| Microsoft DirectX 8.1 (Visual Basic) | 
Sets calibration points for the current instance.
Type DIPROPCPOINTS 
    lObj As Long
    lHow As Long
    dwCPointsNum As Long
    cp(MAXCPOINTSNUM) As CPOINT
End Type
If the lHow member is DIPH_BYOFFSET, this member must be a data format offset for the object whose property setting is set or retrieved.
If the lHow member is DIPH_BYUSAGE, the device must be a Human Interface Device (HID). The device object is identified by the HID usage page and usage values in packed form.
This property can be applied only to individual device objects, so DIPH_DEVICE cannot be used.