OEM_PENPACKET

2.0     

A pen packet used by Pen API, version 2.0, consisting of the information received from the pen device for a single sample. For a definition of pen packet, see SetPenHook232HBDD.

typedef struct { 

     UINT wTabletX;

     UINT wTabletY;

     UINT wPDK;

     UINT rgwOemData[MAXOEMDATAWORDS];

     DWORD dwTime;

} PENPACKET;

Members

wTabletX

The x-dimension in raw tablet coordinates.

wTabletY

The y-dimension in raw tablet coordinates.

wPDK

Pen hardware state bits, expressed as a combination of PDK_ values.

rgwOemData[MAXOEMDATAWORDS]

Array of OEM-specific data. MAXOEMDATAWORDS is defined as 6.

dwTime

Time stamp indicating when the pen packet originated.

Comments

A pen packet is the basic unit of communication between the pen driver and Windows. A pen packet contains all of the information about a single logical event: x-y coordinate position, button states, and any optional information such as pressure or barrel rotation. Several physical events that is, interrupts may be needed to construct a single logical event.

The rgwOemData member contains the data relating to the OEM hardware, such as pen pressure, angle, and so forth.

See Also