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In terms of usability, Jing is very simple and straightforward. When the application is open, an unobtrusive yellow icon sits at the top middle of your desktop screen – this denotes that Jing is running in the background and ready to be accessed whenever you're ready to take a screenshot or record a sequence of screen events.
Hovering the mouse over the yellow half-circle will cause three more circles to come into view. The left-most circle is the one you'll need to click on when you're ready to capture a snapshot or record a video. Clicking on the middle circle will call up a history screen with recently captured images and movies. Other options, such as the Help menu and Preferences settings, can be accessed by clicking on the circle to the far right.

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When you click on the Capture button, you'll first be presented with a cross-hairs tool that lets you manually draw a box around the area of your screen that you want to capture. After drawing this rectangle, you can select whether you want to just snap a simple screenshot or record a stream of activities on your desktop.
If you choose the Capture Video option, a short countdown will start to let you know when the software is about to begin recording. You can pause and resume the video at any time, and clicking the Stop button will end the capture session. From this point, you can choose to save the video to your computer, share through Screencast.com, or edit the video in Camtasia Studio (if you happen to have that software installed as well).