Reading values from file

[scarr]

   string FileName = "c://report.txt";
   int handle = FileOpen(FileName, FILE_TXT|FILE_READ);
   if(handle!=INVALID_HANDLE){
      string MyString = FileReadString(handle);
      FileClose(handle);
   }

Can anyone spot why this code does not work, I get an invalid handle, the file does exist.

Steve

[DonFx]

scarr:

Can anyone spot why this code does not work, I get an invalid handle, the file does exist.

Steve

This file is not in the sandbox (MQL4/Files).

[Mladen Rakic]

scarr:

Can anyone spot why this code does not work, I get an invalid handle, the file does exist.

Steve

You can not open a file from that folder

Check this : https://www.mql5.com/en/docs/files/fileopen (especially this part : "For security reasons, work with files is strictly controlled in the MQL language. Files with which file operations are conducted using MQL means, cannot be outside the file sandbox."

[scarr]

Thanks guys your fantastic :-)

[scarr]

I'm back, Wow MT4 is not easy :-( well not for me anyway :-)

OK can anyone give me the path where I can read a file, I have tried loads of ones I think are right but they don't work :-(

The most recent filepath/name is this

C:\\Users\\scarter\\AppData\\Roaming\\MetaQuotes\\Terminal\\AA248EFC925E5BFD04BE26DB77C272A4\\MQL4\\Files\\values.txt

Steve

[William Roeder]

scarr: can anyone give me the path where I can read a file, C:\\Users\\scarter\\AppData\\Roaming\\MetaQuotes\\Terminal\\AA248EFC925E5BFD04BE26DB77C272A4\\MQL4\\Files\\values.txt	Don't use double backslash, except in code. character constants Everything before "values.txt" is the sandbox. Just use "values.txt" In the tester the file goes in Tester\Files not MQL4\Files. #2 still applies. Don't double post!

[scarr]

I still can't get it to work, this is the line of code. I tried single backslash but that would not compile.

   string FileName = "C:\\Users\\scarter\\AppData\\Roaming\\MetaQuotes\\Terminal\\AA248EFC925E5BFD04BE26DB77C272A4\\MQL4\\Files\\report.txt";

Steve

[Drazen Penic]

scarr:

I still can't get it to work, this is the line of code. I tried single backslash but that would not compile.

Steve

Did you read what whroeder1 wrote?
Specifically, point 2. from his answer?

string FileName = "report.txt";