>I want to add a toolbar button that will do a print screen. This has got to be fairly simple - I've looked at some stuff in the files here, but they're more complex than I want (and require user interface). I've tried KEYBOARD, but no go. Someone has done this in code in vfp5 or 6, maybe?

Steve Ruhl has a nice peice of code here on UT to do what you want - take a look in the Files Section.