Wacom Ink SDK for devices
Does the CDL support air strokes?
On some devices, when the pen is close to the surface but not making contact its position is reported in the pen data stream.
This is sometimes referred to as ‘air strokes’ or proximity data, where the pen X/Y coordinates are reported with zero force values.
CDL v1.x does not support this data type and the data is filtered out of the WILL Ink Stroke data.
This data will be supported in later versions with RAW data mode.