Do you need a program to record a screen area or do you need to record a screen area in Blitz3D?
If you mean in B3D then maybe take multiple screenshots of an area like this:
http://www.blitzbasic.com/codearcs/codearcs.php?code=1752
If you mean in B3D then maybe take multiple screenshots of an area like this:
http://www.blitzbasic.com/codearcs/codearcs.php?code=1752