QDBusConnection Class Reference

The QDBusConnection class represents a connection to the D-Bus bus daemon. More...

#include <qdbusconnection.h>

Public Types
enum	BusType { SessionBus , SystemBus , ActivationBus }
enum	RegisterOption {   ExportAdaptors = 0x01 , ExportScriptableSlots = 0x10 , ExportScriptableSignals = 0x20 , ExportScriptableProperties = 0x40 ,   ExportScriptableInvokables = 0x80 , ExportScriptableContents = 0xf0 , ExportNonScriptableSlots = 0x100 , ExportNonScriptableSignals = 0x200 ,   ExportNonScriptableProperties = 0x400 , ExportNonScriptableInvokables = 0x800 , ExportNonScriptableContents = 0xf00 , ExportAllSlots = ExportScriptableSlots|ExportNonScriptableSlots ,   ExportAllSignals = ExportScriptableSignals|ExportNonScriptableSignals , ExportAllProperties = ExportScriptableProperties|ExportNonScriptableProperties , ExportAllInvokables = ExportScriptableInvokables|ExportNonScriptableInvokables , ExportAllContents = ExportScriptableContents|ExportNonScriptableContents ,   ExportAllSignal = ExportAllSignals , ExportChildObjects = 0x1000 }
enum	UnregisterMode { UnregisterNode , UnregisterTree }
enum	VirtualObjectRegisterOption { SingleNode = 0x0 , SubPath = 0x1 }
enum	ConnectionCapability { UnixFileDescriptorPassing = 0x0001 }

Public Member Functions
	QDBusConnection (const QString &name)
	QDBusConnection (const QDBusConnection &other)
	QDBusConnection (QDBusConnection &&other) noexcept
QDBusConnection &	operator= (QDBusConnection &&other) noexcept
QDBusConnection &	operator= (const QDBusConnection &other)
	~QDBusConnection ()
void	swap (QDBusConnection &other) noexcept
bool	isConnected () const
QString	baseService () const
QDBusError	lastError () const
QString	name () const
ConnectionCapabilities	connectionCapabilities () const
bool	send (const QDBusMessage &message) const
bool	callWithCallback (const QDBusMessage &message, QObject *receiver, const char *returnMethod, const char *errorMethod, int timeout=-1) const
bool	callWithCallback (const QDBusMessage &message, QObject *receiver, const char *slot, int timeout=-1) const
QDBusMessage	call (const QDBusMessage &message, QDBus::CallMode mode=QDBus::Block, int timeout=-1) const
QDBusPendingCall	asyncCall (const QDBusMessage &message, int timeout=-1) const
bool	connect (const QString &service, const QString &path, const QString &interface, const QString &name, QObject *receiver, const char *slot)
bool	connect (const QString &service, const QString &path, const QString &interface, const QString &name, const QString &signature, QObject *receiver, const char *slot)
bool	connect (const QString &service, const QString &path, const QString &interface, const QString &name, const QStringList &argumentMatch, const QString &signature, QObject *receiver, const char *slot)
bool	disconnect (const QString &service, const QString &path, const QString &interface, const QString &name, QObject *receiver, const char *slot)
bool	disconnect (const QString &service, const QString &path, const QString &interface, const QString &name, const QString &signature, QObject *receiver, const char *slot)
bool	disconnect (const QString &service, const QString &path, const QString &interface, const QString &name, const QStringList &argumentMatch, const QString &signature, QObject *receiver, const char *slot)
bool	registerObject (const QString &path, QObject *object, RegisterOptions options=ExportAdaptors)
bool	registerObject (const QString &path, const QString &interface, QObject *object, RegisterOptions options=ExportAdaptors)
void	unregisterObject (const QString &path, UnregisterMode mode=UnregisterNode)
QObject *	objectRegisteredAt (const QString &path) const
bool	registerVirtualObject (const QString &path, QDBusVirtualObject *object, VirtualObjectRegisterOption options=SingleNode)
bool	registerService (const QString &serviceName)
bool	unregisterService (const QString &serviceName)
QDBusConnectionInterface *	interface () const
void *	internalPointer () const

Static Public Member Functions
static QDBusConnection	connectToBus (BusType type, const QString &name)
static QDBusConnection	connectToBus (const QString &address, const QString &name)
static QDBusConnection	connectToPeer (const QString &address, const QString &name)
static void	disconnectFromBus (const QString &name)
static void	disconnectFromPeer (const QString &name)
static QByteArray	localMachineId ()
static QDBusConnection	sessionBus ()
static QDBusConnection	systemBus ()

Protected Member Functions
	QDBusConnection (QDBusConnectionPrivate *dd)

Friends
class	QDBusConnectionPrivate

Detailed Description

The QDBusConnection class represents a connection to the D-Bus bus daemon.

