Hi,
According to the documentation, where in Qt4/X11 one could create a "foreign"
QWidget with QWidget::create(WId id, ...), in Qt5 one has to do something like
externalWindow = QWindow::fromWinId(id);
if (externalWindow) {
externalParent = externalWindow->parent();
theWidget = QWidget::createWindowContainer(externalWindow);
}
(with externalParent required to reparent externalWindow before destroying the
container).
Except that when I do this, I get 2 windows (neither of which will show my
content), and the original window gets resized even when I take care not to ask
for that (not directly at least).
I also see a series of
QWidget::paintEngine: Should no longer be called
QPainter::begin: Paint device returned engine == 0, type: 1
on the terminal which I don't see if I just create a new QWidget .
I guess I must be missing something?
Thanks,
R.
PS: goal here is to convert an old KDE4 screensaver to Qt5 - a cute project for
a steamy sunday afternoon ;)
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