Scribble in gtk tutorial

[Jyothi <jyothi ncoretech com>]

Hi,

In the scribble-xinput, when I press on Input-dialog, it say no input
devices with a close button.
How to solve this problem ??? What are these input devices ? Is it the
mouse or stylus ??. If so how do I specify it ??..

Thanks in Advance,
Jyothi.