Qt D-bus Error , How to use Qt D-Bus under windows ?

[Alex42]

Hello everyone,
I'm trying to run a Qt d-bus example (chat) on Windows. It compiles fine but I still getting this error below.
Cannot connect to the D-Bus session bus.
Please check your system settings and try again.
QEventDispatcherWin32::wakeUp: Failed to post a message (Handle de fenêtre non valide.)

I installed D-Bus on Windows through a ready made installer found in Google archives
https://code.google.com/archive/p/dbus-windows-installer/downloads
unfortunately I still getting the same error,

maybe someone can give me idea ,how to use Qt D-bus on windows ?
Or how to run dbus-daemon under windows ?

thank you very much for your help

[Alex42]

For more information , After reviewed this answer :

https://stackoverflow.com/questions/34342061/specify-dbus-session-address-on-windows
i still can't set up it under my Machine, i obtain this error:
thank you in advance for your help

[Alex42]

work in progress 

[idlefrog]

@Alex42 Have you tried this windows dbus port from freedesktop.org?
Never tried it. Might be better than that archived dbus code you found on google.

[mchinand]

Is there a reason why you want to use D-Bus on Windows?

[Alex42]

@mchinand I let you take a look at my question in another topic,here
https://forum.qt.io/topic/131878/how-to-use-signals-slots-to-make-inter-process-communication-in-qt

[Alex42]

@idlefrog yes i tried it, but i don't found more explanation about to run dbus-daemon on windows

[artwaw]

@Alex42 I strongly believe you'd have it done faster by setting up interprocess communication using TCP socket. But then again, it is Windows, so who knows.

[mchinand]

I agree with @artwaw. Check out the fortune example client and server.

[Alex42]

@mchinand, As you see, the problem it's not in the TCP/IP ( local server / socket ,shared memory ,QProcess class, QT Network ) , the problem it's how to run d-bus daemon on the windows , ( or how to use Qt D-Bus under Windows )

[jsulm]

@Alex42 said in Qt D-bus Error , How to use Qt D-Bus under windows ?:

the problem it's how to run d-bus daemon on the windows , ( or how to use Qt D-Bus under Windows )

This is outside of Qt. I suggest you also search on the Internet.

[sierdzio]

@Alex42 said in Qt D-bus Error , How to use Qt D-Bus under windows ?:

how to use Qt D-bus on windows ?

In your main.cpp, before any other Qt code, paste this:

int main(int argc, char *argv[])
{
#ifdef Q_OS_WINDOWS
    // This variable comes from dbus-env.bat
    qputenv("DBUS_SESSION_BUS_ADDRESS", "autolaunch:");
#endif

If you also have all the DBus files, DLLs etc. in the same directory as your .exe, it will work.