Signature
glutButtonBoxFunc(
function
)
Specify handler for GLUT 'ButtonBox' events
def handler( (int) button, (int) state ):
return None
Parameters
| Variables | Description |
|---|---|
| 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.