giving the focus to a windows with GLUT

Does someone know a mean to give the focus to a windows in a GLUT program which contains several subwindows (without a mouse clicking from the user)?

Thanks

Originally posted by fredocom:
[b]Does someone know a mean to give the focus to a windows in a GLUT program which contains several subwindows (without a mouse clicking from the user)?

Thanks[/b]

Maybe glutSetWindow does this?