Does anyone know how to work with text that has been cut or copied?

I have been trying to develop a form containing a large text box. I want the user to select a portion of the text (click and drag over the text) and then right click to a menu to get the database to copy that text to another text box on a different form.


I can use the SendKeys action to perform a Ctrl C but don't know how to paste this into another text box.

Any ideas gratefully received.