glutTabletMotionFunc - sets the special keyboard callback for the current
window.
void glutTabletMotionFunc(void (*func)(int x, int y));
- func
- The new entry callback function.
glutTabletMotionFunc sets the tablet motion callback for the current window. The
tablet motion 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 motion. The x and y callback parameters indicate the absolute position
of the tablet ``puck'' on the tablet. The callback parameters are normalized
to be within the range of 0 to 2000 inclusive.
Registering a tablet motion callback when a tablet device is not
available is ineffectual and not an error. In this case, no tablet motion
callbacks will be generated.
Passing NULL to glutTabletMotionFunc disables the generation of
tablet motion callbacks. When a new window is created, no tablet motion
callback is initially registered.
glutTabletButtonFunc, glutDeviceGet, glutMotionFunc, glutSpaceballMotionFunc
Mark J. Kilgard (mjk@nvidia.com)