One directional access to the clipboard (OS to Emacs: no, Emacs to OS: yes)

Question

Is it possible that Emacs ignores the system clipboard? I mean when outside of Emacs I copy something, Emacs ignores it. But not vice-versa, i.e., I would like to be able to have the access to the content of Emacs kill ring when I work in an external program (i.e. notapad). To be precise, the question is related to Microsoft Windows, but it is relavant for ther OS's.

Answer 1

Try the following:

(setq interprogram-paste-function nil)