11.6 控单组件开发

通过遍历所有持仓单进行条件过滤下单

查询指定订单是否存在

// 查询指定订单是否存在
bool selectTicket(const string symbol, const int type, const string comment, const ulong magic)
{
  string m_sym = "";
  if(symbol == NULL || symbol == "") m_sym = _Symbol;
  else m_sym = symbol;
  // 获得持仓单总数
  int len = PositionsTotal();
  printf(len);
  for(int i=0; i<len;i++)
  {
    // 根据序号返回交易订单号
    ulong pos_ticket = PositionGetTicket(i);
    // 判断持仓单号信息是否可以成功获取
    if(PositionSelectByTicket(pos_ticket))
    {
      datetime pos_dt = (datetime)PositionGetInteger(POSITION_TIME);
      string pos_sym = PositionGetString(POSITION_SYMBOL);
      string pos_com = (string)PositionGetString(POSITION_COMMENT);
      ulong pos_magic = PositionGetInteger(POSITION_MAGIC);
      int pos_type =  (int)PositionGetInteger(POSITION_TYPE);
      //printf("交易品种: %s, 注释: %s, magic: %llu, 开仓时间: %s",pos_sym,pos_com,pos_magic,(string)pos_dt);
      //printf("pos_com: %s, comment: %s",pos_com,comment);
      if(pos_com == comment)printf("ok");
      if(pos_magic == magic && pos_com == comment && pos_type == type)
      {
        //printf("该定单已经存在,交易品种: %s, 注释: %s, magic: %llu, 开仓时间: %s",
        //  pos_sym,pos_com,pos_magic,(string)pos_dt);
        return true;
      }
      
    }
  }
  
  // 如果 magic, 注释, 方向都相等就不用在开单了
  return false;
}

// buy方向下单函数组件
bool BuyAdd( const string symbol=NULL, // 交易品种 1
          const double volume=0.01, // 定单手数 3
          const int sl=0, // 止损价 4
          const int tp=0, // 止盈价 5
          const int deviation=5, // 滑点 6
          const string comment="", // 定单注释 7
          const ulong magic=8199231 // EA识别码 8
                  
)
{
  bool is_ticket = selectTicket(symbol,0, comment,magic);
  if(!is_ticket)
    return PositionSend(symbol, 0,volume,sl,tp,deviation,comment,magic);
  else return false;
}

// sell方向下单函数组件
bool SellAdd( const string symbol=NULL, // 交易品种 1
          const double volume=0.01, // 定单手数 3
          const int sl=0, // 止损价 4
          const int tp=0, // 止盈价 5
          const int deviation=5, // 滑点 6
          const string comment="", // 定单注释 7
          const ulong magic=8199231 // EA识别码 8
                  
)
{
  bool is_ticket = selectTicket(symbol,1, comment,magic);
  if(!is_ticket)
    return PositionSend(symbol, 1,volume,sl,tp,deviation,comment,magic);
  else return false;
}

调用层

#property copyright "Copyright 2022, Author:阿龙."
#property link      "https://www.guapit.com"
#property description "MT5智能交易编程课程"
#property description "QQ: 8199231"
#property version   "1.00"

// #include <Guapit/Symbols.mqh>
#include <Guapit/Trade.mqh>

void OnStart()
  {
    //selectTicket(NULL,0,"",8199231);
    string symbol = "GBPUSD";
    string com = symbol + " " + "Buy" + " " + (string)2;
    //BuyAdd(symbol, 0.1,100,0,5,com,8199231);
    string symbol2 = _Symbol;
    string com2 = symbol2 + " " + "Sell" + " " + (string)3;
    SellAdd(symbol2, 0.8,100,0,5,com2,8199231);
  }