Pending Place Pause Delete

ÿþ//+------------------------------------------------------------------+

//|                                   Pending Place Pause Delete.mq5 |

//|                              Copyright © 2020, Vladimir Karputov |

//|                     https://www.mql5.com/ru/market/product/43516 |

//+------------------------------------------------------------------+

#property copyright "Copyright © 2020, Vladimir Karputov"

#property link      "https://www.mql5.com/ru/market/product/43516"

#property version   "1.000"

/*

   barabashkakvn Trading engine 3.111

*/

#include <Trade\PositionInfo.mqh>

#include <Trade\Trade.mqh>

#include <Trade\SymbolInfo.mqh>

#include <Trade\AccountInfo.mqh>

#include <Trade\OrderInfo.mqh>

#include <Expert\Money\MoneyFixedMargin.mqh>

//---

CPositionInfo  m_position;                   // object of CPositionInfo class

CTrade         m_trade;                      // object of CTrade class

CSymbolInfo    m_symbol;                     // object of CSymbolInfo class

CAccountInfo   m_account;                    // object of CAccountInfo class

COrderInfo     m_order;                      // object of COrderInfo class

CMoneyFixedMargin *m_money;                  // object of CMoneyFixedMargin class

//+------------------------------------------------------------------+

//| Enum Lor or Risk                                                 |

//+------------------------------------------------------------------+

enum ENUM_LOT_OR_RISK

  {

   lots_min=0, // Lots Min

   lot=1,      // Constant lot

   risk=2,     // Risk in percent for a deal

  };

//--- input parameters

input ushort   InpStopLoss          = 45;          // Stop Loss, in pips (1.00045-1.00055=1 pips)

input ushort   InpTakeProfit        = 115;         // Take Profit, in pips (1.00045-1.00055=1 pips)

input ENUM_LOT_OR_RISK InpLotOrRisk = risk;        // Money management: Lot OR Risk

input double   InpVolumeLotOrRisk   = 3.0;         // The value for "Money management"

input ulong    InpDeviation         = 10;          // Deviation, in points (1.00045-1.00055=10 points)

//--- Start

input uchar    InpStartHour         = 9;           // Start HH

input uchar    InpStartMinute       = 29;          // Start MM

input uchar    InpStartSeconds      = 10;          // Start SS

//--- End

input uchar    InpEndHour           = 9;           // End HH

input uchar    InpEndMinute         = 35;          // End MM

input uchar    InpEndSeconds        = 00;          // End SS

//---

input ushort   InpPendingIndent     = 5;           // Pending: Indent, in pips (1.00045-1.00055=1 pips)

input ushort   InpMaxSpread         = 50;          // Pending: Maximum spread, in points (1.00045-1.00055=10 points) ('0' -> OFF)

//---

input bool     InpPrintLog          = false;       // Print log

input ulong    InpMagic             = 261842196;   // Magic number

//---

double   m_stop_loss                = 0.0;      // Stop Loss               -> double

double   m_take_profit              = 0.0;      // Take Profit             -> double

double   m_pending_indent           = 0.0;      // Pending: Indent         -> double

double   m_max_spread               = 0.0;      // Pending: Maximum spread -> double



double   m_adjusted_point;                      // point value adjusted for 3 or 5 points

bool     m_need_delete_all          = false;    // delete all pending orders

datetime m_last_signal              = 0;        // "0" -> D'1970.01.01 00:00';

datetime m_last_day                 = 0;        // "0" -> D'1970.01.01 00:00';

bool     m_waiting_pending_order    = false;    // waiting for a pending order

long     m_start_time               = 0;

long     m_end_time                 = 0;

//--- ***

//---    and pending orders (if the spread was verified)

//---    just shoot and zero out the arrays of structures

//+------------------------------------------------------------------+

//| Structurt Pending                                                |

//+------------------------------------------------------------------+

struct STRUCT_PENDING

  {

   ENUM_ORDER_TYPE   pending_type;           // pending order type

   double            volume;                 // pending order volume

   double            price;                  // pending order price

   double            stop_loss;              // pending order stop loss, in pips * m_adjusted_point (if "0.0" -> the m_stop_loss)

   double            take_profit;            // pending order take profit, in pips * m_adjusted_point (if "0.0" -> the m_take_profit)

   //--- Constructor

                     STRUCT_PENDING()

     {

      pending_type               = WRONG_VALUE;

      volume                     = 0.0;

      price                      = 0.0;

      stop_loss                  = 0.0;

      take_profit                = 0.0;

     }

  };

STRUCT_PENDING SPending[];

//+------------------------------------------------------------------+

//| Expert initialization function                                   |

//+------------------------------------------------------------------+

int OnInit()

  {

   if(!m_symbol.Name(Symbol())) // sets symbol name

     {

      Print(__FILE__," ",__FUNCTION__,", ERROR: CSymbolInfo.Name");

      return(INIT_FAILED);

     }

   RefreshRates();

