Questions from Beginners MQL5 MT5 MetaTrader 5 - page 475

[Alexandr Kovalchuk]

alph:
Can you tell me please, such a rate tester in real life? And is it good or bad result for the year with depo 3000$?

A strategy tester always lies, even though the simulation quality is 99.9%!

The only option to check the EA is to put it on a real-time VPN server on a demo account... Microsoft Azure gives almost a free server for a month, you need $1 to look it up on YouTube!...There are other VPN services, but they have 10 days maximum of free use.

[Vladimir Tkach]

Guys! Is it possible to programmatically prohibit manual trading in an EA?

[Aleksandr Prishenko]

Can you please tell me why this block removes all pending stop orders on any symbols set in the terminal, ignoring magic and _Symbol?

//--------------------------------------------------------------------------------------------------------------
//       Блок удаления отложенников по типу ордера
//--------------------------------------------------------------------------------------------------------------
int dell_ord_by_type(int type_ord, int _magic)
{   
   bool ticketmdf;
   int j;
  
   int orders=OrdersTotal();
   for(int i=0;i<orders;i++)//--- пробежим по списку ордеров
   {     
         if( OrderGetString(ORDER_SYMBOL) ==Symbol() && OrderGetInteger(ORDER_MAGIC)==_magic && OrderGetInteger(ORDER_TYPE) ==type_ord)   
         {  
            if(OrderGetInteger(ORDER_TYPE)==ORDER_TYPE_BUY_STOP || OrderGetInteger(ORDER_TYPE)==ORDER_TYPE_SELL_STOP)
            {       
               for(j=Appempts; j>0; j--) 
               { 
               //----------------------------------------------------------------------
               MqlTradeResult result={0}; 
            MqlTradeRequest request={0};
            request.order=OrderGetTicket(i);
            request.symbol = _Symbol;
            request.magic = _magic;
            request.action=TRADE_ACTION_REMOVE;
            ticketmdf=OrderSend(request,result);
            
                  if(ticketmdf==true)
                  {
                     Print("Успешно удалён ордер");
                     Sleep(2000);
                     break;                    
                  }
                  if(ticketmdf==false)                     
                  {
                     Print("Ошибка при удалении ордера # ",+GetLastError());
                     Sleep(7000);
                  }
               }                            
            }                       
         }                        
   }
   return(true);  
}

[[Deleted]]

Aleksandr Prishenko:

Can you please tell me why this block removes all pending stop orders on any symbols set in the terminal, ignoring magic and _Symbol?

1. the order has to be selected first;

2. The loop should be built from the last order, i.e. for( i = orders-1; i >= 0; i-- )

[Vladimir Karputov]

Aleksandr Prishenko:

Can you tell me why this unit deletes all pending stop orders on any symbols set in the terminal, ignoring magic and _Symbol?

I need to select the orders:

...
   int orders=OrdersTotal();
   for(int i=0;i<orders;i++)//--- пробежим по списку ордеров
     {
      if(OrderSelect(ххх,ххх,хххх)==true)
        {
         if(OrderGetString(ORDER_SYMBOL)==Symbol() && OrderGetInteger(ORDER_MAGIC)==_magic && OrderGetInteger(ORDER_TYPE)==type_ord)
           {
...

[Alexey Volchanskiy]

Vladimir Tkach:

Guys! Is it possible to programmatically prohibit manual trading in an EA?

Of course not.

[[Deleted]]

Karputov Vladimir:

You have to choose your orders:

The statement is correct. The implementation is not correct. Where do you get the ticket for OrderSelect()?

[Aleksandr Prishenko]

Is this the right thing to do?

Alexey Kozitsyn andKarputov Vladimir thanks for the tips!

int dell_ord_by_type(int type_ord, int _magic)
{   
   bool ticketmdf;
   int j;
 int orders=OrdersTotal();
   for(int i=0;i<orders;i++)//--- пробежим по списку ордеров
   { 
   ResetLastError();    
  ulong ticket=OrderGetTicket(i);
      if(ticket!=0)// если ордер успешно скопирован в кэш, работаем с ним  

      {      
         if( OrderGetString(ORDER_SYMBOL) ==_Symbol && OrderGetInteger(ORDER_MAGIC)==_magic && OrderGetInteger(ORDER_TYPE) ==type_ord)   
         {  
            if(OrderGetInteger(ORDER_TYPE)==ORDER_TYPE_BUY_STOP || OrderGetInteger(ORDER_TYPE)==ORDER_TYPE_SELL_STOP)
            {       
               for(j=Appempts; j>0; j--)
               { 

[Sergei Vladimirov]

You have written above: when orders are deleted, the cycle must be reversed. When an order is deleted, the indexes of the remaining orders are shifted.

int dell_ord_by_type(int type_ord, int _magic)
{
   ulong nOrderTicket = 0;
   
   for(int i = OrdersTotal() - 1; i >= 0; i--)   //--- пробежим по списку ордеров
   {
      nOrderTicket = OrderGetTicket(i);
        
      if(nOrderTicket > 0 && OrderGetString(ORDER_SYMBOL) == Symbol() && OrderGetInteger(ORDER_MAGIC) == _magic && OrderGetInteger(ORDER_TYPE) == type_ord)   
      {  
         if(OrderGetInteger(ORDER_TYPE) == ORDER_TYPE_BUY_STOP || OrderGetInteger(ORDER_TYPE) == ORDER_TYPE_SELL_STOP)
         {       
            // удаляем
         }
      }
   }
        
   return(0);  
}

[Sergei Vladimirov]

By the way, why do you declare a function as int if it returns true in your version, and always? )