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Problem with dbus on windows 7

  • Hi there and thx for reading and answering if you can.

    I successfully compiled qt 5.4 and dbus 1.8 on windows 7 with mingw-64. The Qt5DBus.dll has been compiled and installed.with the rest of the qt stuff.

    I can launch the dbus daemon with dbus-launch, connect to it with dbus-monitor, however, neither qdbusviewer nor qdbus can connect to the daemon. That being said, qdbus even returns:

    Could not connect to D-Bus server: Unable to load dbus librarries.
    However, the libdbus-1.dll is perfectly accessible.

    What's wrong ? Any indea ?

  • Lifetime Qt Champion


    What do you mean by "perfectly accessible" ? In the same folder os qdbusviewer ?

  • yes, and I also tested another <listen> field in the dbus session.conf with


    but no way. It doesn't work

  • Found something !!!

    In the file qdbus_symbols.cpp, from the qt 5.4 sources, go to line 88 and change:


    @#ifdef Q_OS_WIN

    I dunno why QLibrary::setFileName() is unable to load the correct dll

  • Lifetime Qt Champion

    Good catch !

    However you shouldn't need the .dll suffix

  • I don't even need to modify the qt source.

    Just rename libdbus-1.dll to dbus-1.dll . That's all :-)

    This small trick could be useful to other devels, since I'm not the only one to strive to port a linux app to win.

  • Lifetime Qt Champion

    Then you should also update the thread title prepending [solved] so other forum users may know a solution has been found :)

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