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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//! [0]
// To find the IP address of qt.nokia.com
QHostInfo::lookupHost("qt.nokia.com",
this, SLOT(printResults(QHostInfo)));
// To find the host name for 4.2.2.1
QHostInfo::lookupHost("4.2.2.1",
this, SLOT(printResults(QHostInfo)));
//! [0]
//! [1]
QHostInfo info = QHostInfo::fromName("qt.nokia.com");
//! [1]
//! [2]
QHostInfo::lookupHost("www.kde.org",
this, SLOT(lookedUp(QHostInfo)));
//! [2]
//! [3]
void MyWidget::lookedUp(const QHostInfo &host)
{
if (host.error() != QHostInfo::NoError) {
qDebug() << "Lookup failed:" << host.errorString();
return;
}
foreach (QHostAddress address, host.addresses())
qDebug() << "Found address:" << address.toString();
}
//! [3]
//! [4]
QHostInfo::lookupHost("4.2.2.1",
this, SLOT(lookedUp(QHostInfo)));
//! [4]
//! [5]
QHostInfo info;
...
if (!info.addresses().isEmpty()) {
QHostAddress address = info.addresses().first();
// use the first IP address
}
//! [5]
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