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Extended DBus for Qt

Qt provides several classes for DBus communication.

Extended DBus for Qt provides the following main additional features to the QDBusAbstractInterface class:

  • DBus provides a Properties Interface which specifies a PropertiesChanged signal whose reception is not implemented in the properties bridge by QtDBus. Extended DBus for Qt provides it.
  • The DBus Properties Interface also specifies a GetAll method not implemented in the standard QtDBus. Extended DBus for Qt provides it.
  • QtDBus properties mechanism is completely synchronous. Extended DBus for Qt provides an additional asynchronous alternative.
  • An alternative and very simple cache mechanism is also implemented in Extended DBus for Qt so the DBus traffic is reduced to the minimum.

Installation:

$ qmake && make && make install

Examples:

For a working example of Extended DBus for Qt check the MPRIS for Qt project.

TO-DO:

  • QtDBus provides the qdbuscpp2xml and qdbusxml2cpp tools for automagically generate a XML DBus specification file from the C++ code or the other way around, to generate C++ code from a XML DBus specification file. An adaption of such tools would be needed so we can also generate those files from Extended DBus for Qt.