The JDD_SETCALIBRATION message requests the driver to set calibration information. The driver uses the calibration values to map the physical device coordinates to the logical coordinate range established by the driver.
JDD_SETCALIBRATION returns MMSYSERR_NOERROR.
The calibration settings consist of base and delta values for each coordinate. The base value represents the lowest logical value the driver returns; the delta value is the multiplier to use when converting the actual value returned by the device to a logical value appropriate for the established value range.