glutTabletButtonFunc(3GLUT) GLUT glutTabletButtonFunc(3GLUT)NAMEglutTabletButtonFunc - sets the special keyboard callback
for the current window.
SYNTAX
void glutTabletButtonFunc(void (*func)(int button, int state,
int x, int y));
ARGUMENTS
func The new tablet button callback function.
DESCRIPTIONglutTabletButtonFunc sets the tablet button callback for
the current window. The tablet button callback for a win
dow is called when the window has tablet input focus (nor
mally, when the mouse is in the window) and the user gen
erates tablet button presses. The button parameter will be
the button number (starting at one). The number of avail
able tablet buttons can be determined with glutDe
viceGet(GLUT_NUM_TABLET_BUTTONS). The state is either
GLUT_UP or GLUT_DOWN indicating whether the callback was
due to a release or press respectively. The x and y call
back parameters indicate the window relative coordinates
when the tablet button state changed.
Registering a tablet button callback when a tablet device
is not available is ineffectual and not an error. In this
case, no tablet button callbacks will be generated.
Passing NULL to glutTabletButtonFunc disables the genera
tion of tablet button callbacks. When a new window is cre
ated, no tablet button callback is initially registered.
SEE ALSO
glutTabletMotionFunc, glutDeviceGet, glutMotionFunc,
glutSpaceballMotionFunc
AUTHOR
Mark J. Kilgard (mjk@nvidia.com)
GLUT 3.7 1
