Printing what the participant sees on the screen

Hi,
I was wondering if there was any possible way of printing the output of a medialab file so that it looks the same as what participants see on the screen.

I had to do this as part of an appendix for my dissertation. There is no built in function in the program to do it, so I just ran a sample session and pressed the "print screen" key and then pasted the image into an image editor (I use [I]Irfanview[/I], but any editor would do--probably even [I]Word[/I] would take the paste). It's very manual, because you have to do one screen at a time, but it works.