//---

   m_trade.SetExpertMagicNumber(InpMagic);

   m_trade.SetMarginMode();

   m_trade.SetTypeFillingBySymbol(m_symbol.Name());

   m_trade.SetDeviationInPoints(InpDeviation);

//--- tuning for 3 or 5 digits

   int digits_adjust=1;

   if(m_symbol.Digits()==3 || m_symbol.Digits()==5)

      digits_adjust=10;

   m_adjusted_point=m_symbol.Point()*digits_adjust;



   m_stop_loss             = InpStopLoss              * m_adjusted_point;

   m_take_profit           = InpTakeProfit            * m_adjusted_point;

   m_pending_indent        = InpPendingIndent         * m_adjusted_point;

   m_max_spread            = InpMaxSpread             * m_symbol.Point();

//--- check the input parameter "Lots"

   string err_text="";

   if(InpLotOrRisk==lot)

     {

      if(!CheckVolumeValue(InpVolumeLotOrRisk,err_text))

        {

         //--- when testing, we will only output to the log about incorrect input parameters

         if(MQLInfoInteger(MQL_TESTER))

           {

            Print(__FILE__," ",__FUNCTION__,", ERROR: ",err_text);

            return(INIT_FAILED);

           }

         else // if the Expert Advisor is run on the chart, tell the user about the error

           {

            Alert(__FILE__," ",__FUNCTION__,", ERROR: ",err_text);

            return(INIT_PARAMETERS_INCORRECT);

           }

        }

     }

   else

      if(InpLotOrRisk==risk)

        {

         if(m_money!=NULL)

            delete m_money;

         m_money=new CMoneyFixedMargin;

         if(m_money!=NULL)

           {

            if(InpVolumeLotOrRisk<1 || InpVolumeLotOrRisk>100)

              {

               Print(__FILE__," ",__FUNCTION__,", ERROR: ");

               Print("The value for \"Money management\" (",DoubleToString(InpVolumeLotOrRisk,2),") -> invalid parameters");

               Print("   parameter must be in the range: from 1.00 to 100.00");

               return(INIT_FAILED);

              }

            if(!m_money.Init(GetPointer(m_symbol),Period(),m_symbol.Point()*digits_adjust))

              {

               Print(__FILE__," ",__FUNCTION__,", ERROR: CMoneyFixedMargin.Init");

               return(INIT_FAILED);

              }

            m_money.Percent(InpVolumeLotOrRisk);

           }

         else

           {

            Print(__FILE__," ",__FUNCTION__,", ERROR: Object CMoneyFixedMargin is NULL");

            return(INIT_FAILED);

           }

        }

//---

   m_start_time=InpStartHour*60*60+InpStartMinute*60+InpStartSeconds;

   m_end_time=InpEndHour*60*60+InpEndMinute*60+InpEndSeconds;;

//---

   return(INIT_SUCCEEDED);

  }

//+------------------------------------------------------------------+

//| Expert deinitialization function                                 |

//+------------------------------------------------------------------+

void OnDeinit(const int reason)

  {

//---

   if(m_money!=NULL)

      delete m_money;

  }

//+------------------------------------------------------------------+

//| Expert tick function                                             |

//+------------------------------------------------------------------+

void OnTick()

  {

//---

   if(m_need_delete_all)

     {

      if(IsPendingOrdersExists())

        {

         double level;

         if(FreezeStopsLevels(level))

           {

            DeleteAllPendingOrders(level);

            return;

           }

         else

            return;

        }

      else

         m_need_delete_all=false;

     }

//---

   int size_need_pending=ArraySize(SPending);

   if(size_need_pending>0)

     {

      if(!m_waiting_pending_order)

         for(int i=size_need_pending-1; i>=0; i--)

           {

            double level;

            double adjusted_point=0;

            if(FreezeStopsLevels(level))

              {

               m_waiting_pending_order=true;

               PlaceOrders(i,level);

              }

           }

      return;

     }

//--- search for trading signals no more than once every 10 seconds

   datetime time_current=TimeCurrent();

   datetime time_D1=iTime(m_symbol.Name(),PERIOD_D1,0);

   if(time_current-m_last_signal>10)

     {

      MqlDateTime STimeCurrent;

      TimeToStruct(time_current,STimeCurrent);

      long long_time_current=STimeCurrent.hour*60*60+STimeCurrent.min*60+STimeCurrent.sec;

      //---

      if(m_last_day!=time_D1)

        {

         if(long_time_current>=m_start_time)

           {

            //--- search for trading signals

            if(!RefreshRates())

              {

               time_current=0;

               return;

              }

            if(!SearchTradingSignals())

              {

               time_current=0;

               return;

              }

           }

         m_last_signal=time_current;

        }

      else

        {

         if(long_time_current>=m_end_time)

            if(IsPendingOrdersExists())

              {

               m_need_delete_all=true;

               return;

