QNetworkConfigurationManager Class Reference
[QtNetwork module]

Detailed Description

The QNetworkConfigurationManager class manages the network configurations provided by the system.

QNetworkConfigurationManager provides access to the network configurations known to the system and enables applications to detect the system capabilities (with regards to network sessions) at runtime.

A QNetworkConfiguration abstracts a set of configuration options describing how a network interface has to be configured to connect to a particular target network. QNetworkConfigurationManager maintains and updates the global list of QNetworkConfigurations. Applications can access and filter this list via allConfigurations(). If a new configuration is added or an existing one is removed or changed the configurationAdded(), configurationRemoved() and configurationChanged() signals are emitted respectively.

The defaultConfiguration() can be used when intending to immediately create a new network session without caring about the particular configuration. It returns a QNetworkConfiguration::Discovered configuration. If there are not any discovered ones an invalid configuration is returned.

Some configuration updates may require some time to perform updates. A WLAN scan is such an example. Unless the platform performs internal updates it may be required to manually trigger configuration updates via QNetworkConfigurationManager::updateConfigurations(). The completion of the update process is indicted by emitting the updateCompleted() signal. The update process ensures that every existing QNetworkConfiguration instance is updated. There is no need to ask for a renewed configuration list via allConfigurations().

See also QNetworkConfiguration.

Member Type Documentation

    QNetworkConfigurationManager mgr;
    QList<QNetworkConfiguration> activeConfigs = mgr.allConfigurations(QNetworkConfiguration::Active)
    if (activeConfigs.count() > 0)
        Q_ASSERT(mgr.isOnline())
    else
        Q_ASSERT(!mgr.isOnline())