Samsung SNP-1000A - Manual (Page 49)

4.1. How to Use Web Viewer
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4.1.3. Area Zoom guide
Area Zoom function supports easy and fast PTZ (Pan/Tilt/Zoom)
control for the selected image area on the monitor.
Screen image of menu popped up by clicking mouse right button
ƒ Clicking mouse right button delivers menu of Area Zoom function.
Screen image of Area Zoom pointer appeared by Area Zoom selection
ƒ Clicking Area Zoom menu delivers Area Zoom mode showing yellow colored
Area Zoom pointer at the center of monitor.