When you take print screen, you get two option, One is Save or copy to clipboard. It will be nice if somebody can add "Open in GIMP" option so that we can directly open the taken screen shot for editing like crop , rotate etc. Concept picture is attached ,Here is the source code for gnome-screenshot , http://svn.gnome.org/viewvc/gnome-utils/trunk/gnome-screenshot/
this need C++ programming with G++
One can see how "Copy to clipboard" was added by Ebassi , have a look on corresponding bug and diff files.
By- Narendra Sisodiya