QT D BUS CODE THAT REPRESENTS

Qt D Bus Code That Represents

This class is useful for dynamic access to remote objects: that is, when you do not have a generated code that represents the remote interface.Qt D-Bus allows applications to send messages to each other using D-Bus. This page lists examples which specifically use D-Bus for inter-process communication (IPC).QDBusConnection dbConnection = QDBusConnection::systemBus () , '/org/freedesktop/timedate1/set-time/Manager', 'org.freedesktop.timedate1.set-time.Manager'QDebug () << 'DBus interface validation: ' << dbInterface.isValid () QDBusMessage dbMessage = dbInterface.call ('SetTime', QDateTime::currentDateTime ().toMSecsSinceEpoch () * 1000, false, false) QDebug () << 'DBus message: ' << dbMessage But I've got: DBus interface validation: false. Qt's primary feature is its rich set of widgets that provide standard GUI functionality. This package contains qdbus, a command-line tool interface to D-Bus that uses the QtDBus library.I try to set system time using Qt through DBus in the following way: #include Constructs a new D-Bus variant. Void QDBusVariant:: setVariant (const QVariant &variant) Assigns the value of the given Qt variant to this D-Bus variant. Void QDBusVariant:: swap (QDBusVariant &other) Swaps this QDBusVariant instance with other.

it initialises its base class ( QDBusAbstractAdaptor) with the parent object it is related to. Arg(app - >applicationName()) Void focusChangedSlot( QWidget * , QWidget *now)The code above would create an interface that could be represented more or less in the following canonical representation:MyInterfaceAdaptor( QApplication *application)Connect(application , SIGNAL(aboutToQuit()) , SIGNAL(aboutToQuit()) Class MainApplicationAdaptor: public QDBusAbstractAdaptorQ_CLASSINFO( 'D-Bus Interface' , 'org.kde.DBus.MainApplication')Q_PROPERTY( QString caption READ caption WRITE setCaption)Q_PROPERTY( QString organizationName READ organizationName)Q_PROPERTY( QString organizationDomain READ organizationDomain)MainApplicationAdaptor( QApplication *application): QDBusAbstractAdaptor(application) , app(application)Connect(application , SIGNAL(aboutToQuit()) , SIGNAL(aboutToQuit())) Connect(application , SIGNAL(focusChanged( QWidget * , QWidget *)) ,SLOT(focusChangedSlot( QWidget * , QWidget *))) Return QString( '') // must not return a null QStringVoid setCaption( const QString &newCaption)App - >mainWindow() - >setCaption(newCaption) Return QString( '/%1/mainwindow'). Returns this D-Bus variant as a QVariant. QtDBus is a Unix-only library that uses the D-Bus protocol for.

it connects the application's signal focusChanged to a private slot to do some further processing before emitting a D-Bus signal.Note that there is no destructor in the example. it connects the application's signal aboutToQuit to its own signal aboutToQuit. Note that it would be possible to access the same object using the QDBusAbstractAdaptor::object() function, but it would be necessary to use static_cast to properly access the methods in QApplication that are not part of QObject.

Note that this method could have also been written: void mainWindowObject( QString &path). mainWindowObject: this method takes no input parameter, but returns one string output argument, containing the path to the main window object (if the application has a main window), or an empty string if it has no main window. reparseConfiguration: this simple method, with no input or output arguments simply relays the call to the application's reparseConfiguration member function.