QDBusReply Class

template <typename T> class QDBusReply

The QDBusReply class stores the reply for a method call to a remote object. More…

List of all members, including inherited members

Public Functions

Detailed Description

It holds either the first argument of the reply, converted to T, or the error:

QDBusReply<int> reply = iface.call("Count");
if (reply.isValid())
    qDebug() << reply.value();
else
    qWarning() << reply.error().message();

QDBusReply<void> holds only an error. QDBusReply<QVariant> takes the value out of the D-Bus variant that carries it.

See also QDBusMessage and QDBusPendingReply.

Differences from Qt

Member Function Documentation

QDBusReply::QDBusReply(const QDBusMessage &reply)

Constructs a reply from the message reply.

QDBusReply::QDBusReply(const QDBusPendingCall &call)

Constructs a reply from call, waiting for the call to finish.

QDBusReply::QDBusReply(const QDBusError &error = QDBusError())

Constructs a reply that holds the error error.

const QDBusError & QDBusReply::error() const

Returns the error, which is invalid if the call succeeded.

bool QDBusReply::isValid() const

Returns true if the reply holds a value rather than an error.

QDBusReply::operator T() const

Returns the value, or a default-constructed one if the call failed.

QDBusReply & QDBusReply::operator=(const QDBusMessage &reply)

Extracts the value from reply and returns a reference to this object.

QDBusReply & QDBusReply::operator=(const QDBusPendingCall &call)

Waits for call and extracts its value. Returns a reference to this object.

QDBusReply & QDBusReply::operator=(const QDBusError &error)

Makes this object hold error. Returns a reference to this object.

T QDBusReply::value() const

Returns the value, or a default-constructed one if the call failed.