VPEND_INIT

typedef struct {
  LPDWORD lpDataType;
  LPDWORD lpNumberOfPenPackets;
  LPDWORD lpOffsetIntoBuffer;
  LPDWORD lpIndexIntoBuffer;
  LPDWORD lpPenPacketBuffer;
  LPDRV_PENINFO lpPenInfo;
  LPSTR lpOEMBuffer;
  LPDWORD lpfnEntryPoint;
} VPEND_INIT;

Used when the pen driver initializes along with the virtual pen driver. VPEND_INIT contains the pointers and any other extra information that the virtual pen driver will need when pen hardware interrupts need to be serviced.

lpDataType

A far pointer to a DWORD that is set with a data type value before the driver is called to service the pen interrupt. Data type values are used to indicate the interrupt-time driver event type.

lpNumberOfPenPackets

A far pointer to a DWORD that is set to the number of pen packets in the pen-packet buffer that need to be serviced when the pen interrupt occurs.

lpOffsetIntoBuffer

Not used.

lpIndexIntoBuffer

A far pointer to a DWORD that is set with the index location in the pen packet buffer where the first pen packet resides when the pen interrupt occurs.

lpPenPacketBuffer

A far pointer to a DRV_PENPACKET buffer of size 32 bytes.

lpPenInfo

A far pointer to a DRV_PENINFO structure that is filled with the current hardware capabilities when the driver requests it.

lpOEMBuffer

A far pointer to a buffer that holds OEM-specific data.

lpfnEntryPoint

A far pointer to the routine that processes the pen interrupts.