\inmodule QtDBus

Since

4.2

This class is the initial point in a D-Bus session. Using it, you can get access to remote objects, interfaces; connect remote signals to your object's slots; register objects, etc.

D-Bus connections are created using the connectToBus() function, which opens a connection to the server daemon and does the initial handshaking, associating that connection with a name. Further attempts to connect using the same name will return the same connection.

The connection is then torn down using the disconnectFromBus() function.

Once disconnected, calling connectToBus() will not reestablish a connection, you must create a new QDBusConnection instance.

As a convenience for the two most common connection types, the sessionBus() and systemBus() functions return open connections to the session server daemon and the system server daemon, respectively. Those connections are opened when first used and are closed when the QCoreApplication destructor is run.

D-Bus also supports peer-to-peer connections, without the need for a bus server daemon. Using this facility, two applications can talk to each other and exchange messages. This can be achieved by passing an address to connectToBus() function, which was opened by another D-Bus application using QDBusServer.

Definition at line 77 of file qdbusconnection.h.

Member Enumeration Documentation

BusType

enum QDBusConnection::BusType

Specifies the type of the bus connection. The valid bus types are:

\value SessionBus the session bus, associated with the running desktop session \value SystemBus the system bus, used to communicate with system-wide processes \value ActivationBus the activation bus, the "alias" for the bus that started the service

On the Session Bus, one can find other applications by the same user that are sharing the same desktop session (hence the name). On the System Bus, however, processes shared for the whole system are usually found.

Enumerator
SessionBus
SystemBus
ActivationBus

Definition at line 83 of file qdbusconnection.h.

ConnectionCapability

enum QDBusConnection::ConnectionCapability

Since

4.8

This enum describes the available capabilities for a D-Bus connection.

\value UnixFileDescriptorPassing enables passing of Unix file descriptors to other processes (see QDBusUnixFileDescriptor)

See also

connectionCapabilities()

Enumerator
UnixFileDescriptorPassing

Definition at line 129 of file qdbusconnection.h.

RegisterOption

enum QDBusConnection::RegisterOption

Specifies the options for registering objects with the connection. The possible values are:

\value ExportAdaptors export the contents of adaptors found in this object

\value ExportScriptableSlots export this object's scriptable slots \value ExportScriptableSignals export this object's scriptable signals \value ExportScriptableProperties export this object's scriptable properties \value ExportScriptableInvokables export this object's scriptable invokables \value ExportScriptableContents shorthand form for ExportScriptableSlots | ExportScriptableSignals | ExportScriptableProperties

\value ExportNonScriptableSlots export this object's non-scriptable slots \value ExportNonScriptableSignals export this object's non-scriptable signals \value ExportNonScriptableProperties export this object's non-scriptable properties \value ExportNonScriptableInvokables export this object's non-scriptable invokables \value ExportNonScriptableContents shorthand form for ExportNonScriptableSlots | ExportNonScriptableSignals | ExportNonScriptableProperties

\value ExportAllSlots export all of this object's slots \value ExportAllSignals export all of this object's signals \value ExportAllProperties export all of this object's properties \value ExportAllInvokables export all of this object's invokables \value ExportAllContents export all of this object's contents \value ExportChildObjects export this object's child objects

See also

registerObject(), QDBusAbstractAdaptor, {usingadaptors.html}{Using adaptors}

Enumerator
ExportAdaptors
ExportScriptableSlots
ExportScriptableSignals
ExportScriptableProperties
ExportScriptableInvokables
ExportScriptableContents
ExportNonScriptableSlots
ExportNonScriptableSignals
ExportNonScriptableProperties
ExportNonScriptableInvokables
ExportNonScriptableContents
ExportAllSlots
ExportAllSignals
ExportAllProperties
ExportAllInvokables
ExportAllContents
ExportAllSignal
ExportChildObjects

Definition at line 85 of file qdbusconnection.h.

UnregisterMode

enum QDBusConnection::UnregisterMode

The mode for unregistering an object path:

\value UnregisterNode unregister this node only: do not unregister child objects \value UnregisterTree unregister this node and all its sub-tree

Note, however, if this object was registered with the ExportChildObjects option, UnregisterNode will unregister the child objects too.