              }

        }

     }

//---

  }

//+------------------------------------------------------------------+

//| TradeTransaction function                                        |

//+------------------------------------------------------------------+

void OnTradeTransaction(const MqlTradeTransaction &trans,

                        const MqlTradeRequest &request,

                        const MqlTradeResult &result)

  {

//---



  }

//+------------------------------------------------------------------+

//| Refreshes the symbol quotes data                                 |

//+------------------------------------------------------------------+

bool RefreshRates()

  {

//--- refresh rates

   if(!m_symbol.RefreshRates())

     {

      if(InpPrintLog)

         Print(__FILE__," ",__FUNCTION__,", ERROR: ","RefreshRates error");

      return(false);

     }

//--- protection against the return value of "zero"

   if(m_symbol.Ask()==0 || m_symbol.Bid()==0)

     {

      if(InpPrintLog)

         Print(__FILE__," ",__FUNCTION__,", ERROR: ","Ask == 0.0 OR Bid == 0.0");

      return(false);

     }

//---

   return(true);

  }

//+------------------------------------------------------------------+

//| Check the correctness of the position volume                     |

//+------------------------------------------------------------------+

bool CheckVolumeValue(double volume,string &error_description)

  {

//--- minimal allowed volume for trade operations

   double min_volume=m_symbol.LotsMin();

   if(volume<min_volume)

     {

      if(TerminalInfoString(TERMINAL_LANGUAGE)=="Russian")

         error_description=StringFormat("1J5< <5=LH5 <8=8<0;L=> 4>?CAB8<>3> SYMBOL_VOLUME_MIN=%.2f",min_volume);

      else

         error_description=StringFormat("Volume is less than the minimal allowed SYMBOL_VOLUME_MIN=%.2f",min_volume);

      return(false);

     }

//--- maximal allowed volume of trade operations

   double max_volume=m_symbol.LotsMax();

   if(volume>max_volume)

     {

      if(TerminalInfoString(TERMINAL_LANGUAGE)=="Russian")

         error_description=StringFormat("1J5< 1>;LH5 <0:A8<0;L=> 4>?CAB8<>3> SYMBOL_VOLUME_MAX=%.2f",max_volume);

      else

         error_description=StringFormat("Volume is greater than the maximal allowed SYMBOL_VOLUME_MAX=%.2f",max_volume);

      return(false);

     }

//--- get minimal step of volume changing

   double volume_step=m_symbol.LotsStep();

   int ratio=(int)MathRound(volume/volume_step);

   if(MathAbs(ratio*volume_step-volume)>0.0000001)

     {

      if(TerminalInfoString(TERMINAL_LANGUAGE)=="Russian")

         error_description=StringFormat("1J5< =5 :@0B5= <8=8<0;L=><C H03C SYMBOL_VOLUME_STEP=%.2f, 1;8609H89 ?@028;L=K9 >1J5< %.2f",

                                        volume_step,ratio*volume_step);

      else

         error_description=StringFormat("Volume is not a multiple of the minimal step SYMBOL_VOLUME_STEP=%.2f, the closest correct volume is %.2f",

                                        volume_step,ratio*volume_step);

      return(false);

     }

   error_description="Correct volume value";

   return(true);

  }

//+------------------------------------------------------------------+

//| Lot Check                                                        |

//+------------------------------------------------------------------+

double LotCheck(double lots,CSymbolInfo &symbol)

  {

//--- calculate maximum volume

   double volume=NormalizeDouble(lots,2);

   double stepvol=symbol.LotsStep();

   if(stepvol>0.0)

      volume=stepvol*MathFloor(volume/stepvol);

//---

   double minvol=symbol.LotsMin();

   if(volume<minvol)

      volume=0.0;

//---

   double maxvol=symbol.LotsMax();

   if(volume>maxvol)

      volume=maxvol;

   return(volume);

  }

//+------------------------------------------------------------------+

//| Check Freeze and Stops levels                                    |

//+------------------------------------------------------------------+

bool FreezeStopsLevels(double &level)

  {

//--- check Freeze and Stops levels

   /*

      Type of order/position  |  Activation price  |  Check

      ------------------------|--------------------|--------------------------------------------

      Buy Limit order         |  Ask               |  Ask-OpenPrice  >= SYMBOL_TRADE_FREEZE_LEVEL

      Buy Stop order          |  Ask               |  OpenPrice-Ask  >= SYMBOL_TRADE_FREEZE_LEVEL

      Sell Limit order        |  Bid               |  OpenPrice-Bid  >= SYMBOL_TRADE_FREEZE_LEVEL

      Sell Stop order         |  Bid               |  Bid-OpenPrice  >= SYMBOL_TRADE_FREEZE_LEVEL

      Buy position            |  Bid               |  TakeProfit-Bid >= SYMBOL_TRADE_FREEZE_LEVEL

                              |                    |  Bid-StopLoss   >= SYMBOL_TRADE_FREEZE_LEVEL

      Sell position           |  Ask               |  Ask-TakeProfit >= SYMBOL_TRADE_FREEZE_LEVEL

