I know on Windows 8 you can use this hidden shortcut to take a screenshot of the screen and copy it to your clipboard, but I'm looking for an application where I can either set up a shortcut or has its own shortcut which would then save the current window to my clipboard.
I don't care about editing the images, saving them anywhere, anything fancy. All I want is to be able to put it on the clipboard so I can easily open up Imgur or SE chat and paste to upload them.
Optimally, there'd be another alternative shortcut which would let me select which area of the screen to actually take a screenshot of, but that's not a requirement. In a dream work I'd basically have a 1-to-1 clone of the OS X utility Grab but I don't think anything that easy exists.