/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** 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 either Technology Preview License Agreement or the ** Beta Release License Agreement. ** ** 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 1.0, included in the file LGPL_EXCEPTION.txt in this ** package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** If you are unsure which license is appropriate for your use, please ** contact the sales department at http://www.qtsoftware.com/contact. ** $QT_END_LICENSE$ ** ****************************************************************************/ #include #include class MyCheckBox : public QCheckBox { public: void mousePressEvent(QMouseEvent *event); }; //! [0] void MyCheckBox::mousePressEvent(QMouseEvent *event) { if (event->button() == Qt::LeftButton) { // handle left mouse button here } else { // pass on other buttons to base class QCheckBox::mousePressEvent(event); } } //! [0] class MyWidget : public QWidget { public: bool event(QEvent *event); }; static const int MyCustomEventType = 1099; class MyCustomEvent : public QEvent { public: MyCustomEvent() : QEvent((QEvent::Type)MyCustomEventType) {} }; //! [1] bool MyWidget::event(QEvent *event) { if (event->type() == QEvent::KeyPress) { QKeyEvent *ke = static_cast(event); if (ke->key() == Qt::Key_Tab) { // special tab handling here return true; } } else if (event->type() == MyCustomEventType) { MyCustomEvent *myEvent = static_cast(event); // custom event handling here return true; } return QWidget::event(event); } //! [1] int main() { }