| Functions | |
| void | glutIdleFunc (void(*callback)(void)) | 
| void | glutTimerFunc (unsigned int msec, void(*callback)(int data), int data) | 
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| Sets the global idle callback. 
 
 This callback is not bound to any window. 
 
 
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| Sets the Timer callback for the current window. 
 
 This callback is not bound to any window. 
 
 
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