QtDBus Qt Creator

I am currently using Qt Creator 1.3 to develop my project. But, I am having an issue with a QDBusAbstractAdaptor. It will build the project and run, and it will register the object with the session bus, and everything looks like it is working great.

Using the qdbusviewer I check the object that is on the session bus, it exists but my "D-Bus Interface" does not exists for the object. Only:

org.freedesktop.DBus.Properties
org.freedesktop.DBus.Interospectable
(my dbus interface) <-- MISSING

I am confused on what needs to be done for my interface to be exported on the dbus. Do I need to add something to be project file for qt creator to build the interface. Code is below:

Code:

---

QT += sql
QT += dbus
QT -= gui
TARGET = configd
CONFIG += dbus
CONFIG += console
CONFIG -= app_bundle
TEMPLATE = app
SOURCES += main.cpp \
    configdatabase.cpp \
    dbusconfig.cpp \
    watchconfig.cpp
HEADERS += configdatabase.h \
    dbusconfig.h \
    watchconfig.h

---

Code:

---

#ifndef DBUSCONFIG_H
#define DBUSCONFIG_H
 
#include <QDBusAbstractAdaptor>
#include <QCoreApplication>
#include <QDBusMessage>
#include <QDBusVariant>
 
#include "configdatabase.h"
#include "watchconfig.h"
 
class DBusConfig : public QDBusAbstractAdaptor
{
    Q_OBJECT
    Q_CLASSINFO("D-Bus Interface", "org.myinterface")
 
public:
    //
    // Constructor
    //
    DBusConfig(ConfigDatabase* db, QCoreApplication *app);
 
signals:
    //
    // Emitted when a value has changed on the watch list.
    //
    void valueChanged(const QString&);
 
public slots:
    //
    // Sets a configuration value
    //
    bool setValue(const QString&, const QDBusVariant&);
 
    //
    // Gets a configuration value and send a reply back through dbus
    //
    void value(const QString&, const QDBusMessage&);
 
    //
    // Adds a configuration value to a watch for change list
    //
    bool addWatch(const QString&);
 
private slots:
    //
    // Checks the watch list for changes
    //
    void checkWatchList(void);
 
private:
    //
    // Configuration values to watch for change
    //
    QList<WatchConfig>  _watch;
 
    //
    // Configuration Database
    //
    ConfigDatabase*     _database;
};
 
#endif // DBUSCONFIG_H

---

Code:

---

#include <QtCore/QCoreApplication>
#include <QDBusConnection>
 
#include "configdatabase.h"
#include "dbusconfig.h"
 
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    ConfigDatabase db;
 
    // Register configuration service
    if(!QDBusConnection::sessionBus().registerService("org.myservice"))
    {
        qFatal(qPrintable(QObject::tr("Could not register service on the session D-Bus.\n")));
    }
 
    // Register Object
    DBusConfig *dbus = new DBusConfig(&db, &a);
    if(!QDBusConnection::sessionBus().registerObject("/Me/Config", dbus))
    {
        qFatal(qPrintable(QObject::tr("Could not register configuration object on the session D-Bus.\n")));
    }
 
    return a.exec();
}

---

Well I figured it out, I don't understand why it is designed this way.

Instead of me passing the DBusConfig object to the session bus, I should have passed, the QCoreApplication, which fixed the issue.

But why cant I just pass the DBusConfig object?

I had the same problem, correct export parameter solved it:

QDBusConnection::sessionBus().registerObject("/obj", notificationAdaptor, QDBusConnection::ExportAllContents);