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The Display manager interface is shown in the figure:

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The Screen activation group

The Screen activation group is used for selecting and activating the required Display.

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The Computer drop-down list is used for selecting a computer to which the required display is assigned. The list of computers available in the Computer drop-down list is set during the system configuration - see Configuring the Display manager.

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The Monitor drop-down list is used for selecting the required Video surveillance monitor, created on the basis of the Display object selected in the Screen activation group.

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The layouts list is used for selecting the existing layouts, as well as deleting them and creating the new ones (buttons - and +, respectively). You can search for layouts by name using the Layout field. To change the order in which the layouts are displayed, use the ▼ and ▲ buttons.

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The cameras list displays the available video cameras. You can search for a camera by name or ID using the Camera field. The cameras can be added to the layout only once. The cameras which are already added to the layout are highlighted in gray. You can drag the cameras from this list onto the layout using the left mouse button. When dragging the camera, the frame displayed on the camera at the moment when it was added to the layout will be displayed on the layout.

Below the cameras list, the camera preview is displayed.

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The buttons for managing the layouts:

• Apply - save —save changes in the layout.
• Cancel - cancel —cancel changes and go to the last saved layout.
• Show - display —display the selected layout on the selected Video surveillance monitor without saving itmonitor. The layout is shown in its last saved version and only if it needs to be displayed on the Computer selected for screen activation.
• Clear - remove —remove all cameras from the layout.
• Refresh - refresh —refresh the frames in the camera preview windows on the layout.
• Layouts - select —select a standard layout from the list:

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The layout creation panel allows you to get a visual idea of how the layout will look on the Video surveillance monitor. On this panel, you can drag the Surveillance windows, add new rows and columns, and resize the Surveillance windows using the>, <, ∨, ∧ buttons. If the layout was created using the Display manager, then the frames displayed on the camera at the moment when it was added to the layout will be displayed in the Surveillance windows. If the layout was created using the Video surveillance monitor, then in order to display these frames in the Surveillance windows, it is necessary to click on the Refresh button.

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