Enumerator
UnregisterNode
UnregisterTree

Definition at line 116 of file qdbusconnection.h.

VirtualObjectRegisterOption

enum QDBusConnection::VirtualObjectRegisterOption

Enumerator
SingleNode
SubPath

Definition at line 122 of file qdbusconnection.h.

Constructor & Destructor Documentation

QDBusConnection() [1/4]

QDBusConnection::QDBusConnection ( const QString &  name )

explicit

Creates a QDBusConnection object attached to the connection with name name.

This does not open the connection. You have to call connectToBus() to open it.

Definition at line 407 of file qdbusconnection.cpp.

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QDBusConnection() [2/4]

QDBusConnection::QDBusConnection

(

const QDBusConnection &

other

)

Creates a copy of the other connection.

Definition at line 422 of file qdbusconnection.cpp.

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QDBusConnection() [3/4]

QDBusConnection::QDBusConnection ( QDBusConnection &&  other )

inlinenoexcept

Definition at line 136 of file qdbusconnection.h.

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~QDBusConnection()

QDBusConnection::~QDBusConnection

(

)

Disposes of this object. This does not close the connection: you have to call disconnectFromBus() to do that.

Definition at line 444 of file qdbusconnection.cpp.

QDBusConnection() [4/4]

QDBusConnection::QDBusConnection ( QDBusConnectionPrivate *  dd )

explicitprotected

Definition at line 433 of file qdbusconnection.cpp.

Member Function Documentation

asyncCall()

QDBusPendingCall QDBusConnection::asyncCall	(	const QDBusMessage &	message,
		int	timeout = -1
	)		const

Since

4.5 Sends the message over this connection and returns immediately. This function is suitable for method calls only. It returns an object of type QDBusPendingCall which can be used to track the status of the reply.

If no reply is received within timeout milliseconds, an automatic error will be delivered indicating the expiration of the call. The default timeout is -1, which will be replaced with an implementation-defined value that is suitable for inter-process communications (generally, 25 seconds). This timeout is also the upper limit for waiting in QDBusPendingCall::waitForFinished().

See the QDBusInterface::asyncCall() function for a more friendly way of placing calls.

Definition at line 685 of file qdbusconnection.cpp.

baseService()

QString QDBusConnection::baseService

(

)

const

Returns the unique connection name for this connection, if this QDBusConnection object is connected, or an empty QString otherwise.

A Unique Connection Name is a string in the form ":x.xxx" (where x are decimal digits) that is assigned by the D-Bus server daemon upon connection. It uniquely identifies this client in the bus.

This function returns an empty QString for peer-to-peer connections.

Definition at line 1087 of file qdbusconnection.cpp.

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call()

QDBusMessage QDBusConnection::call	(	const QDBusMessage &	message,
		QDBus::CallMode	mode = QDBus::Block,
		int	timeout = -1
	)		const

Sends the message over this connection and blocks, waiting for a reply, for at most timeout milliseconds. This function is suitable for method calls only. It returns the reply message as its return value, which will be either of type QDBusMessage::ReplyMessage or QDBusMessage::ErrorMessage.

If no reply is received within timeout milliseconds, an automatic error will be delivered indicating the expiration of the call. The default timeout is -1, which will be replaced with an implementation-defined value that is suitable for inter-process communications (generally, 25 seconds).

See the QDBusInterface::call() function for a more friendly way of placing calls.

Warning

If mode is QDBus::BlockWithGui, this function will reenter the Qt event loop in order to wait for the reply. During the wait, it may deliver signals and other method calls to your application. Therefore, it must be prepared to handle a reentrancy whenever a call is placed with call().

Definition at line 648 of file qdbusconnection.cpp.

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callWithCallback() [1/2]

bool QDBusConnection::callWithCallback	(	const QDBusMessage &	message,
		QObject *	receiver,
		const char *	returnMethod,
		const char *	errorMethod,
		int	timeout = -1
	)		const

Sends the message over this connection and returns immediately. When the reply is received, the method returnMethod is called in the receiver object. If an error occurs, the method errorMethod will be called instead.

If no reply is received within timeout milliseconds, an automatic error will be delivered indicating the expiration of the call. The default timeout is -1, which will be replaced with an implementation-defined value that is suitable for inter-process communications (generally, 25 seconds).

This function is suitable for method calls only. It is guaranteed that the slot will be called exactly once with the reply, as long as the parameter types match and no error occurs.

