Using sendMessage and all that stuff, I want to have 2 identical richtextboxes (rtb1 and rtb2) I would type where I want to go in rtb1, click command1, and rtb2 would scroll to where rtb1 is scrolled to. Say I was typing in line 235 in rtb1. I would hit command1 and rtb2 should scroll to line 235. Any ideas how?