请教高手：mql5中的OrderSelect方法，是否可以查到挂单所触发的下单订单

[quant_troy]

MQL4的官方文档中对OrderSelect的定义是这样的：

https://www.mql5.com/en/docs/trading/orderselect

但是当我们的EA去执行了OrderSend方法去挂单，等挂单触发后，再去调用OrderSelect方法来查询当前订单池（比如 OrderSelect(n, SELECT_BY_POS)），这个时候遍历订单池，查找新生成的订单，可以查询到OrderType是sell stop的挂单订单，那是否可以查找到实际触发时候的下单动作呢？

如果不能，MQL4中是否有提供API可以查到挂单所下的订单呢？

望解惑，十分感谢！

[Chunlei Zhang]

将挂单设置一个不同的magic,方便判断。

[quant_troy]

Chunlei Zhang:
将挂单设置一个不同的magic,方便判断。

你好，如果是想从代码中知道，什么时候触发了挂单，有对应的接口可以查询吗？

[Ziheng Zhuang]

标题写的MQL5,帖子中问的MQL4.

MT4不提供订单消息事件查询，没有对应的API，要监控订单事件，需要自己实现。

MT5提供非常详细的订单消息事件。

[Renjun Gu]

将挂单设置不同的magic或者 订单注释，

orderSelet后查找对应magic 或者订单注释的单子就可以了

[enbo lu]

自己写的检测挂单被激活的函数，返回被激活挂单的订单号：

//+------------------------------------------------------------------+
//|  Pending Order -> Market Order Detect function                   |
//+------------------------------------------------------------------+
//检测挂单转市价单                                                                  
long PendingToMarket(string _symbol)
{
    int _OrdersTotal = OrdersTotal();
    int now_OrdersTotal = 0;
    static int pre_OrdersTotal = 0;
    
    int now_OrdersArray[][2]; 
    
    int now_CurOrder = 0;
    
    static int pre_OrdersArray[][2]; 
    
    int pre_CurOrder = 0;
    long PendingOrderOpened_ticket = -1;
    int type;
    long ticket;
    bool find = false;
    
    ArrayResize( now_OrdersArray, MathMax( _OrdersTotal, 1 ) );
   
    ArrayInitialize( now_OrdersArray, 0 );

    for ( int i = _OrdersTotal - 1; i >= 0; i -- )
      {
        if ( !OrderSelect( i, SELECT_BY_POS ) )
          {
            Print( "OrderSelect( ", i, ", SELECT_BY_POS ) - Error #",GetLastError() );
            continue;
          }
       
        if ( OrderMagicNumber() == MAGIC && OrderSymbol() == _symbol )
          {
            now_OrdersArray[now_OrdersTotal][0] = OrderTicket();
            now_OrdersArray[now_OrdersTotal][1] = OrderType();
            now_OrdersTotal ++;
          }
      }
    
    ArrayResize( now_OrdersArray, MathMax( now_OrdersTotal, 1 ) );
 
    for ( pre_CurOrder = 0; pre_CurOrder < pre_OrdersTotal; pre_CurOrder ++ )
      {
       
        ticket = pre_OrdersArray[pre_CurOrder][0];
        type   = pre_OrdersArray[pre_CurOrder][1];

     
        for ( now_CurOrder = 0; now_CurOrder < now_OrdersTotal; now_CurOrder ++ )
          {

            if ( ticket == now_OrdersArray[now_CurOrder][0] )
              {
 
                if ( type != now_OrdersArray[now_CurOrder][1] )
                  {
       
                    PendingOrderOpened_ticket = ticket;
                    find = true;
                  }
                break;
              }
          } 
          
        if(find) break;                    
      }    
   
    ArrayResize( pre_OrdersArray, MathMax( now_OrdersTotal, 1 ) );
    for ( now_CurOrder = 0; now_CurOrder < now_OrdersTotal; now_CurOrder ++ )
    {
        pre_OrdersArray[now_CurOrder][0] = now_OrdersArray[now_CurOrder][0];
        pre_OrdersArray[now_CurOrder][1] = now_OrdersArray[now_CurOrder][1];
    }
    pre_OrdersTotal = now_OrdersTotal;

    return(PendingOrderOpened_ticket);
}