                              |                    |  StopLoss-Ask   >= SYMBOL_TRADE_FREEZE_LEVEL



      Buying is done at the Ask price                 |  Selling is done at the Bid price

      ------------------------------------------------|----------------------------------

      TakeProfit        >= Bid                        |  TakeProfit        <= Ask

      StopLoss          <= Bid                        |  StopLoss          >= Ask

      TakeProfit - Bid  >= SYMBOL_TRADE_STOPS_LEVEL   |  Ask - TakeProfit  >= SYMBOL_TRADE_STOPS_LEVEL

      Bid - StopLoss    >= SYMBOL_TRADE_STOPS_LEVEL   |  StopLoss - Ask    >= SYMBOL_TRADE_STOPS_LEVEL

   */

   if(!RefreshRates() || !m_symbol.Refresh())

      return(false);

//--- FreezeLevel -> for pending order and modification

   double freeze_level=m_symbol.FreezeLevel()*m_symbol.Point();

   if(freeze_level==0.0)

      freeze_level=(m_symbol.Ask()-m_symbol.Bid())*3.0;

//--- StopsLevel -> for TakeProfit and StopLoss

   double stop_level=m_symbol.StopsLevel()*m_symbol.Point();

   if(stop_level==0.0)

      stop_level=(m_symbol.Ask()-m_symbol.Bid())*3.0;



   if(freeze_level<=0.0 || stop_level<=0.0)

      return(false);



   level=(freeze_level>stop_level)?freeze_level:stop_level;



   double spread=m_symbol.Spread()*m_symbol.Point()*3.0;

   level=(level>spread)?level:spread;

//---

   return(true);

  }

//+------------------------------------------------------------------+

//| Print CTrade result                                              |

//+------------------------------------------------------------------+

void PrintResultTrade(CTrade &trade,CSymbolInfo &symbol)

  {

   Print(__FILE__," ",__FUNCTION__,", Symbol: ",symbol.Name()+", "+

         "Code of request result: "+IntegerToString(trade.ResultRetcode())+", "+

         "Code of request result as a string: "+trade.ResultRetcodeDescription());

   Print("Deal ticket: "+IntegerToString(trade.ResultDeal())+", "+

         "Order ticket: "+IntegerToString(trade.ResultOrder())+", "+

         "Order retcode external: "+IntegerToString(trade.ResultRetcodeExternal())+", "+

         "Volume of deal or order: "+DoubleToString(trade.ResultVolume(),2));

   Print("Price, confirmed by broker: "+DoubleToString(trade.ResultPrice(),symbol.Digits())+", "+

         "Current bid price: "+DoubleToString(symbol.Bid(),symbol.Digits())+" (the requote): "+DoubleToString(trade.ResultBid(),symbol.Digits())+", "+

         "Current ask price: "+DoubleToString(symbol.Ask(),symbol.Digits())+" (the requote): "+DoubleToString(trade.ResultAsk(),symbol.Digits()));

   Print("Broker comment: "+trade.ResultComment());

  }

//+------------------------------------------------------------------+

//| Search trading signals                                           |

//+------------------------------------------------------------------+

bool SearchTradingSignals(void)

  {

   double volume_buys        = 0.0;

   double volume_sells       = 0.0;

   double volume_buy_limits  = 0.0;

   double volume_sell_limits = 0.0;

   double volume_buy_stops   = 0.0;

   double volume_sell_stops  = 0.0;

   CalculateAllVolumes(volume_buys,volume_sells,

                       volume_buy_limits,volume_sell_limits,

                       volume_buy_stops,volume_sell_stops);

   if(volume_buy_stops==0.0)

     {

      int size_need_pending=ArraySize(SPending);

      ArrayResize(SPending,size_need_pending+1);

      SPending[size_need_pending].pending_type=ORDER_TYPE_BUY_STOP;

      if(InpPrintLog)

         Print(__FILE__," ",__FUNCTION__,", OK: ","Signal BUY STOP");

      m_last_day=iTime(m_symbol.Name(),PERIOD_D1,0);

     }

   if(volume_sell_stops==0.0)

     {

      int size_need_pending=ArraySize(SPending);

      ArrayResize(SPending,size_need_pending+1);

      SPending[size_need_pending].pending_type=ORDER_TYPE_SELL_STOP;

      if(InpPrintLog)

         Print(__FILE__," ",__FUNCTION__,", OK: ","Signal SELL STOP");

      m_last_day=iTime(m_symbol.Name(),PERIOD_D1,0);

     }

//---

   return(true);

  }

//+------------------------------------------------------------------+

//| Delete all pending orders                                        |

//+------------------------------------------------------------------+

void DeleteAllPendingOrders(const double level)

  {

   for(int i=OrdersTotal()-1; i>=0; i--) // returns the number of current orders

      if(m_order.SelectByIndex(i))     // selects the pending order by index for further access to its properties

         if(m_order.Symbol()==m_symbol.Name() && m_order.Magic()==InpMagic)

