DRV_CALBSTRUCT

typedef struct {
    DWORD dwOffsetX;
    DWORD dwOffsetY;
    DWORD dwDistinctWidth;
    DWORD dwDistinctHeight;
} DRV_CALBSTRUCT;
 

If points need to be calibrated after arriving from the hardware, the values in this structure are used to convert them.

dwOffsetX

The number of units (in 0.01 inch) to displace the x-value from the tablet. A negative number will shift it left. A positive number will shift it right.

dwOffsetY

The number of units (in 0.01 inch) to displace the y-value from the tablet. A negative number will shift it up. A positive number will shift it down.

dwDistinctWidth

The number of units (in 0.01 inch) that the hardware can generate in the x-direction.

dwDistinctHeight

The number of units (in 0.01 inch) that the hardware can generate in the y-direction.