Is it possible to take a snapshot of whatever is on your
screen?
Back in the days of DOS, the PrintScrn key used to print the
screen. But in all versions of Windows, this works differently,
and the name of the key is now an anachronism.
To use the key, press it to capture an image of the entire
screen, or press alt-PrintScrn to capture an image of the active
window. Either one captures the image to the Windows clipboard.
Once it's in the clipboard you can paste (Ctrl-V) it into any
application that supports graphics (Windows Paint, other graphics
programs, even your favorite word processor). You can edit or add
to the image as you wish, then print it.
This ability to manipulate the image in a program before printing
it is an improvement over the original DOS method of just
printing it. But if you'd like that old facility back, there are
several third-party freeware/shareware programs that can do this.