author | Eckhart Koeppen <eckhart.koppen@nokia.com> |
Wed, 21 Apr 2010 20:15:53 +0300 | |
branch | RCL_3 |
changeset 14 | c0432d11811c |
parent 4 | 3b1da2848fc7 |
permissions | -rw-r--r-- |
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/**************************************************************************** |
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** |
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3b1da2848fc7
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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diff
changeset
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** Copyright (C) 2010 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 |