           {

            if(m_order.OrderType()==ORDER_TYPE_BUY_LIMIT)

              {

               if(m_symbol.Ask()-m_order.PriceOpen()>=level)

                  if(!m_trade.OrderDelete(m_order.Ticket()))

                     if(InpPrintLog)

                        Print(__FILE__," ",__FUNCTION__,", ERROR: ","CTrade.OrderDelete ",m_order.Ticket());

               continue;

              }

            if(m_order.OrderType()==ORDER_TYPE_BUY_STOP)

              {

               if(m_order.PriceOpen()-m_symbol.Ask()>=level)

                  if(!m_trade.OrderDelete(m_order.Ticket()))

                     if(InpPrintLog)

                        Print(__FILE__," ",__FUNCTION__,", ERROR: ","CTrade.OrderDelete ",m_order.Ticket());

               continue;

              }

            if(m_order.OrderType()==ORDER_TYPE_SELL_LIMIT)

              {

               if(m_order.PriceOpen()-m_symbol.Bid()>=level)

                  if(!m_trade.OrderDelete(m_order.Ticket()))

                     if(InpPrintLog)

                        Print(__FILE__," ",__FUNCTION__,", ERROR: ","CTrade.OrderDelete ",m_order.Ticket());

               continue;

              }

            if(m_order.OrderType()==ORDER_TYPE_SELL_STOP)

              {

               if(m_symbol.Bid()-m_order.PriceOpen()>=level)

                  if(!m_trade.OrderDelete(m_order.Ticket()))

                     if(InpPrintLog)

                        Print(__FILE__," ",__FUNCTION__,", ERROR: ","CTrade.OrderDelete ",m_order.Ticket());

               continue;

              }

           }

  }

//+------------------------------------------------------------------+

//| Is pending orders exists                                         |

//+------------------------------------------------------------------+

bool IsPendingOrdersExists(void)

  {

   for(int i=OrdersTotal()-1; i>=0; i--) // returns the number of current orders

      if(m_order.SelectByIndex(i))     // selects the pending order by index for further access to its properties

         if(m_order.Symbol()==m_symbol.Name() && m_order.Magic()==InpMagic)

            return(true);

//---

   return(false);

  }

//+------------------------------------------------------------------+

//| Place Orders                                                     |

//+------------------------------------------------------------------+

void PlaceOrders(const int index,const double level)

  {

//--- check Freeze and Stops levels

   /*

      Type of order/position  |  Activation price  |  Check

      ------------------------|--------------------|--------------------------------------------

      Buy Limit order         |  Ask               |  Ask-OpenPrice  >= SYMBOL_TRADE_FREEZE_LEVEL

      Buy Stop order          |  Ask               |  OpenPrice-Ask  >= SYMBOL_TRADE_FREEZE_LEVEL

      Sell Limit order        |  Bid               |  OpenPrice-Bid  >= SYMBOL_TRADE_FREEZE_LEVEL

      Sell Stop order         |  Bid               |  Bid-OpenPrice  >= SYMBOL_TRADE_FREEZE_LEVEL

      Buy position            |  Bid               |  TakeProfit-Bid >= SYMBOL_TRADE_FREEZE_LEVEL

                              |                    |  Bid-StopLoss   >= SYMBOL_TRADE_FREEZE_LEVEL

      Sell position           |  Ask               |  Ask-TakeProfit >= SYMBOL_TRADE_FREEZE_LEVEL

                              |                    |  StopLoss-Ask   >= SYMBOL_TRADE_FREEZE_LEVEL



      Buying is done at the Ask price                 |  Selling is done at the Bid price

      ------------------------------------------------|----------------------------------

      TakeProfit        >= Bid                        |  TakeProfit        <= Ask

      StopLoss          <= Bid                        |  StopLoss          >= Ask

      TakeProfit - Bid  >= SYMBOL_TRADE_STOPS_LEVEL   |  Ask - TakeProfit  >= SYMBOL_TRADE_STOPS_LEVEL

      Bid - StopLoss    >= SYMBOL_TRADE_STOPS_LEVEL   |  StopLoss - Ask    >= SYMBOL_TRADE_STOPS_LEVEL

   */

   double spread=m_symbol.Ask()-m_symbol.Bid();

   if(spread>m_max_spread)

     {

      m_waiting_pending_order=false;

      if(InpPrintLog)

         Print(__FILE__," ",__FUNCTION__,

               ", ERROR: ","Spread Ask-Bid (",DoubleToString(spread,m_symbol.Digits()),")",

               " > Maximum spread (",DoubleToString(m_max_spread,m_symbol.Digits()),")");

      return;

     }

//--- buy limit

   if(SPending[index].pending_type==ORDER_TYPE_BUY_LIMIT)

     {

      if(SPending[index].price==0.0)