Returns true if the message was sent, or false if the message could not be sent.

Definition at line 588 of file qdbusconnection.cpp.

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callWithCallback() [2/2]

bool QDBusConnection::callWithCallback	(	const QDBusMessage &	message,
		QObject *	receiver,
		const char *	returnMethod,
		int	timeout = -1
	)		const

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Deprecated:

Sends the message over this connection and returns immediately. When the reply is received, the method returnMethod is called in the receiver object.

This function is suitable for method calls only. It is guaranteed that the slot will be called exactly once with the reply, as long as the parameter types match and no error occurs.

This function is dangerous because it cannot report errors, including the expiration of the timeout.

Returns true if the message was sent, or false if the message could not be sent.

Definition at line 619 of file qdbusconnection.cpp.

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connect() [1/3]

bool QDBusConnection::connect	(	const QString &	service,
		const QString &	path,
		const QString &	interface,
		const QString &	name,
		const QString &	signature,
		QObject *	receiver,
		const char *	slot
	)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Connects the signal to the slot slot in object receiver. Unlike the previous connect() overload, this function allows one to specify the parameter signature to be connected using the signature variable. The function will then verify that this signature can be delivered to the slot specified by slot and return false otherwise.

Returns true if the connection was successful.

Note

This function verifies that the signal signature matches the slot's parameters, but it does not verify that the actual signal exists with the given signature in the remote service.

Definition at line 729 of file qdbusconnection.cpp.

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connect() [2/3]

bool QDBusConnection::connect	(	const QString &	service,
		const QString &	path,
		const QString &	interface,
		const QString &	name,
		const QStringList &	argumentMatch,
		const QString &	signature,
		QObject *	receiver,
		const char *	slot
	)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Since

4.6

Connects the signal to the slot slot in object receiver. Unlike the previous connect() overload, this function allows one to specify the parameter signature to be connected using the signature variable. The function will then verify that this signature can be delivered to the slot specified by slot and return false otherwise.

The argumentMatch parameter lists the string parameters to be matched, in sequential order. Note that, to match an empty string, you need to pass a QString that is empty but not null (i.e., QString("")). A null QString skips matching at that position.

Returns true if the connection was successful.

Note

This function verifies that the signal signature matches the slot's parameters, but it does not verify that the actual signal exists with the given signature in the remote service.

Definition at line 759 of file qdbusconnection.cpp.

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connect() [3/3]

bool QDBusConnection::connect	(	const QString &	service,
		const QString &	path,
		const QString &	interface,
		const QString &	name,
		QObject *	receiver,
		const char *	slot
	)

Connects the signal specified by the service, path, interface and name parameters to the slot slot in object receiver. The arguments service and path can be empty, denoting a connection to any signal of the (interface, name) pair, from any remote application.

Returns true if the connection was successful.

Warning

The signal will only be delivered to the slot if the parameters match. This verification can be done only when the signal is received, not at connection time.

Definition at line 706 of file qdbusconnection.cpp.

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connectionCapabilities()

QDBusConnection::ConnectionCapabilities QDBusConnection::connectionCapabilities

(

)

const

Since

4.8

Returns the capabilities of this connection as negotiated with the bus server or peer. If this QDBusConnection is not connected, this function returns no capabilities.

Definition at line 1121 of file qdbusconnection.cpp.

connectToBus() [1/2]

QDBusConnection QDBusConnection::connectToBus ( BusType  type, const QString &  name  )

static

Opens a connection of type type to one of the known busses and associate with it the connection name name. Returns a QDBusConnection object associated with that connection.

Definition at line 472 of file qdbusconnection.cpp.

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connectToBus() [2/2]

QDBusConnection QDBusConnection::connectToBus ( const QString &  address, const QString &  name  )

static

Opens a connection to a private bus on address address and associate with it the connection name name. Returns a QDBusConnection object associated with that connection.

Definition at line 485 of file qdbusconnection.cpp.

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connectToPeer()

QDBusConnection QDBusConnection::connectToPeer ( const QString &  address, const QString &  name  )

static

Since

4.8

Opens a peer-to-peer connection on address address and associate with it the connection name name. Returns a QDBusConnection object associated with that connection.

Definition at line 500 of file qdbusconnection.cpp.

