QBasicTimer Class
The QBasicTimer class provides timer events for objects. More...
Header: | #include <QBasicTimer> |
qmake: | QT += core |
Public Functions
Detailed Description
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 applications. Note that this timer is a repeating timer that will send subsequent timer events unless the stop() function is called.
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 timerId().
The Wiggly example uses QBasicTimer to repaint a widget at regular intervals.
See also QTimer, QTimerEvent, QObject::timerEvent(), Timers, and Wiggly Example.
Member Function Documentation
void QBasicTimer::start(int msec, Qt::TimerType timerType, QObject *obj)
This is an overloaded function.
Starts (or restarts) the timer with a msec milliseconds timeout and the given timerType. See Qt::TimerType for information on the different timer types.
obj will receive timer events.
See also stop(), isActive(), QObject::timerEvent(), and Qt::TimerType.
void QBasicTimer::stop()
Stops the timer.
See also start() and isActive().