I did try to open the buffer (and close it).
QByteArray ba;
QBuffer bu(&ba);
//bu.open(QBuffer::ReadWrite);
bu.open(QIODevice::WriteOnly);
image.save(&bu, "PNG");
//bu.close();
//QString imgBase64 = ba.toBase64();
QString imgBase64 = QString::fromLatin1(ba.toBase64().data());
qDebug() << "image base64: " << imgBase64;
qDebug can't show the base64 string for some reason because
std::cout << imgBase64.toStdString();
prints the correct base64 string. I did try serval version of code before i posted here. If i read the png from file and get a base64 from it, the same happens without the buffer. qDebug won't print out the base64 string.
QByteArray ba;
ba = file2.readAll().toBase64();
qDebug() << "base64 from png: " << ba.data(); // nothing
std::cout << ba.data(); // works
I wonder why.
