Just downloaded latest Wink and did a quick test:
http://www.doconnel.force9.co.uk/squeak/wink/

As you can see, it captures the mouse ok but not morphs attached to
the hand. This took me 2 mins in total, most of that was resizing the
squeak window and actually doing something in squeak. Wink made the
rest a brainless exercise, which is lucky because mine is not working
too well this morning, lol. BTW I had not actually used Wink before
this, just remembered it was considered a good application.

Karl, thanks for the info.