> On 20 Nov 2020, at 03:42, mirabilos <t.gla...@tarent.de> wrote: > > On Thu, 19 Nov 2020, Thiago Macieira wrote: > >> Then pass nothing. > > That reportedly causes problems with kwallet. > >> If the application is run non-interactively and possibly >> without GUI, then it doesn't have access window IDs. > > It does run with a GUI, but the only UI elements it has are those > rendered by the kwallet service (things like the unlock prompt); > it requires a GUI display even if itself only uses stdio and command > line arguments. > >> What application are you launching? Because KWallet is a D-Bus service and >> kwalletmanager doesn't require window IDs. > > http://www.mirbsd.org/cvs.cgi/contrib/hosted/tg/code/kwalletcli/kwif5.cc?rev=1.2 > > Search for openWallet there. > > The window ID was added by the person who ported this to KDE 5; > apparently, this is necessary now. > > Thanks, > //mirabilos
In Qt 6 there is no more Qt API to get the X11 root window for a display (also note that QDesktopWidget as a whole is gone). So, you either have to go native if you rely on X11 specific data structures (which the code does anyway, in verifying that there is a DISPLAY environment variable), or pass a pointer to (or index of) a QScreen if you want to place a UI on a specific display. Volker _______________________________________________ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest