QtDBus module

The QtDBus module is a Unix-only library that you can use to perform Inter-Process Communication using the D-Bus protocol. More...

Namespaces

QDBus

Contains miscellaneous identifiers used throughout the QtDBus library

Classes

QDBusAbstractAdaptor

The base class of D-Bus adaptor classes

QDBusAbstractInterface

The base class for all D-Bus interfaces in the QtDBus binding, allowing access to remote interfaces

QDBusArgument

Used to marshall and demarshall D-Bus arguments

QDBusConnection

Represents a connection to the D-Bus bus daemon

QDBusConnectionInterface

Access to the D-Bus bus daemon service

QDBusContext

Allows slots to determine the D-Bus context of the calls

QDBusError

Represents an error received from the D-Bus bus or from remote applications found in the bus

QDBusInterface

Proxy for interfaces on remote objects

QDBusMessage

Represents one message sent or received over the D-Bus bus

QDBusObjectPath

Enables the programmer to identify the OBJECT_PATH type provided by the D-Bus typesystem

QDBusPendingCall

Refers to one pending asynchronous call

QDBusPendingCallWatcher

Convenient way for waiting for asynchronous replies

QDBusPendingReply

Contains the reply to an asynchronous method call

QDBusReply

Stores the reply for a method call to a remote object

QDBusServiceWatcher

Allows the user to watch for a bus service change

QDBusSignature

Enables the programmer to identify the SIGNATURE type provided by the D-Bus typesystem

QDBusUnixFileDescriptor

Holds one Unix file descriptor

QDBusVariant

Enables the programmer to identify the variant type provided by the D-Bus typesystem

Detailed Description

Applications using the QtDBus module can provide services to other, remote applications by exporting objects, as well as use services exported by those applications by placing calls and accessing properties.

The QtDBus module provides an interface that extends the Qt Signals and Slots mechanism, allowing one to connect to a signal emitted remotely as well as to connect a local signal to remote slot.

To use this module, use the following code in your application:

 #include <QtDBus>

If you're using qmake to build your application, you can add this line to your .pro file to make it link against the QtDBus libraries:

 QT += dbus

Note: The source code for this module is located in the src/qdbus directory. When installing Qt from source, this module is built when Qt's tools are built.

See the D-Bus page for detailed information on how to use this module.

This module is part of all Qt editions.

Notes provided by the Qt Community
Informative
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Votes: 0

Coverage: Qt library 4.7, 4.8

Picture of 1+1=10 1+1=10

Hobby Entomologist
2 notes

Two ways to link against the module

You may find two ways to link against the module

  1. CONFIG += qdbus

and

  1. QT += dbus

But the former is no longer recommended.

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