Signature
glutTabletButtonFunc(
function
)
Specify handler for GLUT 'TabletButton' events
def handler( (int) button, (int) state, (int) x, (int) y ):
return None
Parameters
| Variables | Description |
|---|---|
| func |
The new tablet button callback function.
|
Description
glutTabletButtonFunc
sets the tablet button callback for the current window. The tablet button
callback for a window is called when the window has tablet input focus (normally, when the mouse is in the window) and
the user generates tablet button presses. The
button
parameter will be the button number
(starting at one). The number of available tablet buttons can be determined with
glutDeviceGet(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
callback 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 generation of tablet button
callbacks. When a new window is created, no tablet button callback is initially registered.