glutSpaceballRotateFunc(3GLUT) GLUTglutSpaceballRotateFunc(3GLUT)

NAME
glutSpaceballRotateFunc - sets the Spaceball rotation
callback for the current window.

SYNTAX
void glutSpaceballRotateFunc(void (*func)(int x, int y, int z));

ARGUMENTS
func The new spaceball rotate callback function.

DESCRIPTION
glutSpaceballRotateFunc sets the Spaceball rotate callback
for the current window. The Spaceball rotate callback for
a window is called when the window has Spaceball input
focus (normally, when the mouse is in the window) and the
user generates Spaceball rotations. The x, y, and z call-
back parameters indicate the rotation along the X, Y, and
Z axes. The callback parameters are normalized to be
within the range of -1800 to 1800 inclusive.

Registering a Spaceball rotate callback when a Spaceball
device is not available is ineffectual and not an error.
In this case, no Spaceball rotate callbacks will be gener-
ated.

Passing NULL to glutSpaceballRotateFunc disables the gen-
eration of Spaceball rotate callbacks. When a new window
is created, no Spaceball rotate callback is initially reg-
istered.

SEE ALSO
glutSpaceballMotionFunc, glutSpaceballButtonFunc, glutMo-
tionFunc, glutTabletMotionFunc, glutDeviceGet

AUTHOR
Mark J. Kilgard (mjk@sgi.com)

GLUT 3.2 1