Returns the FingerUnselectMode for this instance, which dictates whether the grab defined by this rule ends when any of its required fingers release, or when all of them do.

This property checks whether this grab can be performed using only fingers marked FingerRequirement.Optional.

Indexer for retrieving and setting FingerRequirements by their HandFinger type.

Standard definition for "palm grab": requires the middle three fingers to begin a grab, allowing that grab to persist as long as any finger continues grabbing.

Standard definition for "pinch grab": allows grabbing to begin when any of the first three fingers (thumb, index, middle) grabs, persisting the grab as long as any of those three is grabbing, and ignoring the last two fingers.

Standard definition for "full grab": requires all five fingers to begin a grab, allowing that grab to persist as long as any finger continues grabbing.

In-place modifies a HandFingerFlags bit mask representing the grabbing state of the various fingers, suppressing any detected grabs by fingers marked FingerRequirement.Ignored in this rule.

Projecting constructor which creates a new GrabbingRule as a subset of another.