         SPending[index].price=m_symbol.Ask()-m_pending_indent;

      if(m_symbol.Ask()-SPending[index].price<level) // check price

         SPending[index].price=m_symbol.Ask()-level;

      SPending[index].stop_loss=(m_stop_loss==0.0)?0.0:SPending[index].price-m_stop_loss;

      SPending[index].take_profit=(m_take_profit==0.0)?0.0:SPending[index].price+m_take_profit;

      double sl=SPending[index].stop_loss;

      if(sl<=0.0) // check sl

         sl=0.0;

      else

         if(SPending[index].price-sl<level)

            sl=SPending[index].price-level;



      double tp=SPending[index].take_profit;

      if(tp<=0.0) // check tp

         tp=0.0;

      else

         if(tp-SPending[index].price<level)

            tp=SPending[index].price+level;



      PendingOrder(index,sl,tp);

      ArrayRemove(SPending,index,1);

      m_waiting_pending_order=false;

      return;

     }

//--- sell limit

   if(SPending[index].pending_type==ORDER_TYPE_SELL_LIMIT)

     {

      if(SPending[index].price==0.0)

         SPending[index].price=m_symbol.Bid()+m_pending_indent;

      if(SPending[index].price-m_symbol.Bid()<level) // check price

         SPending[index].price=m_symbol.Bid()+level;

      SPending[index].stop_loss=(m_stop_loss==0.0)?0.0:SPending[index].price+m_stop_loss;

      SPending[index].take_profit=(m_take_profit==0.0)?0.0:SPending[index].price-m_take_profit;

      double sl=SPending[index].stop_loss;

      if(sl<=0.0) // check sl

         sl=0.0;

      else

         if(sl-SPending[index].price<level)

            sl=SPending[index].price+level;



      double tp=SPending[index].take_profit;

      if(tp<=0.0) // check tp

         tp=0.0;

      else

         if(SPending[index].price-tp<level)

            tp=SPending[index].price-level;



      PendingOrder(index,sl,tp);

      ArrayRemove(SPending,index,1);

      m_waiting_pending_order=false;

      return;

     }

//--- buy stop

   if(SPending[index].pending_type==ORDER_TYPE_BUY_STOP)

     {

      if(SPending[index].price==0.0)

         SPending[index].price=m_symbol.Ask()+m_pending_indent;

      if(SPending[index].price-m_symbol.Ask()<level) // check price

         SPending[index].price=m_symbol.Ask()+level;

      SPending[index].stop_loss=(m_stop_loss==0.0)?0.0:SPending[index].price-m_stop_loss;

      SPending[index].take_profit=(m_take_profit==0.0)?0.0:SPending[index].price+m_take_profit;

      double sl=SPending[index].stop_loss;

      if(sl<=0.0)// check sl

         sl=0.0;

      else

         if(SPending[index].price-sl<level)

            sl=SPending[index].price-level;



      double tp=SPending[index].take_profit;

      if(tp<=0.0) // check tp

         tp=0.0;

      else

         if(tp-SPending[index].price<level)

            tp=SPending[index].price+level;



      PendingOrder(index,sl,tp);

      ArrayRemove(SPending,index,1);

      m_waiting_pending_order=false;

      return;

     }

//--- sell stop

   if(SPending[index].pending_type==ORDER_TYPE_SELL_STOP)

     {

      if(SPending[index].price==0.0)

         SPending[index].price=m_symbol.Bid()-m_pending_indent;

      if(m_symbol.Bid()-SPending[index].price<level) // check price

         SPending[index].price=m_symbol.Bid()-level;

      SPending[index].stop_loss=(m_stop_loss==0.0)?0.0:SPending[index].price+m_stop_loss;

      SPending[index].take_profit=(m_take_profit==0.0)?0.0:SPending[index].price-m_take_profit;

      double sl=SPending[index].stop_loss;

      if(sl<=0.0) // check sl

         sl=0.0;

      else

         if(sl-SPending[index].price<level)

            sl=SPending[index].price+level;



      double tp=SPending[index].take_profit;

      if(tp<=0.0) // check tp

         tp=0.0;

      else

         if(SPending[index].price-tp<level)

            tp=SPending[index].price-level;



      PendingOrder(index,sl,tp);

      ArrayRemove(SPending,index,1);

      m_waiting_pending_order=false;

      return;

     }

  }

//+------------------------------------------------------------------+

//| Pending order                                                    |

//+------------------------------------------------------------------+

bool PendingOrder(const int index,double sl,double tp)

  {

   sl=m_symbol.NormalizePrice(sl);

   tp=m_symbol.NormalizePrice(tp);

//--- check volume before OrderSend to avoid "not enough money" error (CTrade)

   ENUM_ORDER_TYPE check_order_type=-1;

   switch(SPending[index].pending_type)

