[ARCHIVE!] Any rookie question, so as not to clutter up the forum. Professionals, don't pass by. Can't go anywhere without you - 4. - page 438

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Gas up the car and it will start. Moved this EA to the chart. Turned it on. Selected EA properties then allowed the EA to trade.
 
Crash:
Fill up the car and it will start. Moved this EA to the chart. I have enabled it. Selected Expert Advisors properties then allow the EA to trade.

Still won't start :/


Is your advisor's face smiling or sad?

What do you see in the log?

 
I'm not afraid of losing). I'm just trying out an Expert Advisor, they say it works well. But it does not give signals and does not trade automatically.
 
Where can I see the magazine?
 
pako:

well then magik = TimeCurrent();

on any other magik pos.

I wonder if this means they will be different in time? And each will have a different number?! That's original! Thanks, I'll try it now!

But the thing is, I have to close one at a time. How do I specify the magician, because the time has already passed, and I give the time a different one, so nothing will close.

I'll try the tickets.

 
borilunad:

Lot = NormalizeDouble(OrderLots()/2,Digits);
Can you explain how to do this in a normal way?
 
borilunad:

I wonder if that means there will be different times? And each one will have a different number?! That's original! Thanks, I'll try it now!

But the thing is, I have to close one at a time. How do I specify the magician, because the time has already passed, and I give the time a different one, so nothing will close.

I'll try the tickets.

magik = TimeCurrent() = OrderOpenTime()

 
kostural:
can you explain how to do this in a normal way?

It will close 1/2 of the lot. If OrderLots() = 0.03, then it will close 0.02 and remain 0.01. And put the resulting Lot in OrderClose() in its place after OrderTicket(). Is it clear now?
 

Good afternoon. PEOPLE, ANSWER THE QUESTION PLEASE (5th time posting). Question about a file index... In my MQL4 book, found at MQL4.community, in the "Standard Functions" section, there is an example of the script "File Operations", which is intended for reading data from a file and displaying graphical objects in a symbol window:

//--------------------------------------------------------------------
// timetablenews.mq4
// Предназначен для использования в качестве примера в учебнике MQL4.
//--------------------------------------------------------------- 1 --
int start()                            // Спец. функция start
  {
//--------------------------------------------------------------- 2 --
   int Handle,                         // Файловый описатель
       Stl;                            // Стиль вертикальной линии
   string File_Name="News.csv",        // Имя файла
          Obj_Name,                    // Bмя объекта
          Instr,                       // Название валюты
          One,Two,                     // 1я и 2я чать названия инстр.
          Text,                        // Текст описания события
          Str_DtTm;                    // Дата и время события(строка)
   datetime Dat_DtTm;                  // Дата и время события(дата)
   color Col;                          // Цвет вертикальной линии
//--------------------------------------------------------------- 3 --
   Handle=FileOpen(File_Name,FILE_CSV|FILE_READ,";");// Открытие файла
   if(Handle<0)                        // Неудача при открытии файла
     {
      if(GetLastError()==4103)         // Если файла не существует,..
         Alert("Нет файла с именем ",File_Name);//.. извещаем трейдера 
      else                             // При любой другой ошибке..
         Alert("Ошибка при открытии файла ",File_Name);//..такое сообщ
      PlaySound("Bzrrr.wav");          // Звуковое сопровождение
      return;                          // Выход из start()      
     }
//--------------------------------------------------------------- 4 --
   while(FileIsEnding(Handle)==false)// До тех пор, пока файловый ..
     {                                // ..указатель не в конце файла
      //--------------------------------------------------------- 5 --
      Str_DtTm =FileReadString(Handle);// Дата и время события(дата)
      Text     =FileReadString(Handle);// Текст описания события
      if(FileIsEnding(Handle)==true)   // Файловый указатель в конце
         break;                        // Выход из чтения и рисования
      //--------------------------------------------------------- 6 --
      Dat_DtTm =StrToTime(Str_DtTm);   // Преобразование типа данных
      Instr    =StringSubstr(Text,0,3);// Извлекаем первые 3 символа
      One=StringSubstr(Symbol(),0,3);// Извлекаем первые 3 символа
      Two=StringSubstr(Symbol(),3,3);// Извлекаем вторые 3 символа
      Stl=STYLE_DOT;                   // Для всех - стиль пунктир
      Col=DarkOrange;                  // Для всех - цвет такой
      if(Instr==One || Instr==Two)     // А для событий по нашему ..
        {                             // .. финансовому инструменту..
         Stl=STYLE_SOLID;              // .. такой стиль..
         Col=Red;                      // .. и такой цвет верт. линии
        }
      //--------------------------------------------------------- 7 --
      Obj_Name="News_Line  "+Str_DtTm;     // Имя объекта
      ObjectCreate(Obj_Name,OBJ_VLINE,0,Dat_DtTm,0);//Создаем объект..
      ObjectSet(Obj_Name,OBJPROP_COLOR, Col);       // ..и его цвет,..
      ObjectSet(Obj_Name,OBJPROP_STYLE, Stl);       // ..стиль..
      ObjectSetText(Obj_Name,Text,10);              // ..и описание 
     }
//--------------------------------------------------------------- 8 --
   FileClose( Handle );                // Закрываем файл
   PlaySound("bulk.wav");              // Звуковое сопровождение
   WindowRedraw();                     // Перерисовываем объекты
   return;                             // Выход из start()
  }
//--------------------------------------------------------------- 9 --

Below, when analyzing this script in the Book on MQL4, the following phrase is given: "if the specified check (the last 2 lines in block 5-6) is removed, an extra object will be created at runtime. And only after that, the while loop's termination condition will trigger and control will be passed to block 8-9".

Do I understand it correctly? A file pointer is NOT INFLOWED BY TEXT SIGNS (for example: text| where | is a file pointer), but is a pointer WITH EXPRESSION, for example: text where k is the "to" character, k-th is highlighted by a file pointer. This explains the need for strings (see p.164):

      if(FileIsEnding(Handle)==true)   // Файловый указатель в конце
         break;                        // Выход из чтения и рисования
      //--------------------------------------------------------- 6 --

Indeed. On penultimate iteration, after creating LAST object

2007.05.11 18:30;JPY

the file pointer is at the position of the last object, i.e:

2007.05.11 18:30;JPY IndustrialManufacture

(where o is the "o" character, k is the file index). Then when passing control to while statement header, FileIsEnding(handle) function will obviously return true, because file pointer is NOT at end of file, but at LAST character of that file. Then when the first two lines are executed, the file pointer will move to empty space and if there are no lines

      if(FileIsEnding(Handle)==true)   // Файловый указатель в конце
         break;                        // Выход из чтения и рисования
      //--------------------------------------------------------- 6 --

the script will create a graphic (i.e. a line) with an empty description and a time coordinate that corresponds to 0. This is what is meant in the phrase: "if the specified check (the last 2 lines in block 5-6) is removed, then an extra object will be created at runtime. "

Question: do I understand correctly:

a) the definition of a file pointer;

b) the meaning of the phrase "If the specified check (the last 2 lines in block 5-6) is deleted, then an extra object will be created at program execution.And only after that the while loop's end condition will be triggered and control will be passed to block 8-9".

P.S. In order not to litter the forum, thank you in advance for your answer

 
ilunga:

Still won't start :/


Is the councillor's face smiling or sad?

What's in the magazine?

Where can I see the magazine?
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