hwTimestamp property
Returns the time at which the pointer data was reported by the hardware, in microseconds.
This property is read-only.
Syntax
HRESULT get_hwTimestamp(
[out] unsigned long long *ptr
);
Property values
Type: unsigned long long
Remarks
This value should be used only to calculate the elapsed time between pointer events for tasks such as determining velocity of a pointer. The hwTimeStamp property is not related to the system time, so only the difference between subsequent values is the important data.
For general time keeping you should use the IDOMEvent::timeStamp property.