How to Capture a Screenshot in a MacBook
It can be useful to capture a screenshot of your MacBook, a laptop computer made by Apple. For example, you could have an instant messaging window open next to a photo that the person you are chatting with is describing as you perform a joint critique, or you want to make a record of the current price of an item at an online auction displayed in a window of the Safari Web browser. You can easily take a screenshot using a free utility that Apple installs on every MacBook.
Click the "Grab" icon in the Dock of your MacBook to launch Apple's screenshot utility. If it is not in your dock, you can find it in the Application folder's Utility folder.
Click "Capture" from the Grab menu.
Click "Screen" when you want to capture an image of the entire screen of your MacBook. The "Screen Grab" window pops up. Click any area outside of the "Screen Grab" window to capture a screenshot of the entire screen.
Click "Window" when you want to capture an image of a specific window, such as a list of files in a Finder window or a page in the Safari Web browser. The "Window Grab" window pops up. Click "Window," and then click the window you want to capture an image of.
Click "Selection" when you want to capture a screenshot of a specific area on the screen, such as a two-inch strip along one side where you have a lot of folders on the desktop. The "Selection Grab" window pops up. Drag the cursor across an area of the screen to select it, with the selection's borders appearing outlined in red. Release your finger from the MacBook's multi-touch trackpad to capture a screenshot of the area you selected.
Click "Save" from the Grab menu to change a screenshot's name from the initial "Untitled" name it has when you create it, and then type a new name. Click a folder on your MacBook where you want to save the screenshot image, and then click "Save."