On your keyboard, above your insert/home/pg up keys, and to the right of your F12 key, is the print screen key, which takes a screenshot of whatever's displayed on your monitor. (Or at least that's where the print screen key is on typical keyboards. It might be in a different spot on laptops)
That's how you capture the image. After that you just trim out the stuff that's not important.
Was longer, but Linux messed up on me. *kicks Linux*
I am the workingman, the inventor, the maker of the world's food and clothes. I am the audience that witnesses history. - Carl Sandburg, I am the People, the Mob
Who wants to become a writer? And why? Because it’s the answer to everything. It’s the streaming reason for living. To note, to pin down, to build up, to create, to be astonished at nothing, to cherish the oddities, to let nothing go down the drain, to make something, to make a great flower out of life, even if it’s a cactus. — Enid Bagnold