how to constrain the cursor in just one screen.

["Liu Jie" <liucoldstar gmail com>]

Hi,

I'm working a GTK based applicaion, which uses double screens.

Without any constraint, the user can move the cursor freely from one
scrren to another.
Now, I want to constrain the cursor in just one screen.

How can I do it? Is there a gtk function which can help me solve my problem?

Andy