Pen API Functions

The Pen Application Programming Interface (API) provides functions that can be divided into 10 broad categories. The following table describes the 10 categories. Other tables list the functions within each category.

Function category
Description
System and hardware
Provide information about pen hardware and current system assumptions.
Display
Display ink data, get screen information.
Pen data
Collect, copy, move, and delete data in an HPENDATA object.
Recognition
Recognize handwritten characters.
Symbol manipulation
Collect and convert symbols returned from a recognizer.
Time intervals
Manipulate time intervals associated with pen strokes.
Compression
Reduce the size of an HPENDATA object.
Utility
Miscellaneous utility services provided by the system.
Hook
Program hooks to monitor inking or recognition.
Obsolete
Obsolete functions of version 1.0 maintained by version 2.0 only for compatibility reasons.

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