     {

      case  ORDER_TYPE_BUY:

         check_order_type=ORDER_TYPE_BUY;

         break;

      case ORDER_TYPE_SELL:

         check_order_type=ORDER_TYPE_SELL;

         break;

      case ORDER_TYPE_BUY_LIMIT:

         check_order_type=ORDER_TYPE_BUY;

         break;

      case ORDER_TYPE_SELL_LIMIT:

         check_order_type=ORDER_TYPE_SELL;

         break;

      case ORDER_TYPE_BUY_STOP:

         check_order_type=ORDER_TYPE_BUY;

         break;

      case ORDER_TYPE_SELL_STOP:

         check_order_type=ORDER_TYPE_SELL;

         break;

      default:

         return(false);

         break;

     }

//---

   double long_lot=0.0;

   double short_lot=0.0;

   if(InpLotOrRisk==risk)

     {

      bool error=false;

      long_lot=m_money.CheckOpenLong(m_symbol.Ask(),sl);

      if(InpPrintLog)

         Print(__FILE__," ",__FUNCTION__,", OK: ","sl=",DoubleToString(sl,m_symbol.Digits()),

               ", CheckOpenLong: ",DoubleToString(long_lot,2),

               ", Balance: ",    DoubleToString(m_account.Balance(),2),

               ", Equity: ",     DoubleToString(m_account.Equity(),2),

               ", FreeMargin: ", DoubleToString(m_account.FreeMargin(),2));

      if(long_lot==0.0)

        {

         if(InpPrintLog)

            Print(__FILE__," ",__FUNCTION__,", ERROR: ","CMoneyFixedMargin.CheckOpenLong returned the value of \"0.0\"");

         error=true;

        }

      //---

      short_lot=m_money.CheckOpenShort(m_symbol.Bid(),sl);

      if(InpPrintLog)

         Print(__FILE__," ",__FUNCTION__,", OK: ","sl=",DoubleToString(sl,m_symbol.Digits()),

               ", CheckOpenLong: ",DoubleToString(short_lot,2),

               ", Balance: ",    DoubleToString(m_account.Balance(),2),

               ", Equity: ",     DoubleToString(m_account.Equity(),2),

               ", FreeMargin: ", DoubleToString(m_account.FreeMargin(),2));

      if(short_lot==0.0)

        {

         if(InpPrintLog)

            Print(__FILE__," ",__FUNCTION__,", ERROR: ","CMoneyFixedMargin.CheckOpenShort returned the value of \"0.0\"");

         error=true;

        }

      //---

      if(error)

         return(false);

     }

   else

      if(InpLotOrRisk==lot)

        {

         long_lot=InpVolumeLotOrRisk;

         short_lot=InpVolumeLotOrRisk;

        }

      else

         if(InpLotOrRisk==lots_min)

           {

            long_lot=m_symbol.LotsMin();

            short_lot=m_symbol.LotsMin();

           }

         else

            return(false);

//--- check volume before OrderSend to avoid "not enough money" error (CTrade)

   double check_price=0;

   double check_lot=0;

   if(check_order_type==ORDER_TYPE_BUY)

     {

      check_price=m_symbol.Ask();

      check_lot=long_lot;

     }

   else

     {

      check_price=m_symbol.Bid();

      check_lot=short_lot;

     }

//---

   if(m_symbol.LotsLimit()>0.0)

     {

      double volume_buys        = 0.0;

      double volume_sells       = 0.0;

      double volume_buy_limits  = 0.0;

      double volume_sell_limits = 0.0;

      double volume_buy_stops   = 0.0;

      double volume_sell_stops  = 0.0;

      CalculateAllVolumes(volume_buys,volume_sells,

                          volume_buy_limits,volume_sell_limits,

                          volume_buy_stops,volume_sell_stops);

      if(volume_buys+volume_sells+

         volume_buy_limits+volume_sell_limits+

         volume_buy_stops+volume_sell_stops+check_lot>m_symbol.LotsLimit())

        {

         if(InpPrintLog)

            Print(__FILE__," ",__FUNCTION__,", ERROR: ","#0 ,",EnumToString(SPending[index].pending_type),", ",

                  "Volume Buy's (",DoubleToString(volume_buys,2),")",

                  "Volume Sell's (",DoubleToString(volume_sells,2),")",

                  "Volume Buy limit's (",DoubleToString(volume_buy_limits,2),")",

                  "Volume Sell limit's (",DoubleToString(volume_sell_limits,2),")",

                  "Volume Buy stops's (",DoubleToString(volume_buy_stops,2),")",

                  "Volume Sell stops's (",DoubleToString(volume_sell_stops,2),")",

                  "Check lot (",DoubleToString(check_lot,2),")",

                  " > Lots Limit (",DoubleToString(m_symbol.LotsLimit(),2),")");

         return(false);

        }

     }

//--- check maximal number of allowed pending orders

   int account_limit_orders=m_account.LimitOrders();

   if(account_limit_orders>0)

     {

      int all_pending_orders=CalculateAllPendingOrders();

