Logo Search packages:      
Sourcecode: qt4-x11 version File versions


** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
** This file is part of the QtCore module of the Qt Toolkit.
** This file may be used under the terms of the GNU General Public
** License version 2.0 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 GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE

#include "qbasictimer.h"
#include "qcoreapplication.h"
#include "qabstracteventdispatcher.h"

    \class QBasicTimer
    \brief The QBasicTimer class provides timer events for objects.

    \ingroup time
    \ingroup events

    This is a fast, lightweight, and low-level class used by Qt
    internally. We recommend using the higher-level QTimer class
    rather than this class if you want to use timers in your

    To use this class, create a QBasicTimer, and call its start()
    function with a timeout interval and with a pointer to a QObject
    subclass. When the timer times out it will send a timer event to
    the QObject subclass. The timer can be stopped at any time using
    stop(). isActive() returns true for a timer that is running;
    i.e. it has been started, has not reached the timeout time, and
    has not been stopped. The timer's ID can be retrieved using

    The \l{widgets/wiggly}{Wiggly} example uses QBasicTimer to repaint
    a widget at regular intervals.

    \sa QTimer, QTimerEvent, QObject::timerEvent(), Timers, {Wiggly Example}

    \fn QBasicTimer::QBasicTimer()

    Contructs a basic timer.

    \sa start()
    \fn QBasicTimer::~QBasicTimer()

    Destroys the basic timer.

    \fn bool QBasicTimer::isActive() const

    Returns true if the timer is running, has not yet timed
    out, and has not been stopped; otherwise returns false.

    \sa start() stop()

    \fn int QBasicTimer::timerId() const

    Returns the timer's ID.

    \sa QTimerEvent::timerId()

    \fn void QBasicTimer::start(int msec, QObject *object)

    Starts (or restarts) the timer with a \a msec milliseconds

    The given \a object will receive timer events.

    \sa stop() isActive() QObject::timerEvent()
00096 void QBasicTimer::start(int msec, QObject *obj)
   if (obj)
       id = obj->startTimer(msec);

    Stops the timer.

    \sa start() isActive()
00108 void QBasicTimer::stop()
    if (id) {
        QAbstractEventDispatcher *eventDispatcher = QAbstractEventDispatcher::instance();
        if (eventDispatcher)
    id = 0;

Generated by  Doxygen 1.6.0   Back to index