[PyQt] Interfacing with binary files: QDataStream issue

[Christopher Probst]

Hi,

I am exploring interfacing of files with QDataStream. But it does not seem
to work. To write to a file I do this:


file = QFile("file.dat")
color = QColor(Qt.red)

if file.open(QIODevice.WriteOnly):
   out =  QDataStream(file)
   out << color
   file.flush()
   file.close()

It looks as if that the data gets written to the file. It is the reading
where there is a problem:

file = QFile("file.dat")
color = QVariant()


if file.open(QIODevice.ReadOnly):
   out = QDataStream(file)
   out >> color
   print(color)
   print(color.value())

The output is:

<PyQt5.QtCore.QVariant object at 0x7f2cdd556f28>
None

What am I doing wrong?

Thanks,
Christopher
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