iCustom() 缓冲区 - 如何从 MT4 中的自定义指标缓冲区获取值？

Question

我正在尝试编写一个 EA，当自定义指标显示箭头 { 卖出或买入 } 时，该 EA 将下单。我正在使用 iCustom() 来执行此操作，但我正在努力比较值。

这是我的代码：

void OnTick()
  {
//---
       double sell=iCustom(NULL,0,"fx30",0,0);
       double buy=iCustom(NULL,0,"fx30",1,0);
       
       if(sell>0)//sell
       {
        //check if buy trade is running
        //close a buy trade
        //open a sell trade on success
         if(buyTicket>0)
          {
            bool ret=OrderClose(buyTicket, lot, Bid, slipage,clrBlue);
            if(ret==true)
              {
                printf("the sell number is: "+sell);
                sellTicket=OrderSend(Symbol(),OP_SELL,lot,Bid,slipage,NULL,NULL,"MATHUNYA SELL",magic,0,clrRed);
              }
          }
         else
         {
           //we dont have a buy trade open
           //place a sell trade
           //only one trade should be open
           if(sellTicket>0)
           {
             printf("sell order already running");
           }
           else
           {
             printf("the sell number is: "+sell);
             sellTicket=OrderSend(Symbol(),OP_SELL,lot,Bid,slipage,NULL,NULL,"MATHUNYA SELL",magic,0,clrRed);
           }     
         }            
       }
       else{
         Print("buy: "+buy+", sell: "+sell+" Time: "+TimeToStr(Time[1]));
         printf("awaiting sell order..");
       }
       
       if(buy>0)//buy
       {
       //check if sell trade is running
       //close a sell trade
       //open a buy trade on success
         if(sellTicket>0)
          {
            bool ret=OrderClose(sellTicket, lot, Ask, slipage,clrYellow);
            if(ret==true)
              {
                printf("the buy number is: "+buy);
                buyTicket=OrderSend(Symbol(),OP_BUY,lot,Ask,slipage,NULL,NULL,"MATHUNYA BUY",magic,0,clrGreen);
              }
          }
         else
         {
           //we dont have a sell trade open
           //place a buy trade
           //only one trade should be open
           if(buyTicket>0)
           {
             printf("buy order already running");
           }
           else
           {
              printf("the buy number is: "+buy);
              buyTicket=OrderSend(Symbol(),OP_BUY,lot,Ask,slipage,NULL,NULL,"MATHUNYA BUY",magic,0,clrGreen);
           }     
         }          
       }else
       {
         Print("buy: "+buy+", sell: "+sell+" Time: "+TimeToStr(Time[1]));
         printf("awaiting buy order..");
       }
      
  }
//+------------------------------------------------------------------+

// global variables

int    buyTicket  =   0;
int    sellTicket =   0;
double lot        =   0.01;
int    slipage    =   3;
int    magic      = 321;

Answer 1

比较值是什么意思？如我所见，您只比较 sell>0 和 buy>0。我的建议：在比较添加行
的正下方 Print(__LINE__," indicator value = "+DoubleToStr(sell,Digits)); 与 buy 相同。很可能，但当然我们这里没有 crystal 球，您的指标 returns 值（例如 100 或 1.16000）在一个缓冲区上，而 EMPTY_VALUE 在另一个缓冲区上。 EMPTY_VALUE 在 mql4 中是 2^31-1，所以它大于零。如果您将看到指标值为 2147483648.00000 或类似的值，- 您需要将 sell > 0 替换为 sell != EMPTY_VALUE 或合并。

iCustom() 缓冲区 - 如何从 MT4 中的自定义指标缓冲区获取值？

iCustom() buffer - how to get values from Custom Indicator buffers in MT4?

algorithmic-trading

mt4

metatrader4

mql4