Providing relative file path

Question

I have text files in my resource file and I'd like to be able to provide a path for this file to std::ifstream. Neither :\file_name.txt nor ..\file_name.txt works.

Does anyone know how to fix it?

possible duplicate of [Relative path for fstream](http://stackoverflow.com/questions/8068921/relative-path-for-fstream) — Alok Save, Dec 11 '11 at 11:10
@Als: I don't think so. Qt resources are not filesystem objects, they're bundled inside the executable at link time. — Mat, Dec 11 '11 at 11:11
@user336635: you are referring to Qt resources, compiled with `qrc`, right? — Mat, Dec 11 '11 at 11:13
@Als but there wasn't satisfying answer given to yes, similar question. It would be nice if the question could actually get correct answer. — user336635, Dec 11 '11 at 11:13

Luca Carlon · Answer 1 · 2011-12-11T11:36:10.850

Qt resource files are not filesystem files. Those files are loaded in memory as static char arrays. You can see for yourself looking in your build directory for qrc_*.cpp files. You can get data from there if you want, or you might want to use QTextStream for reading those, using the QIODevice constructor with a QFile.

You don't specify what you want to do exactly, but this is a sample that reads what is inside the file:

#include <QtCore/QCoreApplication>
#include <QTextStream>
#include <QFile>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QFile file(":/test.txt");
    QTextStream stream(&file);
    if (!file.open(QIODevice::ReadOnly)) {
       qFatal("Failed to open file.");
       return -1;
    }
    QString text = stream.readAll();
    if (text.isNull()) {
       qDebug("Failed to read file.");
       return -1;
    }
    qDebug("File content is: %s. Bye bye.", qPrintable(text));
    return 0;
}

Providing relative file path

1 Answers1