Making screenshots

[Brittany]

I know you can add a camera on the bottom bar but how can i make
screenshots only on an application? 

thanks

-- 
Brittany
Operating system used by Fedora Core release 1.90 (FC2 Test 1)
Linux 2.6.1-1.65
Emailer Ximian Evolution 1.5.3 (1.5.3-1)
Website: http://www.redhat.com/
Fedora downloads http://download.fedora.redhat.com/pub/fedora/linux/core/1/i386/iso/
Redhat downloads http://ftp.redhat.com/pub/redhat/linux/9/en/iso/i386/