QDBusVariant Class Reference

Data type for representing a D-Bus variant. More...

#include <qdbusvariant.h>

List of all members.

Public Member Functions
	QDBusVariant ()
	Creates an empty variant object.
	QDBusVariant (const QDBusVariant &other)
	Copies the given other variant object.
bool	operator== (const QDBusVariant &other) const
	Checks if the given other variant is equal to this one.
bool	operator!= (const QDBusVariant &other) const
	Checks if the given other variant is not equal to this one.
Public Attributes
QString	signature
	The D-Bus data signature of the data contained in value.
QDBusData	value
	The D-Bus data type to transport as a variant.

---

Detailed Description

Data type for representing a D-Bus variant.

When D-Bus methods or signal require that a paramater can have any of the D-Bus data types, a D-Bus variant can be used.

Basically a D-Bus variant includes the actual data and a D-Bus data signature to allow a receiver to determine the contents.

Since the QDBusVariant's value member will already be fully de-marshalled, a receiver using this bindings can savely ignore the signature if it doesn't need it for a different purpose (e.g. logging).

However, when creating a QDBusVariant object for sending, make sure the signature member is correctly setup, for example by using the value member's buildDBusSignature() method.

 QDBusVariant variant;

 variant.value     = QDBusData::fromInt32(131719);
 variant.signature = variant.value.buildDBusSignature();

---

Constructor & Destructor Documentation

QDBusVariant::QDBusVariant

(

)

[inline]

Creates an empty variant object.

QDBusVariant::QDBusVariant

(

const QDBusVariant &

other

)

[inline]

Copies the given other variant object.

Parameters:

other

the variant object to copy from

References signature, and value.

---

Member Function Documentation

bool QDBusVariant::operator!=

(

const QDBusVariant &

other

)

const [inline]

Checks if the given other variant is not equal to this one.

Parameters:

other

the variant object to compare with

Returns:

true if either signature or value is different, otherwise false

References signature, and value.

bool QDBusVariant::operator==

(

const QDBusVariant &

other

)

const [inline]

Checks if the given other variant is equal to this one.

Parameters:

other

the variant object to compare with

Returns:

true if both signature and value are equal, otherwise false

References signature, and value.

---

Member Data Documentation

QString QDBusVariant::signature

The D-Bus data signature of the data contained in value.

See also:

QDBusData::buildDBusSignature()

Referenced by operator!=(), operator==(), and QDBusVariant().

QDBusData QDBusVariant::value

The D-Bus data type to transport as a variant.

Referenced by operator!=(), operator==(), and QDBusVariant().

---

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

• /data/store/work/kde/3.5/dbus-qt4-qt3backport/dbus/qdbusvariant.h