Delete pending orders

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

//|                                        Delete pending orders.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"

#property description "Delete pending orders when a position appears"

/*

   barabashkakvn Trading engine 3.114

*/

#include <Trade\PositionInfo.mqh>

#include <Trade\Trade.mqh>

#include <Trade\SymbolInfo.mqh>

#include <Trade\OrderInfo.mqh>

//---

CPositionInfo  m_position;                   // object of CPositionInfo class

CTrade         m_trade;                      // object of CTrade class

CSymbolInfo    m_symbol;                     // object of CSymbolInfo class

COrderInfo     m_order;                      // object of COrderInfo class

//--- input parameters

input ulong    InpDeviation         = 30;          // Deviation, in points (1.00045-1.00055=10 points)

input bool     InpPrintLog          = false;       // Print log

input ulong    InpMagic             = 599613188;   // Magic number

//---

bool     m_need_delete_all          = false;       // delete all pending orders

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

//| 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);

//---

   return(INIT_SUCCEEDED);

  }

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

//| Expert deinitialization function                                 |

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

void OnDeinit(const int reason)

  {

//---



  }

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

//| 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;

     }

//---

  }

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

//| TradeTransaction function                                        |

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

void OnTradeTransaction(const MqlTradeTransaction &trans,

                        const MqlTradeRequest &request,

                        const MqlTradeResult &result)

  {

//--- get transaction type as enumeration value

   ENUM_TRADE_TRANSACTION_TYPE type=trans.type;

//--- if transaction is result of addition of the transaction in history

   if(type==TRADE_TRANSACTION_DEAL_ADD)

     {

      long     deal_ticket       =0;

      long     deal_order        =0;

      long     deal_time         =0;

      long     deal_time_msc     =0;

      long     deal_type         =-1;

      long     deal_entry        =-1;

      long     deal_magic        =0;

      long     deal_reason       =-1;

      long     deal_position_id  =0;

      double   deal_volume       =0.0;

      double   deal_price        =0.0;

      double   deal_commission   =0.0;

      double   deal_swap         =0.0;

      double   deal_profit       =0.0;

      string   deal_symbol       ="";

      string   deal_comment      ="";

      string   deal_external_id  ="";

      if(HistoryDealSelect(trans.deal))

        {

         deal_ticket       =HistoryDealGetInteger(trans.deal,DEAL_TICKET);

         deal_order        =HistoryDealGetInteger(trans.deal,DEAL_ORDER);

         deal_time         =HistoryDealGetInteger(trans.deal,DEAL_TIME);

         deal_time_msc     =HistoryDealGetInteger(trans.deal,DEAL_TIME_MSC);

         deal_type         =HistoryDealGetInteger(trans.deal,DEAL_TYPE);

         deal_entry        =HistoryDealGetInteger(trans.deal,DEAL_ENTRY);

         deal_magic        =HistoryDealGetInteger(trans.deal,DEAL_MAGIC);

         deal_reason       =HistoryDealGetInteger(trans.deal,DEAL_REASON);

         deal_position_id  =HistoryDealGetInteger(trans.deal,DEAL_POSITION_ID);



         deal_volume       =HistoryDealGetDouble(trans.deal,DEAL_VOLUME);

         deal_price        =HistoryDealGetDouble(trans.deal,DEAL_PRICE);

         deal_commission   =HistoryDealGetDouble(trans.deal,DEAL_COMMISSION);

         deal_swap         =HistoryDealGetDouble(trans.deal,DEAL_SWAP);

         deal_profit       =HistoryDealGetDouble(trans.deal,DEAL_PROFIT);



         deal_symbol       =HistoryDealGetString(trans.deal,DEAL_SYMBOL);

         deal_comment      =HistoryDealGetString(trans.deal,DEAL_COMMENT);

         deal_external_id  =HistoryDealGetString(trans.deal,DEAL_EXTERNAL_ID);

        }

      else

         return;

      ENUM_DEAL_ENTRY enum_deal_entry=(ENUM_DEAL_ENTRY)deal_entry;

      if(deal_symbol==m_symbol.Name() && deal_magic==InpMagic)

        {

         if(deal_type==DEAL_TYPE_BUY || deal_type==DEAL_TYPE_SELL)

           {

            if(deal_entry==DEAL_ENTRY_IN || deal_entry==DEAL_ENTRY_INOUT)

               m_need_delete_all=true;

           }

        }

     }

  }

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

//| 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 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);

  }

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

//| 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);

  }

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