How to open a single pending order when I need to open one pending orders - Expert Advisors and Automated Trading

Alexey Volchanskiy 2017.04.06 22:50 #7401

fxsaber:
You asked without perversions. And if you did, then...

That's why it's like this.

double GetPositionCommission( void )
{
  double Commission = ::PositionGetDouble(POSITION_COMMISSION);

  // На случай, если POSITION_COMMISSION не работает
  if (Commission == 0)
  {
    const ulong Ticket = MT4ORDERS::GetPositionDealIn();

    if (Ticket > 0)
    {
      const double LotsIn = ::HistoryDealGetDouble(Ticket, DEAL_VOLUME);

      if (LotsIn > 0)
        Commission = ::HistoryDealGetDouble(Ticket, DEAL_COMMISSION) * ::PositionGetDouble(POSITION_VOLUME) / LotsIn;
    }
  }

  return(Commission);
}

Or

I realise the post is old, but it just now hit me with a splinter.

This bit here is not correct, the commission in forex can be zero

// На случай, если POSITION_COMMISSION не работает
  if (Commission == 0)

Maksym Moroz 2017.04.07 04:22 #7402

Artyom Trishkin:
ObjectGetValueByShift() (MT4 only), ObjectGetValueByTime() (MT4, MT5)

Thank you

fxsaber 2017.04.07 04:24 #7403

Alexey Volchanskiy:

I realise the post is old, but it just now hit me with a splinter.

This bit here is not correct, the commission in forex can be zero

How is it incorrect?

Klimenko_a_e 2017.04.09 22:08 #7404

Problem with copy constructor in MQL5

The dynamic array this.arr, in the copy constructor, is seen by the debugger as one-dimensional.

As a result, the size of ob2.arr equals 0 in the output.

Why?

The same fragment works correctly in MQL4.

MT5 Editor

MetaEditor 5.0 1578

MT4 editor

MetaEditor 5.0 1562

class obj
  {
public:
   double            arr[][2];
                     obj(){}
                     obj(obj &o)
     {
      ArrayCopy(this.arr,o.arr);
     }
   obj operator=(obj &o)
     {
      ArrayCopy(this.arr,o.arr);
      return &this;
     }
  };
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
obj Copy(obj &o)
  {
   return o;
  };
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void OnStart()
  {
//---
   obj ob1,ob2;
   ArrayResize(ob1.arr,3);
   ob2=Copy(ob1);
   bool stop=true;
  }

Errors, bugs, questions Any questions from newcomers mt4 on mt5

fxsaber 2017.04.10 04:39 #7405

Klimenko_a_e:

The result is that size ob2.arr is 0 in the output.

Why?

obj* Copy(obj &o)
  {
   return & o;
  };

Otherwise you are creating a new object.

   void operator=(obj &o)
     {
      ArrayCopy(this.arr,o.arr);
      return; // &this;
     }

Otherwise, unnecessary things happen.

I doubt that your code worked correctly in MQL4.

Akinak 2017.04.10 13:10 #7406

Good day! Can you please tell me how to open a single pending order?

How do I stop the loop if I need to open one pending order when the bay is open???

I can open a bunch of them until the deposit runs out!

I do not know how to open one pending order.

Questions from Beginners MQL4 Questions from a "dummy" [ARCHIVE]Any rookie question, so

Vladislav Andruschenko 2017.04.10 13:12 #7407

Akinak:

Good day! Can you please tell me how to open a single pending order?

How do I stop the loop if I need to open one pending order when the bay is open???

I can open a bunch of them until the deposit runs out!

Thanks in advance!

First you need to find out "who he is".

Akinak 2017.04.10 14:18 #7408

Vladislav Andruschenko:

First you have to find out "who he is".

Vladislav Andruschenko:

first you need to find out "who he is".

for(int i=0; i<OrdersTotal();i++)

{

if(OrderSelect(i,SELECT_BY_POS))

if(OrderSymbol()==Symbol())

if(OrderMagicNumber()==Magic)

if(b>0)

{

int tak=OrderSend(Symbol(),OP_SELLSTOP,Lots_work,SOPrase,Slip,0,0,",Magic,0,clrRed);

if(tak>0)

Print("SELLSTOP Ok");

else

Print("SELLSTOP Error");

}

if(s>0)

{

OrderSend(Symbol(),OP_BUYSTOP,Lots_work,BOPrase,Slip,0,0,",Magic,0,clrBlue);

if(tik>0)

Print("BUYSTOP Ok");

else

Print("BUYSTOP Error");

}

MT4 coding help please: [WARNING CLOSED!] Any newbie Pending orders

Vladislav Andruschenko 2017.04.10 17:45 #7409

Well, what you do in the cycle is this:

you open a position - you open an order, the number of positions is added, the cycle repeats - to infinity.

int OrderSTotal=OrdersTotal();
for(int i=0; i<OrderSTotal;i++)
  {
   if(OrderSelect(i,SELECT_BY_POS))
      if(OrderSymbol()==Symbol())
         if(OrderMagicNumber()==Magic)

           {
            if(b>0)
              {
               int tak=OrderSend(Symbol(),OP_SELLSTOP,Lots_work,SOPrase,Slip,0,0,"",Magic,0,clrRed);
               if(tak>0)
                  Print("SELLSTOP  Ok");
               else
                  Print("SELLSTOP  Error");
              }

            if(s>0)
              {
                int tik=OrderSend(Symbol(),OP_BUYSTOP,Lots_work,BOPrase,Slip,0,0,"",Magic,0,clrBlue);
               if(tik>0)
                  Print("BUYSTOP  Ok");
               else
                  Print("BUYSTOP  Error");
              }
           }
  }
//+------------------------------------------------------------------+

You need to know what b and s are

Klimenko_a_e 2017.04.10 17:58 #7410

fxsaber:

Otherwise you are creating a new object.

Otherwise unnecessary things happen.

I doubt your code worked correctly in MQL4.

In real code - the function returns an object.

I think the copy constructor should create a temporary copy in this case.

The code works correctly in MQL5 build 1545.

In the new build, the copy constructor cannot resize even a one-dimensional array: Error 4007.

This is not correct in my opinion.

interface as a return Constructor in dynamic multi-dimensional Questions on OOP in

Questions from Beginners MQL5 MT5 MetaTrader 5 - page 741