Here are some Tricks to take a Screen Shot on a Mac
- Command-Shift-3: Take a screenshot of the screen, and save it as a file on the desktop
- Command-Shift-4, then select an area: Take a screenshot of an area and save it as a file on the desktop
- Command-Shift-4, then space, then click a window: Take a screenshot of a window and save it as a file on the desktop
Grab and Preview
In Mac OS X 10.4, the Preview application can also be used to take screenshots, by using the Grab submenu in the File menu.