- Qt 6.8
- Qt Core
- C++ Classes
- QTimer
- Qt 6.8.2 Reference Documentation

# Obsolete Members for QTimer

The following members of class QTimer are deprecated. They are provided to keep old source code working. We strongly advise against using them in new code.

## Static Public Members

`(deprecated in 6.8)` void | singleShot(int msec, const QObject *receiver, const char *member)
`(deprecated in 6.8)` void | singleShot(int msec, Qt::TimerType timerType, const QObject *receiver, const char *member)

## Member Function Documentation

### `[static, deprecated in 6.8]` void QTimer::singleShot(int msec, const QObject *receiver, const char *member)

This function is deprecated since 6.8. We strongly advise against using it in new code.

Use the chrono overloads. This static function calls a slot after a given time interval.

It is very convenient to use this function because you do not need to bother with a timerEvent or create a local QTimer object.

Example:

     #include <QApplication>
     #include <QTimer>

     int main(int argc, char *argv[])
     {
         QApplication app(argc, argv);
         QTimer::singleShot(600000, &app, QCoreApplication::quit);
         ...
         return app.exec();
     }

This sample program automatically terminates after 10 minutes (600,000 milliseconds).

The receiver is the receiving object and the member is the slot. The time interval is msec milliseconds.

Note: This function is reentrant.

See also start().

### `[static, deprecated in 6.8]` void QTimer::singleShot(int msec, Qt::TimerType timerType, const QObject *receiver, const char *member)

This function is deprecated since 6.8. We strongly advise against using it in new code.

This is an overloaded function.

Use the chrono overloads. This static function calls a slot after a given time interval.

It is very convenient to use this function because you do not need to bother with a timerEvent or create a local QTimer object.

The receiver is the receiving object and the member is the slot. The time interval is msec milliseconds. The timerType affects the accuracy of the timer.

Note: This function is reentrant.

See also start().