Errors, bugs, questions - page 2434

[fxsaber]

How do I know the file name from the handle?

FileGetString is missing.

[Igor Makanu]

fxsaber:

How do I know the file name from the handle?

FileGetString is missing.

I don't think you can, usually handles, descriptors and other descriptors are virtual tables of integers, which are bound by OS or program environment to specific physical events/drivers/windows...

I've recently started to work with halves using SB, it's pretty handy and here's a ready-made solution for your casehttps://www.mql5.com/ru/docs/standardlibrary/fileoperations/cfile

[Slava]

fxsaber:

How do I know the file name from the handle?

FileGetString is missing.

No way

[fxsaber]

Igor Makanu:

I don't think you can, usually handles, descriptors and other descriptors are virtual tables of integers, which are bound by OS or program environment to specific physical events/drivers/windows...

I've been using file management with SB for a while now, it's pretty handy and here's a ready-made solution for your casehttps://www.mql5.com/ru/docs/standardlibrary/fileoperations/cfile

It's clear that you can save the file name. But still it looks strange that you can't do the basic things.

Slava:
No way

It would be good if you could.

[Igor Makanu]

fxsaber:

It is clear that it is possible to save the file name. But it still seems strange that you can't do the elementary thing.

I think you need to force yourself to use ready-made solutions, at least I am on this path, here in 5 minutes I have written OHLC to the file

#property copyright "Copyright 2019, IgorM"
#property link      "https://www.mql5.com/ru/users/igorm"
#property version   "1.00"
#property strict
#property  show_inputs
input string FName="tst";
#include <Files\FileTxt.mqh>

CFileTxt *FOut;
//+------------------------------------------------------------------+
//| Script program start function                                    |
//+------------------------------------------------------------------+
void OnStart()
  {
   FOut=new CFileTxt();
   string sname=FName+"_"+_Symbol+"_"+EnumToString((ENUM_TIMEFRAMES)_Period)+".csv";
   FOut.Open(sname,FILE_WRITE|FILE_TXT);
   Print("Open file");
   Print("File name = ",FOut.FileName());
   int count=0;
   for(int i=Bars-1;i>=0;i--)
     {
      string s=TimeToStr(Time[i])+";"+DoubleToStr(Open[i],_Digits)+";"+DoubleToStr(High[i],_Digits)+";"+DoubleToStr(Low[i],_Digits)+";"+DoubleToStr(Close[i],_Digits)+"\n";
      FOut.WriteString(s);
      count++;
     }
   Print("Write ",count," bars");
   FOut.Flush();
   FOut.Close();
   delete FOut;
  }

when usingCFileTxt class,you don't need to think where to get the file properties - everything is available throughout the program execution

[fxsaber]

Igor Makanu:

I think you need to force yourself to use ready-made solutions, at least I'm on this path, here's how I made an OHLC entry to a file in 5 minutes

You have done it.

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Bugs, bugs, questions

fxsaber, 2019.04.17 14:00

Clearly you can save the file name. But it still looks strange that you can't do the elementary thing.

[Igor Makanu]

fxsaber:

You have done it.

Yes I know, but you just have to try to understand the developers' ideology here - they have quite a few ready-made solutions in SB,

[Slava]

fxsaber:

It is clear that it is possible to save the file name. But it still seems strange that you can't do the elementary thing.

And it would be good.

What for?

[fxsaber]

Igor Makanu:

Yes I know, but here you just have to try to understand the developers' ideology - they have quite a lot of ready-made solutions in SB,

It's certainly understandable. But that's not what I was talking about.

[fxsaber]

Slava:

Why?

I'm debugging someone else's code, which is transferring handles from some methods to other functions.

I want to unset a specific handle, which is now used in the stop line - what is the file? And it's really hard to do that.