Precision touchpad windows 10.Precision Touchpad Devices

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Precision touchpad windows 10.Precision touchpad tuning

- Windows Precision Touchpad Implementation Guide | Microsoft Docs

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. There are several approaches an OEM can take to adjust the default touchpad experience on their Windows-based device.

Be aware that serious problems can occur if the registry is modified incorrectly. Ensure these steps are followed carefully. For additional protection, back up the registry before modification. See How to back up and restore the registry in Windows.

The tunable registry values described below are all located in the touchpad device's HKR hardware key:. On versions of Windows prior to version , only the global location was supported. The default global location is:. This enables the ability to override defaults from the HKR location on a per-value basis. AAP is a feature of Precision Touchpads that suppresses certain actions like mouse moves and taps for a short time after keyboarding events.

The specific timeouts depend on the type of action and the region of the touchpad receiving input, as well as the user setting called Touchpad sensitivity found in Touchpad settings. More sensitive means less time is spent suppressing input after keyboarding events. Windows defines two classes of "Curtain" regions on the touchpad to help prevent accidental input when users are resting their hands on the keyboard or touchpad during normal use. This splits the touchpad into three regions:.

Even when specifying curtain sizes explicitly, it is strongly recommended to provide the physical touchpad positioning information via SpaceBarOffset and HorizontalOffset. This is necessary for Windows to make decisions around a consistent and predictable user experience when switching between keyboarding and pointing.

If the three values CurtainLeft , CurtainRight , and CurtainTop are found, Curtains will be constructed using these as distances from the respective edges. If all three of these values are not found, the legacy configuration see Legacy Curtains below will be used next, followed by defaults. The legacy algorithm for configuring curtains changes curtain sizes depending on the vertical location of touchpad event, and isn't as flexible for customization.

Going forward, it is recommended that only SpaceBarOffset and HorizontalOffset values be set, and curtains be otherwise configured through CurtainTop The high sensnistivy region is intended to stay responsive even during or immediately after keybaord use.

The width of the region on either side of the center line Zone Width in the diagram above is defined as:. Note that this means the total width of the region is twice this value.

SpacebarOffset is taken into account for the region, since proximity to the keyboard increases risk of palm contact. The height of the region is defined in relation to the space bar and stretches to the bottom of the touchpad. Distance to the top of the zone is defined as:.

The restricted sensitivity zone is the lowest sensitivity region of the touchpad. It is designed for the region of the touchpad where users would not leave fingers during intentional use.

Note these are very small by default and should only be widened for very large devices. The top, left, and right zones' sizes are defined independently as a distance from their respective edge. They use the registry keys shown in the following table. The following registry values allow the configuration of the right click zone. The height is expressed by RightClickZoneHeight as a percentage of the height of the entire touchpad measured from the bottom edge.

RightClickZoneWidth is also a percentage of the width, measured from the right edge in right-handed, and the left edge in left-handed configurations when the swap mouse buttons option is enabled.

OEMs are capable of changing the default haptic intensity value for a haptic enabled Precision Touchpad, by editing the following registry key:. To ensure a great user experience, haptic feedback should be enabled by default. Therefore, the allowable values for FeedbackIntensity are 25, 50, 75, and , with a default value of To ensure that haptic feedback is enabled by default, the FeedbackEnabled registry value should remain set to 1. Setting the following key is equivalent to the user choosing "Most sensitive", which disables AAP.

When this key is set, the Touchpad sensitivity setting in Windows Settings shown above has no effect. This value is halved to determine the cursor speed notch in the settings page. This lets you add more granular speed options in the future if needed.

The default cursor speed is selected according to Fitts' law as the speed that makes target acquisition most efficient. The cursor speed is also changeable by users through the settings page, not just the registry.

The registry changes described above only change the default speed for new users. Windows provides a registry setting that lets you exempt specific devices. Structuring this key is similar to forcing a legacy touchpad to show up See Legacy touchpad forced detection for more details. Windows currently does not provide a way to modify the Precision Touchpad PTP two-finger scrolling speed. Skip to main content. This browser is no longer supported.

Download Microsoft Edge More info. Table of contents Exit focus mode. Table of contents. Note To ensure that haptic feedback is enabled by default, the FeedbackEnabled registry value should remain set to 1. In this article.