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QDBusInterface Class Reference
^{[QtDBus module]}

The QDBusInterface class is a proxy for interfaces on remote objects. More...

Inherits QDBusAbstractInterface.

Methods

• __init__ (self, QString service, QString path, QString interface = '', QDBusConnection connection = QDBusConnection.sessionBus(), QObject parent = None)

Calls are usually placed by using the call() function, which constructs the message, sends it over the bus, waits for the reply and decodes the reply. Signals are connected to by using the normal QObject.connect() function. Finally, properties are accessed using the QObject.property() and QObject.setProperty() functions.

The following code snippet demonstrates how to perform a mathematical operation of "2 + 2" in a remote application called com.example.Calculator, accessed via the session bus.

 QDBusInterface remoteApp( "com.example.Calculator", "/Calculator/Operations",
                           "org.mathematics.RPNCalculator" );
 remoteApp.call( "PushOperand", 2 );
 remoteApp.call( "PushOperand", 2 );
 remoteApp.call( "ExecuteOperation", "+" );
 QDBusReply<int> reply = remoteApp.call( "PopOperand" );

 if ( reply.isValid() )
     printf( "%d", reply.value() );          // prints 4

Method Documentation

QDBusInterface.__init__ (self, QString service, QString path, QString interface = '', QDBusConnection connection = QDBusConnection.sessionBus(), QObject parent = None)

Creates a dynamic QDBusInterface object associated with the interface interface on object at path path on service service, using the given connection. If interface is an empty string, the object created will refer to the merging of all interfaces found in that object.

parent is passed to the base class constructor.

If the remote service service is not present or if an error occurs trying to obtain the description of the remote interface interface, the object created will not be valid (see isValid()).