SnagIt

If you prepare instructions for using any kind of computer or software—computer books, magazine articles, or how-to materials of any kind—you may already be familiar with this amazing screen-capture program. It captures any window, menu, or area of the Windows screen and saves it as a graphics file that you can print or pop into a layout program.

In Mac OS X, this feature is built right in. Here’s how to capture:

  • The whole screen. Press Shift--3 to create a picture file on your desktop, in PNG format, that depicts the entire screen image. A satisfying camera-shutter sound tells you that you were successful.

    The file is called Picture 1. Each time you press Shift--3, you get another file, called Picture 2, Picture 3, and so on. You can open these files in Preview, Photoshop, or another graphics program, in readiness for editing or printing.

  • One section of the screen. You can capture only a rectangular region of the screen by pressing Shift--4. When you drag and release the mouse, you hear the camera-click sound, and the Picture file appears on your desktop as usual.

  • One menu, window, icon (with its name), or dialog box. Once you’ve got your menu or window open onscreen, or the icon visible (even if it’s on the Dock), press Shift--4. But instead of dragging diagonally, press the space bar.

    Now your cursor turns into a tiny camera. Move it so that the misty highlighting fills the window or menu you want to capture—and then click. The resulting Picture file snips the window or menu neatly from its background. (Press the space bar a second time to exit “snip one screen element” mode and return to “drag across an area” mode.)

Tip

If you hold down the Control key as you release your fingers from the click or drag (using any of the techniques described above), you copy the screenshot to your Clipboard, ready for pasting, rather than saving it as a new graphics file on your desktop.

Mac OS X also offers another way to create screenshots: a program called Grab, which offers a timer option that lets you set up the screen before it takes the shot. It’s in your Applications→Utilities folder.

But if you’re really serious about capturing screenshots, you should opt instead for Snapz Pro X (www.ambrosiasw.com), which can capture virtually anything on the screen—even movies of onscreen procedures, along with your narration—and save it in your choice of format.

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