[linux] keylog

I wanted to find out how to simulate keyboard signal, so that I can free from enter duplicate character

first windows.h is for windows 2000, so it's doesn't work
getchar can work, but only show output when ends with enter everytime ...
that's not what I want.

use this code can get keylog
http://fanli7.net/a/bianchengyuyan/C__/20121224/277901.html

but I still need keyboard simulator...