      /*

            there is 8,  and there will be  9 > restriction 10 -> OK

            there is 9,  and there will be 10 > restriction 10 -> OK

            there is 10, and there will be 11 > restriction 10 -> ERROR

      */

      if(all_pending_orders+1>account_limit_orders)

         return(false);

     }

//--- check volume before OrderSend to avoid "not enough money" error (CTrade)

   double free_margin_check=m_account.FreeMarginCheck(m_symbol.Name(),

                            check_order_type,check_lot,check_price);

   double margin_check=m_account.MarginCheck(m_symbol.Name(),

                       check_order_type,check_lot,SPending[index].price);

   if(free_margin_check>margin_check)

     {

      bool result=m_trade.OrderOpen(m_symbol.Name(),

                                    SPending[index].pending_type,check_lot,0.0,

                                    m_symbol.NormalizePrice(SPending[index].price),

                                    m_symbol.NormalizePrice(sl),

                                    m_symbol.NormalizePrice(tp));

      if(result)

        {

         if(m_trade.ResultOrder()==0)

           {

            if(InpPrintLog)

               Print(__FILE__," ",__FUNCTION__,", ERROR: ","#1 ",EnumToString(SPending[index].pending_type)," -> false. Result Retcode: ",m_trade.ResultRetcode(),

                     ", description of result: ",m_trade.ResultRetcodeDescription());

            if(InpPrintLog)

               PrintResultTrade(m_trade,m_symbol);

            return(false);

           }

         else

           {

            if(InpPrintLog)

               Print(__FILE__," ",__FUNCTION__,", OK: ","#2 ",EnumToString(SPending[index].pending_type)," -> true. Result Retcode: ",m_trade.ResultRetcode(),

                     ", description of result: ",m_trade.ResultRetcodeDescription());

            if(InpPrintLog)

               PrintResultTrade(m_trade,m_symbol);

            return(true);

           }

        }

      else

        {

         if(InpPrintLog)

            Print(__FILE__," ",__FUNCTION__,", ERROR: ","#3 ",EnumToString(SPending[index].pending_type)," -> false. Result Retcode: ",m_trade.ResultRetcode(),

                  ", description of result: ",m_trade.ResultRetcodeDescription());

         if(InpPrintLog)

            PrintResultTrade(m_trade,m_symbol);

         return(false);

        }

     }

   else

     {

      if(InpPrintLog)

         Print(__FILE__," ",__FUNCTION__,", ERROR: CAccountInfo.FreeMarginCheck returned the value ",DoubleToString(free_margin_check,2));

      return(false);

     }

//---

   return(false);

  }

//+------------------------------------------------------------------+

//| Calculate all volumes                                            |

//+------------------------------------------------------------------+

void CalculateAllVolumes(double &volumne_buys,double &volumne_sells,

                         double &volumne_buy_limits,double &volumne_sell_limits,

                         double &volumne_buy_stops,double &volumne_sell_stops)

  {

   volumne_buys         = 0.0;

   volumne_sells        = 0.0;

   volumne_buy_limits   = 0.0;

   volumne_sell_limits  = 0.0;

   volumne_buy_stops    = 0.0;

   volumne_sell_stops   = 0.0;



   for(int i=PositionsTotal()-1; i>=0; i--)

      if(m_position.SelectByIndex(i)) // selects the position by index for further access to its properties

         if(m_position.Symbol()==m_symbol.Name())

           {

            if(m_position.PositionType()==POSITION_TYPE_BUY)

               volumne_buys+=m_position.Volume();

            else

               if(m_position.PositionType()==POSITION_TYPE_SELL)

                  volumne_sells+=m_position.Volume();

           }



   for(int i=OrdersTotal()-1; i>=0; i--) // returns the number of current orders

      if(m_order.SelectByIndex(i)) // selects the pending order by index for further access to its properties

         if(m_order.Symbol()==m_symbol.Name())

           {

            if(m_order.OrderType()==ORDER_TYPE_BUY_LIMIT)

               volumne_buy_limits+=m_order.VolumeInitial();

            else

               if(m_order.OrderType()==ORDER_TYPE_SELL_LIMIT)

                  volumne_sell_limits+=m_order.VolumeInitial();

               else

                  if(m_order.OrderType()==ORDER_TYPE_BUY_STOP)

                     volumne_buy_stops+=m_order.VolumeInitial();

                  else

                     if(m_order.OrderType()==ORDER_TYPE_SELL_STOP)

                        volumne_sell_stops+=m_order.VolumeInitial();

           }

  }

//+------------------------------------------------------------------+

//| Calculate all pending orders                                     |

//+------------------------------------------------------------------+

int CalculateAllPendingOrders(void)

  {

   int count=0;



   for(int i=OrdersTotal()-1; i>=0; i--) // returns the number of current orders

      if(m_order.SelectByIndex(i))     // selects the pending order by index for further access to its properties

         count++;

//---

   return(count);

  }

//+------------------------------------------------------------------+