C++/Qt/QDBusMessage — различия между версиями
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Текущая версия на 10:24, 25 мая 2010
QDBusMessage and QDBusVariant
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** This file is part of the documentation of the Qt Toolkit.
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** General Public License version 2.1 as published by the Free Software
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** packaging of this file. Please review the following information to
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** General Public License version 3.0 as published by the Free Software
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#include <QtCore>
#include <QtDBus>
static QVariant callMyDBusFunction() { return QVariant(); }
int main()
{
QDBusMessage myDBusMessage;
QList<QVariant> arguments;
arguments << QVariant(42) << QVariant::fromValue(QDBusVariant(43)) << QVariant("hello");
myDBusMessage.setArguments(arguments);
// call a D-Bus function that returns a D-Bus variant
QVariant v = callMyDBusFunction();
// retrieve the D-Bus variant
QDBusVariant dbusVariant = qvariant_cast<QDBusVariant>(v);
// retrieve the actual value stored in the D-Bus variant
QVariant result = dbusVariant.variant();
return 0;
}