# Video Alignment (Calibration)

Video alignment or calibration as it is also called, ensures that the mouse cursor appears at the position of touch.

Elo uses a three-point calibration sequence that will accept touchscreens with any orientation of the X or Y axis, in landscape or portrait mode.

Once calibrated, the touchscreen will be ready to use automatically each time the system is restarted.

> ## Options to Launch

> The video alignment program may be launched six different ways:

> 1. During setup a checkbox may be selected to run the alignment program automatically after setup is completed.
> 2. Via the Elo Control Panel application by selecting the General tab and clicking the alignment program icon.
> 3. Via the Elo Control Panel application by selecting the Properties tab for the individual monitor and clicking the alignment program icon.
> 4. By clicking the Elo icon in the window task bar at the bottom right of the display and selecting the video alignment option from the dialog list.
> 5. By double clicking the Elo icon in the Windows task bar at the bottom right of the display. This will bring up the Elo Control Panel application and the alignment program may be run via option two or three listed above.
> 6. By running EloVa.exe directly from the Windows command line or \Windows\System32 directory.
> 7. By calling EloVa.exe directly from an application.

> ## Running the Alignment Program

> When you run EloVA using one of the options above, touch the three targets as they appear.

> You will then be asked to touch various points on the screen to verify that the cursor appears at the position touched. If the cursor appears at the position touched, click the green arrow. If the cursor does not appear at the position touched, click the blue curved arrow and the alignment program will run again.

> If you are using multiple monitors the alignment program will run on each individual monitor. If one of the monitors is not a touchmonitor, Press the Esc key on the keyboard and the alignment program will advance to the next monitor, or wait until the program times out as indicated by completion of the progress bar.

## Landscape/Portrait Mode

EloVA may be run in either landscape or portrait mode.

### Unusual Combinations of Expanded Desktop with Multiple Monitors

Unusual multiple monitor combinations may create an expanded Windows desktop that is not recognized by the default video resolutions built into the EloVA program. For this reason, an auxiliary file, EloVideo.txt, is available to supplement the defaults. If you are running an expanded desktop multiple monitor resolution that is not multiples of standard monitor resolutions, you may experience difficulties in calibrating all of your monitors properly. Contact Elo Applications Engineering for availability and details of the use of this file.

### Target Locations on the Screen

When a touchscreen is mounted on to a monitor and the touch targets for calibration are not visible, target locations can be defined in an auxiliary file.

Target locations for every monitor can be defined in a configuration file, EloTarget.conf. Contact Elo Application engineering for availability and details of the use of this file.

### Video Alignment for Capacitive Touchscreens

Video alignment for capacitive touchscreens follows a different procedure than that of the standard Elo video alignment. When running EloVa using one of the options above, the standard video alignment touch target window will appear on the screen. Once the first target is touched, the screen will change informing the user not to touch the screen.

Once the initialization has been complete, the user should touch the screen. Data is now being collected. Continue to touch the screen until notified.

Follow the same procedure for all 3 targets as they appear.

Confirm the alignment by touching various locations on the screen and verifying that the cursor appears in the position touched. If the cursor appears at the position touched, click the green arrow. If the cursor does not appear at the position touched, click the blue arrow and the alignment program will run again.

If you are using multiple monitors the alignment program will run on each individual monitor. If one of the monitors is not a touchmonitor, Press the Esc key on the keyboard and the alignment program will advance to the next monitor, or wait until the program times out as indicated by completion of the progress bar.