Unable to generate MD5 of a QString

[Qjay]

I am facing problem in generating an MD5 of a QString

QString hash_me = QString(QCryptographicHash::hash((png_links),QCryptographicHash::Md5).toHex());
            png_links = hash_me ;

error that i am getting is :

 error: no matching function for call to 'QCryptographicHash::hash(QString&, QCryptographicHash::Algorithm)'
             QString hash_me = QString(QCryptographicHash::hash((png_links),QCryptographicHash::Md5).toHex());
                                                                                                   ^

[Joel Bodenmann]

The QCryptographicHash::hash() method doesn't operate on QString, it operates on QByteArray:

QByteArray QCryptographicHash::hash(const QByteArray &data, Algorithm method)

Therefore, you have to convert your QString to a QByteArray first. The QString class provides several methods for that such as:

• QByteArray QString::toLatin1() const
• QByteArray QString::toLocal8Bit() const
• QByteArray QString::toUtf8() const

As the method names indicate you will loose portability. You have to know which encoding you want to use.

[Qjay]

Thanks !! I just figured it out after reading Docs !!

Thanks for replying (y)