diff -r dee5afe5301f -r 3f74d0d4af4c doc/src/snippets/buffer/buffer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/src/snippets/buffer/buffer.cpp	Thu Apr 08 14:19:33 2010 +0300
@@ -0,0 +1,125 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+#include <QBuffer>
+#include <QPalette>
+
+static void main_snippet()
+{
+//! [0]
+    QBuffer buffer;
+    char ch;
+
+    buffer.open(QBuffer::ReadWrite);
+    buffer.write("Qt rocks!");
+    buffer.seek(0);
+    buffer.getChar(&ch);  // ch == 'Q'
+    buffer.getChar(&ch);  // ch == 't'
+    buffer.getChar(&ch);  // ch == ' '
+    buffer.getChar(&ch);  // ch == 'r'
+//! [0]
+}
+
+static void write_datastream_snippets()
+{
+//! [1]
+    QByteArray byteArray;
+    QBuffer buffer(&byteArray);
+    buffer.open(QIODevice::WriteOnly);
+
+    QDataStream out(&buffer);
+    out << QApplication::palette();
+//! [1]
+}
+
+static void read_datastream_snippets()
+{
+    QByteArray byteArray;
+
+//! [2]
+    QPalette palette;
+    QBuffer buffer(&byteArray);
+    buffer.open(QIODevice::ReadOnly);
+
+    QDataStream in(&buffer);
+    in >> palette;
+//! [2]
+}
+
+static void bytearray_ptr_ctor_snippet()
+{
+//! [3]
+    QByteArray byteArray("abc");
+    QBuffer buffer(&byteArray);
+    buffer.open(QIODevice::WriteOnly);
+    buffer.seek(3);
+    buffer.write("def", 3);
+    buffer.close();
+    // byteArray == "abcdef"
+//! [3]
+}
+
+static void setBuffer_snippet()
+{
+//! [4]
+    QByteArray byteArray("abc");
+    QBuffer buffer;
+    buffer.setBuffer(&byteArray);
+    buffer.open(QIODevice::WriteOnly);
+    buffer.seek(3);
+    buffer.write("def", 3);
+    buffer.close();
+    // byteArray == "abcdef"
+//! [4]
+}
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+
+    main_snippet();
+    bytearray_ptr_ctor_snippet();
+    write_datastream_snippets();
+    read_datastream_snippets();
+    setBuffer_snippet();
+    return 0;
+}