packet

A collection of pen data sent by the pen driver at a frequency determined by the sampling rate. Each packet contains the current coordinates of the pen, the time, and, optionally, other information. Collectively, the packets represent a digitized history of the pen's movement. See also sampling rate.

Software for developers

Delphi Components
.Net Components
Software for Android Developers

More information resources

MegaDetailed.Net
Unix Manual Pages
Delphi Examples