Using layershell-qt

[Ralf Van Bogaert]

Hi,

I am developing a Qt6-based application, that needs to display a QWindow as
a desktop panel on Wayland compositors - so at the edge of the screen, and
never overlapped by maximized windows.

To do this, I need to use the layershell-qt
<https://invent.kde.org/plasma/layer-shell-qt> library.

If I compile the library as-is, it uses my system's Qt5 installation. The
included test program works fine.

However I need to compile the library for use with Qt6. If I do this, the
test program doesn't display it's window anymore but prints the following
output instead:



*qt.qpa.wayland: No shell integration named "layer-shell"
foundqt.qpa.wayland: Loading shell integration failed.qt.qpa.wayland:
Attempted to load the following shells QList("layer-shell")*

The same goes for my program. The function

*LayerShellQt::Shell::useLayerShell()*

needs to be ran before creating any windows, which executes







*void Shell::useLayerShell(){    const bool ret =
qputenv("QT_WAYLAND_SHELL_INTEGRATION", "layer-shell");    if (!ret) {
  qCDebug(LAYERSHELLQT) << "Unable to set
QT_WAYLAND_SHELL_INTEGRATION=layer-shell";    }}*

Can anyone help?

Thanks in advance!
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