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glutDialsFunc(3GLUT)		     GLUT		  glutDialsFunc(3GLUT)

NAME
       glutDialsFunc  -	sets the dial &	button box dials callback for the cur-
       rent window.

SYNTAX
       void glutDialsFunc(void (*func)(int dial, int value));

ARGUMENTS
       func	 The new dials callback	function.

DESCRIPTION
       glutDialsFunc sets the dial & button box	dials callback for the current
       window.	The  dial  &  button box dials callback	for a window is	called
       when the	window has dial	& button box input focus (normally,  when  the
       mouse  is  in the window) and the user generates	dial & button box dial
       changes.	The dial parameter will	be the dial number (starting at	 one).
       The  number of available	dial & button box dials	can be determined with
       glutDeviceGet(GLUT_NUM_DIALS). The value	measures the absolute rotation
       in  degrees.  Dial values do not	``roll over'' with each	complete rota-
       tion but	continue to accumulate degrees (until the int dial value over-
       flows).

       Registering a dial & button box dials callback when a dial & button box
       device is not available is ineffectual and not an error.	In this	 case,
       no dial & button	box dials callbacks will be generated.

       Passing	NULL to	glutDialsFunc disables the generation of dial &	button
       box dials callbacks. When a new window is created, no dial & button box
       dials callback is initially registered.

SEE ALSO
       glutButtonBoxFunc, glutDeviceGet

AUTHOR
       Mark J. Kilgard (mjk@nvidia.com)

GLUT				      3.7		  glutDialsFunc(3GLUT)

NAME | SYNTAX | ARGUMENTS | DESCRIPTION | SEE ALSO | AUTHOR

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