[PyQt] Storing a QFlags in a QSettings

[Jerome Vuarand]

Hi,

I'm currently trying to modify an existing PyQt app so that it stores
the windowState of its main window when it exits. The information is
retrieved with the QWidget::windowState method, and restored with the
QWidget::setWindowState method. The state itself it an object of type
WindowStates, which is a QFlags.

When trying to save it with QSettings::setValue, I get the following
errors. When I try:

    settings.setValue("windowstate", self.windowState())

I get:

    TypeError: argument 2 of QSettings.setValue() has an invalid type

When I try:

    settings.setValue("windowstate", QtCore.QVariant(self.windowState()))

I get:

    QVariant::save: unable to save type 262.

Finally I realized there is a __int__ method in the WindowStates
object, which I guess is mapped to the C++ "operator int" method.
However, while I can save that value, I cannot rebuild the
WindowStates object from an int. There is no constructor taking an int
as parameter in QFlags.

So what is the correct way to save and restore a windowState ?

Note that I'm a noob at both Qt and Python.

Jérôme.