There seem to be two issues here: 1) getting the data out of your perl app, and 2) getting the data into the other application. Gtk-perl lets you access the clipboard via GTK::Editable. You can select data and paste it into the clipboard under program control. This solves number 1. Number 2 is harder: there is no guarantee that a given X program is "friendly" enough to accept clipboard data (although most probably are). Also, you'd need to be able to tell that application, "Get the data in the clipboard now and paste it at the insertion point." I know of no universal way to do that.

Gtk-Perl does support drag-and-drop so you may be able to talk to another app that knows drag-and-drop, but again, that is not universal.

I'm not sure what you really want to do, but if your goal is to talk to netscape see this article for information on how to control a netscape session from the command line (or system/backticks in perl).

You might also want to see this page for a scheme for doing something similar to what you describe. It uses X directly and I don't know of any perl bindings supporting that.

HTH, --traveler