How to Print Screen to the Clipboard on a Mac

• Command+Control+Shift+3: take a screenshot of the entire screen, and saves it directly to the clipboard for pasting elsewhere
• Command+Control+Shift+4, then select an area: takes a screenshot of the selection using the rectangular drawing box, and saves it to the clipboard for pasting elsewhere
• Command+Control+Shift+4, then space, then click a window: takes a screenshot of a window as specified by the hovering snapshot cursor, and saves that capture to the clipboard for pasting