Common AppData folder error with special character

alecs26

Hello,

For my program (Qt MinGW 5.7 on Windows), I use a writable folder to store user parameters (to read and write).
I use "QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);"

It works on many computers with different Windows versions (I tried on 10 computers). However, with one computer, my program is not able to find the user's parameters. I investigated and found out that the username has a special character.
The username is Andrée-Anne (a French name).
The parameter location is "C:\Users\Andrée-Anne\AppData\Roamaing\MyProgram".

However, the result of
"qDebug() << QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);" is
"C:\Users\AndreÚ-Anne\AppData\Roamaing\MyProgram".

The character " é " is replaced by " Ú ". I guess this is why the program does not find the parameters.

Any idea of what I could do ?? I know it's not a good idea to place special character anywhere but I must support my users who chose that...

Thank you very much,

Alex

jsulm

@alecs26 Can you show the code where you use the path returned by QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);?
The wrong output with qDebug could be an issue with console.

alecs26

@jsulm thank you for your answer. Here is an example of write and read. They both work with every other computer but fail on this one.

QString pathparam;
pathparam = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + "/ParamBasic.txt";

std::ofstream myfile;
myfile.open(pathparam.toStdString(), std::ofstream::out | std::ofstream::trunc);
myfile << p1 ;
myfile.close();

and

QString appparamfolderloc=QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + "/ParamBasic.txt";
std::ifstream myfile(appparamfolderloc.toStdString());
    if (myfile.is_open())
    {
        while (getline(myfile, line))
        {
            std::stringstream os(line);
            os >> line2;
        }
    }
myfile.close();

Thanks !

Alex

jsulm

@alecs26 Why don't you use QFile?
The problem could be pathparam.toStdString().
Try with QFile without calling pathparam.toStdString() as QFile accepts QString.

alecs26

@jsulm Thank you so so so much !! It works !
I did not use QFile because I recycled a VStudio code for processing text file and I was too lazy to convert it in QFile. I should have done it !

Thanks again,

Alex