.exists method returns false for the files stored in C: [Windows]

[djalla]

Hi all, my problem is when I try to check the existence of a file stored in the C: (ex: C:\\myFile.bin), .exist method return false while the file is already exist.

What did I notice is that the method returns false when :

• The file name is composed with one letter, like : a.bin, k.bin, f.bin,..
• The file name is : Ntest.

When I change the file name to another name other than the previous examples, the method returns true , and this seems so weird.

PS:

• The files which cannot be detected, become detectable outside the C: or when they are located inside a C: folder (ex: C:\\folderName\fileName.bin).
• I am working with bin files.
• I don't have the admin rights in the env where my code is running.

The code :

QString qFilePath = QString::fromWCharArray(filePath);

    if(!QFileInfo(qFilePath).exists()){
        return ERROR_NO_FILE;
    }

[Christian Ehrlicher]

This example works fine for me with Qt 6.5 on windows 10:

#include <QtCore>
int main(int argc, char** argv)
{
    QCoreApplication app(argc, argv);
    if (QFile("C:\\t.bin").exists()) {
        qDebug() << "exists";
    }
    else {
        qDebug() << "Does not exist";
    }
    return 0;
}

What Qt version and OS do you use. Please also check it with my simple example instead in your code.

[djalla]

Thanks @Christian-Ehrlicher for your time, your code works fine, and mine as well; the problem was with the file path sent to the API (frontend side).