How you can Deal with your Print Screen Button?

I think every body knows the funciton of Prt Scrn but threre is difference b/w Pnt Scrn & Alt- Print Screen Button. If you simply press Print Screen Button after open a image from any site, here you can copies the entire windows to the Clipboard, and if you press Alt- Print Screen Button, Windows copy the active window only.





Alt+ Print Screen



Simple Print Screen