ордера на продажу
extern int TakeProfit=100;
extern int StopLoss=100;
//+------------------------------------------------------------------+
int start()
{double Lot=GetLot(MaxRisk);
 if(Lot==0) {Alert("Недостаточно средств!");return(0);}
 RefreshRates();
 if(Buy)  NewOrder(OP_BUY,Lot);
 if(Sell) NewOrder(OP_SELL,Lot);
return(0);}
//+------------------------------------------------------------------+
double GetLot(int Risk)
{double Free    =AccountFreeMargin();
 double One_Lot =MarketInfo(Symbol(),MODE_MARGINREQUIRED);
 double Min_Lot =MarketInfo(Symbol(),MODE_MINLOT);
 double Max_Lot =MarketInfo(Symbol(),MODE_MAXLOT);
 double Step    =MarketInfo(Symbol(),MODE_LOTSTEP);
 double Lot     =MathFloor(Free*Risk/100/One_Lot/Step)*Step;
 if(Lot<Min_Lot) Lot=Min_Lot;
 if(Lot>Max_Lot) Lot=Max_Lot;
 if(Lot*One_Lot>Free) return(0.0);
return(Lot);}
//+------------------------------------------------------------------+
int NewOrder(int Cmd,double Lot)
{double TP=0; //тейкпрофит
 double SL=0; //стоплосс
 double PR=0; //Цена
 while(!IsTradeAllowed()) Sleep(100);
 if(Cmd==OP_BUY)
   {PR=Ask;
    if(TakeProfit>0) TP=Ask+TakeProfit*Point;
    if(StopLoss>0) SL=Ask-StopLoss*Point;}
 if(Cmd==OP_SELL)
   {PR=Bid;
    if(TakeProfit>0) TP=Bid-TakeProfit*Point;
    if(StopLoss>0) SL=Bid+StopLoss*Point;}
 int tic=OrderSend(Symbol(),Cmd,Lot,PR,3,SL,TP,"",0,0,CLR_NONE);
 if(tic<0) Print("Ошибка открытия ордера: ",GetLastError());
return(tic);}
//+------------------------------------------------------------------+