Idle and Timer Callbacks
[OpenGLEAN API Reference]

Collaboration diagram for Idle and Timer Callbacks:

Functions
void	glutIdleFunc (void(*callback)(void))
void	glutTimerFunc (unsigned int msec, void(*callback)(int data), int data)

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Function Documentation

void glutIdleFunc (  void(*)(void)  callback  )

Sets the global idle callback. Parameters: callback  Client function for idle event. When OpenGLEAN's glutMainLoop() is doing nothing else, it checks to see if an ``idle'' callback set. If so, OpenGLEAN invokes that callback. This callback is not bound to any window. It is a fatal error to call this function without properly initializing OpenGLEAN via glutInit(). Note: There is at most one idle callback for your entire application. See also: glutTimerFunc(), glutMainLoop(), glutMainLoopEvent()

void glutTimerFunc (  unsigned int  msec, void(*)(int data)  callback, int  data )

Sets the Timer callback for the current window. Parameters: msec  Milliseconds till invocation. callback  Client function for timer event. data  Arbitrary data; passed to callback . After at least msec milliseconds, OpenGLEAN will call callback , passing in your user-supplied data parameter. OpenGLEAN will call your function only once. This callback is not bound to any window. It is a fatal error to call this function without properly initializing OpenGLEAN via glutInit(). Note: Unlike most other callbacks, timers only occur once. Unlike most other callbacks, you cannot deregister a timer callback. Unlike most other callbacks, you can register an arbitrary number of timers. See also: glutIdleFunc(), glutMainLoop(), glutMainLoopEvent()

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