Native linux copy/paste

Hi,

I'm using Pgadmin a lot and i'm runing GNU/Linux.
Is there a raison that pgadmin doesn't support native X11 copy/paste 
(from the mouse : select to copy and 3rd button to paste) ?
I'm not a cpp developper, but it seems that thereis a function in 
wxClipboard for this :

UsePrimarySelection 
<http://docs.wxwidgets.org/2.9/classwx_clipboard.html#ec2787c528e42791547a424e647b9dc2> 
(bool primary=false)  On platforms supporting it (all X11-based ports), 
wxClipboard <http://docs.wxwidgets.org/2.9/classwx_clipboard.html> uses 
the CLIPBOARD X11 selection by default.

Regards and thanks for this great job !

Philippe