centos man page for glutmainloopevent

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NAME
     glutMainLoopEvent -- Dispatches all pending events.

LIBRARY
     OpenGLUT - mainloop

SYNOPSIS
     #include <openglut.h>

     void
     glutMainLoopEvent(void);

DESCRIPTION
     The general outline of this function is to first drain the queue of windowsystem events, in most cases dispatching each as it is found.
     After the queue is empty, we check for timer-based events, coalesced window events (e.g., redisplays), and windows that need to be closed.

     The cross-reference section for this function's documentation should ideally contain every callback, but the list would be tediously long and
     prone to omissions.

CAVEATS
     Does not necessarily dispatch events that are received  after   this function starts processing.

     At first glance, this function may not seem to afford any new capability that you couldn't get with an idle callback or glutLeaveMainLoop().
     However there are other GLUT-like libraries that may have their own window event processing loops.  Having glutMainLoopEvent() allows you to
     ask OpenGLUT to do its work in a batch, then return to whatever processing the other library (or libraries) require.

SEE ALSO
     glutIdleFunc(3) glutLeaveMainLoop(3) glutMainLoop(3)

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