glutButtonBoxFunc(3GLUT) GLUT glutButtonBoxFunc(3GLUT)
NAME
glutButtonBoxFunc - sets the dial & button box button callback for the
current window.
SYNTAX
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(3), glutDeviceGet(3), glutSpaceballButtonFunc(3),
glutTabletButtonFunc(3)
AUTHOR
Mark J. Kilgard (mjk@nvidia.com)
GLUT 3.7 glutButtonBoxFunc(3GLUT)
Mac OS X 10.6 - Generated Thu Sep 17 20:20:38 CDT 2009