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How to keep track of cursor positiion in multi-line textbox?

I'm writing a simple asp.net (with vb.net) guestbook application. I wan't
the users to be able to insert a emoticon in there message by clicking on
the emoticon of there choice. After clicking on the emoticon a little piece
of text will be added to there message (e.g. :smile:) at the exact location
where the cursor was before they clicked the emoticon.

How can I keep track of the cursos position to do this?

TIA.
Nov 20 '05 #1
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