In the example below, the monitor is a secondary monitor, monitor 2, and the touch desktop association has been correctly made.

This means that UPDD can cater with a system that has more than one monitor or more than one pointer device and any combination thereof can be supported.

For successful UPDD multi-monitor operation this layout information must correctly reflect your monitor setup.

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Therefore the UPDD driver can only support configurations that are identifiable by this function and in most cases we would expect this to handle most multi-monitor configurations.

To view the monitor layout as retrieved by our driver using this function use the monitors option of our command line utility.

In this case UPDD associates all the touch devices with the same monitor.

In this case each UPDD supported device is associated with an individual monitor; monitor 1, monitor 2 etc or a specified device name.

In this case each UPDD supported device is associated with a video segment of the virtual monitor that relates to the physical monitor.

In this case each UPDD supported device is associated with a video segment.

As long as the device can be connected via one of the supported hardware ports UPDD can be configured to support it.

If the setting monitorbind.displayname defines a display name that matches (or part matches) a display name listed on the system then the touch device will be associated with this monitor.

Run the UPDD configure function can be used to make the correct associations.

Manually set the setting MonitorNumber for the device.

This relationship is defined in the setting monitorsegmentmap.N.

This is a UPDD global setting so needs the NoDevice specification in the set command.

Taking 2x2 as an example the segments are numbered thus.

This straight-forward layout can be defined in the UPDD Console, Advanced, General, under All Devices or set on the device entry.

Allows for unusual size shape segments on the individual monitors.

Each logical monitor is associated with 3 physical monitors in a horizontal layout.

In this case it may be necessary to set the calibration.forcegeometry setting as appropriate.

We have implemented a few ways of defining this association.

A touch screen monitor is two totally independent devices, a video display and a touchscreen, with no known relationship between the devices.

The video driver will handle the display and UPDD will handle the touch.

On a single monitor system then obviously the touchdesktop association will be correct but in a multi-monitor layout it is likely that the association is incorrect, hence the need to run Configure to make the correct association.

With version 6.0.277 we have introduced a setting, monitorbind.displayname, to allow this automatic binding of a touchscreen to a display name such that the association will be made between the touchscreen and the monitor whenever it is discovered on the system.

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When this device is plugged into a Mac system the monitor is listed in the display properties as LEN LT1423pwC so we have set this name in the monitor bind key setting.

Now, when the monitor and touch screen are plugged in to a Mac system the touch device will automatically be associated with the correct monitordesktop.

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