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## 7.19 glutTimerFunc

`glutTimerFunc` registers a timer callback to be triggered in a specified number of milliseconds.

Usage

    void glutTimerFunc(unsigned int msecs,
                       void (*func)(int value), value);

Description

`glutTimerFunc` registers the timer callback `func` to be triggered in at least `msecs` milliseconds. The `value` parameter to the timer callback will be the value of the `value` parameter to `glutTimerFunc`. Multiple timer callbacks at same or differing times may be registered simultaneously.

The number of milliseconds is a lower bound on the time before the callback is generated. GLUT attempts to deliver the timer callback as soon as possible after the expiration of the callback's time interval.

There is no support for canceling a registered callback. Instead, ignore a callback based on its `value` parameter when it is triggered.

Next: 8 Color Index Colormap Up: 7 Callback Registration Previous: 7.18 glutIdleFunc