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disconnect() [1/3]

bool QDBusConnection::disconnect	(	const QString &	service,
		const QString &	path,
		const QString &	interface,
		const QString &	name,
		const QString &	signature,
		QObject *	receiver,
		const char *	slot
	)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Disconnects the signal specified by the service, path, interface, name, and signature parameters from the slot slot in object receiver. The arguments must be the same as passed to the connect() function.

Returns true if the disconnection was successful.

Definition at line 813 of file qdbusconnection.cpp.

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disconnect() [2/3]

bool QDBusConnection::disconnect	(	const QString &	service,
		const QString &	path,
		const QString &	interface,
		const QString &	name,
		const QStringList &	argumentMatch,
		const QString &	signature,
		QObject *	receiver,
		const char *	slot
	)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Since

4.6

Disconnects the signal specified by the service, path, interface, name, argumentMatch, and signature parameters from the slot slot in object receiver. The arguments must be the same as passed to the connect() function.

Returns true if the disconnection was successful.

Definition at line 831 of file qdbusconnection.cpp.

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disconnect() [3/3]

bool QDBusConnection::disconnect	(	const QString &	service,
		const QString &	path,
		const QString &	interface,
		const QString &	name,
		QObject *	receiver,
		const char *	slot
	)

Disconnects the signal specified by the service, path, interface and name parameters from the slot slot in object receiver. The arguments must be the same as passed to the connect() function.

Returns true if the disconnection was successful.

Definition at line 797 of file qdbusconnection.cpp.

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disconnectFromBus()

void QDBusConnection::disconnectFromBus ( const QString &  name )

static

Closes the bus connection of name name.

Note that if there are still QDBusConnection objects associated with the same connection, the connection will not be closed until all references are dropped. However, no further references can be created using the QDBusConnection constructor.

Definition at line 518 of file qdbusconnection.cpp.

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disconnectFromPeer()

void QDBusConnection::disconnectFromPeer ( const QString &  name )

static

Since

4.8

Closes the peer connection of name name.

Note that if there are still QDBusConnection objects associated with the same connection, the connection will not be closed until all references are dropped. However, no further references can be created using the QDBusConnection constructor.

Definition at line 539 of file qdbusconnection.cpp.

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interface()

QDBusConnectionInterface * QDBusConnection::interface

(

)

const

Returns a QDBusConnectionInterface object that represents the D-Bus server interface on this connection.

Definition at line 1033 of file qdbusconnection.cpp.

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internalPointer()

void * QDBusConnection::internalPointer

(

)

const

Definition at line 1050 of file qdbusconnection.cpp.

isConnected()

bool QDBusConnection::isConnected

(

)

const

Returns true if this QDBusConnection object is connected.

Definition at line 1058 of file qdbusconnection.cpp.

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lastError()

QDBusError QDBusConnection::lastError

(

)

const

Returns the last error that happened in this connection.

This function is provided for low-level code. If you're using QDBusInterface::call(), error codes are reported by its return value.

See also

QDBusInterface, QDBusMessage

Definition at line 1072 of file qdbusconnection.cpp.

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localMachineId()

QByteArray QDBusConnection::localMachineId ( )

static

Since

4.8 Returns the local machine ID as known to the D-Bus system. Each node or host that runs D-Bus has a unique identifier that can be used to distinguish it from other hosts if they are sharing resources like the filesystem.

Note that the local machine ID is not guaranteed to be persistent across boots of the system, so this identifier should not be stored in persistent storage (like the filesystem). It is guaranteed to remain constant only during the lifetime of this boot session.

Definition at line 1215 of file qdbusconnection.cpp.

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name()

QString QDBusConnection::name

(

)

const

Since

4.5

Returns the connection name for this connection, as given as the name parameter to connectToBus().

The connection name can be used to uniquely identify actual underlying connections to buses. Copies made from a single connection will always implicitly share the underlying connection, and hence will have the same connection name.

Inversely, two connections having different connection names will always either be connected to different buses, or have a different unique name (as returned by baseService()) on that bus.

See also

connectToBus(), disconnectFromBus()

Definition at line 1109 of file qdbusconnection.cpp.

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objectRegisteredAt()

QObject * QDBusConnection::objectRegisteredAt

(

const QString &

path

)

const

Return the object that was registered with the registerObject() at the object path given by path.

Definition at line 994 of file qdbusconnection.cpp.

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operator=() [1/2]

QDBusConnection & QDBusConnection::operator=

(

const QDBusConnection &

other

)

Creates a copy of the connection other in this object. Note that the connection this object referenced before the copy, is not spontaneously disconnected.

