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Usage Page/Digitizer

In-range

Top / In-range

Set when the finger or pen is detected while hovering over the digitizer or in contact with the digitizer surface.

Usage(0x32)

http://msdn.microsoft.com/en-us/library/windows/hardware/jj151564(v=vs.85).aspx

Windows Pointer Device Data Delivery Protocol/Button State Transitions

• http://msdn.microsoft.com/en-us/library/windows/hardware/jj151556(v=vs.85).aspx

メモ

• Up (Tip switch=0、In-range=1)とOut of Range (Tip switch=0、In-range=0)は別にレポートしなければいけない。
• Devices that do not support hovering do not need to include the In-range usage in their descriptor.

Windows 7/マルチタッチ

• If the device supports z-axis detection, it reports in-range when the transducer is within the region where digitizing is possible. If the device does not support z-axis detection, the driver should set in-range and tip switch when a finger comes in contact with the digitizer.
• https://msdn.microsoft.com/en-us/library/windows/hardware/ff553737(v=vs.85).aspx

関連

• Tip switch(0x42)