Kevin,
You can use the ClipCursor API, you can find an example here:
http://news2news.com/vfp/?example=80&function=118
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges