You could (through the API) read the clipboard, manipulate that data,
wipe the clipboard, and restore new data to it, though. I
kinda/sorta do that with my ConClip tools
(
http://vb.mvps.org/tools/ConClip), to actually "strip" the
formatting off the clipboard. This is essentially the same as, but
far easier than, pasting into Notepad and copying back out. (I use
it so often, that I actually keep an icon on my Desktop to clean the
clipboard with a doubleclick!) You'd have to be pretty nutz to take
that to the next level, and try messing with the "rich" formats,
though. <g>