glutmainloop(3) [centos man page]

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NAME

     glutMainLoop -- The standard GLUT event loop entry point.

LIBRARY

     OpenGLUT - mainloop

SYNOPSIS

     #include <openglut.h>

     void
     glutMainLoop(void);

DESCRIPTION

     This is the main driving force for an event-driven OpenGLUT program.  It alternates between calling glutMainLoopEvent() to process pending
     events and then either sleeping or calling your idle function (see glutIdleFunc()).

     This function  can   return, but GLUT's version of this function never returned.  And you must do special things to OpenGLUT to cause OpenG-
     LUT's version to return.

     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

     For OpenGLUT developers' internal documentation: Runs until the  ExecState  changes to  GLUT_EXEC_STATE_STOP.

BUGS

     Talking to other message systems (e.g., network layers) can be a bit bothersome under the GLUT event model.

SEE ALSO

     glutMainLoopEvent(3) glutLeaveMainLoop(3) glutIdleFunc(3)

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NAME

     glutSpecialFunc -- Sets the Special callback for the current window

LIBRARY

     OpenGLUT - input

SYNOPSIS

     #include <openglut.h>

     void
     glutSpecialFunc(void( *callback )( int key, int x, int y ));

PARAMETERS

      callback	   Client function for keyboard event.

DESCRIPTION

     Registers a  callback  for OpenGLUT to call when the user presses "special" keys on the keyboard.

     The special callback handles some additional keys that are not covered under plain "keyboard" events.  The  key  that is passed to the  call-
     back  is one of an enumerated set.  The association to keys on your keyboard should be obvious.  Their GLUT symbol names are:

      -  GLUT_KEY_F1
      -  GLUT_KEY_F2
      -  GLUT_KEY_F3
      -  GLUT_KEY_F4
      -  GLUT_KEY_F5
      -  GLUT_KEY_F6
      -  GLUT_KEY_F7
      -  GLUT_KEY_F8
      -  GLUT_KEY_F9
      -  GLUT_KEY_F10
      -  GLUT_KEY_F11
      -  GLUT_KEY_F12
      -  GLUT_KEY_LEFT
      -  GLUT_KEY_UP
      -  GLUT_KEY_RIGHT
      -  GLUT_KEY_DOWN
      -  GLUT_KEY_PAGE_UP
      -  GLUT_KEY_PAGE_DOWN
      -  GLUT_KEY_HOME
      -  GLUT_KEY_END
      -  GLUT_KEY_INSERT

     To receive other keys, see glutKeyboardFunc().

     This callback is bound to the  current window  .

CAVEATS

     Many keys are not included; nor is it possible to apply qualifiers such as the Shift or Ctrl key to these keys.

     Windows created via glutCreateMenuWindow() always cascade keyboard and mouse events to their parent.

SEE ALSO

     glutSpecialUpFunc(3) glutKeyboardFunc(3)

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