I need to include QtPlatformHeaders/QWindowsWindowFunctions

[Arist0tle]

Hi,

I'm using Qt 6.0.2 in connection with Visual Studio 2019 and I don't know how to include QWindowsWindowFunctions (I need this to solve a OpenGL issue, see https://doc.qt.io/qt-6/windows-issues.html).
I tried #include <QtPlatformHeaders/QWindowsWindowFunctions> but it didn't work.
I couldn't even find a directory QtPlatformHeaders somewhere in the Qt folder...

Do I need to install something else?

Thanks for any help!

[Christian Ehrlicher]

Looks like it's not yet ported - stay at 5.15 until then.

[SGaist]

Hi and welcome to devnet,

It might also have been moved, see this blog post.

[Arist0tle]

Thank you very much for your answers so far!
Yes, it seems that QWindowsWindowFunctions::setHasBorderInFullScreen has been moved to QWindowsWindow.
I've been trying to get

using namespace QNativeInterface::Private;
if (auto *windowsWindow = dynamic_cast<QWindowsWindow*>(window->handle()))
    windowsWindow->setHasBorderInFullScreen(true);
[...]

to work (from the blog) but I don't know exactly how:

• The class QWindowsWindow is defined in QtGui/6.0.2/QtGui/qpa/qplatformwindow_p.h. It seems a bit strange to include this file?
• Do you know how I can get window->handle() from QMainWindow?

Many thank again :)

[Arist0tle]

For my actual problem (QMenu not visible when using OpenGL in QMainWindow with full screen) I found workarounds described in https://bugreports.qt.io/browse/QTBUG-41309.

So I think I can close this thread, because as @Christian-Ehrlicher wrote, QWindowsWindowFunctions doesn`t seem to be ported properly yet.

[NeerajUsadadiya]

@SGaist Thank You. This helps and this is what I was searching for.