glutButtonBoxFunc(3GLUT) GLUT glutButtonBoxFunc(3GLUT)NAME
glutButtonBoxFunc - sets the dial & button box button callback for the current window.
SYNTAX
#include <GLUT/glut.h>
void glutButtonBoxFunc(void (*func)(int button, int state));
ARGUMENTS
func The new button box callback function.
DESCRIPTION
glutButtonBoxFunc sets the dial & button box button callback for the current window. The dial & button box button 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 button presses. The button parameter will be the button number (starting at one). The number of available dial & button box buttons can
be determined with glutDeviceGet(GLUT_NUM_BUTTON_BOX_BUTTONS). The state is either GLUT_UP or GLUT_DOWN indicating whether the callback was
due to a release or press respectively.
Registering a dial & button box button callback when a dial & button box device is not available is ineffectual and not an error. In this
case, no dial & button box button callbacks will be generated.
Passing NULL to glutButtonBoxFunc disables the generation of dial & button box button callbacks. When a new window is created, no dial &
button box button callback is initially registered.
SEE ALSO
glutDialsFunc, glutDeviceGet, glutSpaceballButtonFunc, glutTabletButtonFunc
AUTHOR
Mark J. Kilgard (mjk@nvidia.com)
GLUT 3.7 glutButtonBoxFunc(3GLUT)
Check Out this Related Man Page
glutDialsFunc(3GLUT) GLUT glutDialsFunc(3GLUT)NAME
glutDialsFunc - sets the dial & button box dials callback for the current 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 com-
plete rotation but continue to accumulate degrees (until the int dial value overflows).
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)
Man Page
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