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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qwsevent_qws.h"
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QT_BEGIN_NAMESPACE
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QWSEvent *QWSEvent::factory(int type)
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{
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QWSEvent *event = 0;
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switch (type) {
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case QWSEvent::Connected:
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event = new QWSConnectedEvent;
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break;
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case QWSEvent::MaxWindowRect:
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event = new QWSMaxWindowRectEvent;
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break;
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case QWSEvent::Mouse:
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event = new QWSMouseEvent;
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break;
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case QWSEvent::Focus:
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event = new QWSFocusEvent;
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break;
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case QWSEvent::Key:
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event = new QWSKeyEvent;
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break;
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case QWSEvent::Region:
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event = new QWSRegionEvent;
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break;
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case QWSEvent::Creation:
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event = new QWSCreationEvent;
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break;
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#ifndef QT_NO_QWS_PROPERTIES
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case QWSEvent::PropertyNotify:
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event = new QWSPropertyNotifyEvent;
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break;
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case QWSEvent::PropertyReply:
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event = new QWSPropertyReplyEvent;
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break;
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#endif // QT_NO_QWS_PROPERTIES
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case QWSEvent::SelectionClear:
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event = new QWSSelectionClearEvent;
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break;
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case QWSEvent::SelectionRequest:
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event = new QWSSelectionRequestEvent;
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break;
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case QWSEvent::SelectionNotify:
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event = new QWSSelectionNotifyEvent;
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break;
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#ifndef QT_NO_COP
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case QWSEvent::QCopMessage:
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event = new QWSQCopMessageEvent;
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break;
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#endif
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case QWSEvent::WindowOperation:
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event = new QWSWindowOperationEvent;
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break;
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#ifndef QT_NO_QWS_INPUTMETHODS
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case QWSEvent::IMEvent:
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event = new QWSIMEvent;
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break;
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case QWSEvent::IMQuery:
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event = new QWSIMQueryEvent;
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break;
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case QWSEvent::IMInit:
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event = new QWSIMInitEvent;
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break;
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#endif
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#ifndef QT_NO_QWSEMBEDWIDGET
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case QWSEvent::Embed:
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event = new QWSEmbedEvent;
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break;
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#endif
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case QWSEvent::Font:
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event = new QWSFontEvent;
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break;
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case QWSEvent::ScreenTransformation:
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event = new QWSScreenTransformationEvent;
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break;
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default:
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qCritical("QWSEvent::factory() : Unknown event type %08x!", type);
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}
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return event;
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}
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/*!
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\class QWSEvent
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\ingroup qws
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\brief The QWSEvent class encapsulates an event in Qt for Embedded Linux.
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When running a \l{Qt for Embedded Linux} application, it either runs as a
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server or connects to an existing server. All system generated
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events are passed to the server application which then propagates
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the event to the appropriate client.
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Whenever the server receives an event, it queries its stack of
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top-level windows to find the window containing the event's
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position. Each window can identify the client application that
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created it, and returns its ID to the server upon
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request. Finally, the server forwards the event, encapsulated by
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an instance of the QWSEvent class, to the appropriate client.
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\image qt-embedded-client.png
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The server communicates with the client applications over the UNIX
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domain socket. You can retrieve direct access to all the events a
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client receives from the server, by reimplementing QApplication's
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\l {QApplication::}{qwsEventFilter()} function.
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QWSEvent provides the \l Type enum specifying the origin of the
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event. Internally, each type is represented by a QWSEvent
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subclass, e.g., \c QWSKeyEvent.
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\sa QWSServer, QWSClient, {Qt for Embedded Linux Architecture}
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*/
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/*!
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\enum QWSEvent::Type
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This enum describes the origin of the event.
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\value NoEvent No event has occurred.
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\value Connected An application has connected to the server.
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\value Mouse A mouse button is pressed or released, or the mouse cursor is moved.
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See also \l{Qt for Embedded Linux Pointer Handling}.
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\value Focus A window has lost or received focus.
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\value Key A key is pressed or released. See also \l{Qt for Embedded Linux Character Input}.
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\value Region A region has changed.
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\value Creation The server has created an ID, typically for a window.
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\value PropertyNotify A property has changed.
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\value PropertyReply The server is responding to a request for a property's value.
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\value SelectionClear A selection is deleted.
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\value SelectionRequest The server has queried for a selection.
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\value SelectionNotify A new selection has been created.
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\value MaxWindowRect The server has changed the maximum window for an application.
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\value QCopMessage A new Qt Cop message has appeared. See also QCopChannel
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\value WindowOperation A window operation, e.g. resizing, has occurred.
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\value IMEvent An input method has been used to enter text for languages with
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non-Latin alphabets. See also QWSInputMethod.
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\value IMQuery An input method query for a specified property has occurred.
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See also QWSInputMethod.
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\value NEvent The number of events has changed.
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\value Embed An event used internally to implement embedded windows. See also
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QWSEmbedWidget.
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\value ScreenTransformation An event used internally to notify the client processes
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that the screen has changed for example, rotation, etc.
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\omitvalue Font
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\omitvalue IMInit
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*/
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/*!
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\fn QWSMouseEvent *QWSEvent::asMouse()
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\internal
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*/
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/*!
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\fn int QWSEvent::window()
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\internal
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*/
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/*!
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\fn int QWSEvent::window() const
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\internal
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*/
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/*!
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\fn QWSEvent *QWSEvent::factory(int type)
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\internal
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*/
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/*!
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\fn QWSEvent::QWSEvent( int t, int len, char * ptr)
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\internal
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*/
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QT_END_NAMESPACE
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