Taking Screenshots is OS X

OK, so our Apple's didn't come with that handy "Print Screen" button, so in OS X have to use obscure key combos.

Table 1: Built-in Mac Screenshot Commands

Key Combination	Result
Command+Shift+3	Capture entire screen and save as a file
Command+Control+Shift+3	Capture entire screen and copy to the clipboard
Command+Shift+4	Capture dragged area and save as a file
Command+Control+Shift+4	Capture dragged area and copy to the clipboard
Command+Shift+4 then Space bar	Capture a window, menu, desktop icon, or the menu bar and save as a file
Command+Control+Shift+4 then Space bar	Capture a window, menu, desktop icon, or the menu bar and copy to the clipboard

(This is from MacDevCenter)

Now, when using your Mac and Windows XP or Vista, you can press Fn + F11 to print screen, and you can print only the active window with Option + Fn + F11. (From The Sean Blog)