I have put advanced theme in the TinyMCE (3.4.X) configuration and is working fine.
I have disabled Right-Click in DOM so that the user cannot copy/paste anything to the page and it has been done successfully using JQuery.
But, inside this editor it does not seem to be possible at all. I have tried to remove 'contextmenu' from plugin list. But it removed the editor's right-click menu and now its showing browsers normal right click menu and using that a user can do copy/paste activities. So, please let me know whether I can disable both type of context menus.
Thanks :)-