See also

disconnectFromBus()

Definition at line 457 of file qdbusconnection.cpp.

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operator=() [2/2]

QDBusConnection& QDBusConnection::operator= ( QDBusConnection &&  other )

inlinenoexcept

Definition at line 137 of file qdbusconnection.h.

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registerObject() [1/2]

bool QDBusConnection::registerObject	(	const QString &	path,
		const QString &	interface,
		QObject *	object,
		RegisterOptions	options = ExportAdaptors
	)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Since

5.5

Registers the object object at path path with interface name interface and returns true if the registration was successful. The options parameter specifies how much of the object object will be exposed through D-Bus.

This function does not replace existing objects: if there is already an object registered at path path, this function will return false. Use unregisterObject() to unregister it first.

The ExportChildObjects flag exports child objects on D-Bus based on the path of the registered objects and the QObject::objectName of the child. Therefore, it is important for the child object to have an object name.

You cannot register an object as a child object of an object that was registered with ExportChildObjects.

Definition at line 885 of file qdbusconnection.cpp.

registerObject() [2/2]

bool QDBusConnection::registerObject	(	const QString &	path,
		QObject *	object,
		RegisterOptions	options = ExportAdaptors
	)

Registers the object object at path path and returns true if the registration was successful. The options parameter specifies how much of the object object will be exposed through D-Bus.

This function does not replace existing objects: if there is already an object registered at path path, this function will return false. Use unregisterObject() to unregister it first.

The ExportChildObjects flag exports child objects on D-Bus based on the path of the registered objects and the QObject::objectName of the child. Therefore, it is important for the child object to have an object name.

You cannot register an object as a child object of an object that was registered with ExportChildObjects.

Definition at line 861 of file qdbusconnection.cpp.

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registerService()

bool QDBusConnection::registerService

(

const QString &

serviceName

)

Attempts to register the serviceName on the D-Bus server and returns true if the registration succeeded. The registration will fail if the name is already registered by another application.

See also

unregisterService(), QDBusConnectionInterface::registerService()

Definition at line 1133 of file qdbusconnection.cpp.

registerVirtualObject()

bool QDBusConnection::registerVirtualObject	(	const QString &	path,
		QDBusVirtualObject *	object,
		VirtualObjectRegisterOption	options = SingleNode
	)

Definition at line 968 of file qdbusconnection.cpp.

send()

bool QDBusConnection::send

(

const QDBusMessage &

message

)

const

Sends the message over this connection, without waiting for a reply. This is suitable for errors, signals, and return values as well as calls whose return values are not necessary.

Returns true if the message was queued successfully, false otherwise.

Definition at line 557 of file qdbusconnection.cpp.

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sessionBus()

QDBusConnection QDBusConnection::sessionBus ( )

static

Returns a QDBusConnection object opened with the session bus. The object reference returned by this function is valid until the application terminates, at which point the connection will be closed and the object deleted.

Definition at line 1165 of file qdbusconnection.cpp.

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swap()

void QDBusConnection::swap ( QDBusConnection &  other )

inlinenoexcept

Swaps this QDBusConnection instance with other.

Definition at line 141 of file qdbusconnection.h.

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systemBus()

QDBusConnection QDBusConnection::systemBus ( )

static

Returns a QDBusConnection object opened with the system bus. The object reference returned by this function is valid until the QCoreApplication's destructor is run, when the connection will be closed and the object, deleted.

Definition at line 1179 of file qdbusconnection.cpp.

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unregisterObject()

void QDBusConnection::unregisterObject	(	const QString &	path,
		UnregisterMode	mode = UnregisterNode
	)

Unregisters an object that was registered with the registerObject() at the object path given by path and, if mode is QDBusConnection::UnregisterTree, all of its sub-objects too.

Note that you cannot unregister objects that were not registered with registerObject().

Definition at line 981 of file qdbusconnection.cpp.

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unregisterService()

bool QDBusConnection::unregisterService

(

const QString &

serviceName

)

Unregisters the service serviceName that was previously registered with registerService() and returns true if it succeeded.

See also

registerService(), QDBusConnectionInterface::unregisterService()

Definition at line 1149 of file qdbusconnection.cpp.

Friends And Related Function Documentation

QDBusConnectionPrivate

friend class QDBusConnectionPrivate

friend

Definition at line 209 of file qdbusconnection.h.

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The documentation for this class was generated from the following files:

• src/dbus/qdbusconnection.h
• src/dbus/qdbusconnection.cpp