Specifications

CARROLL TOUCH Appendix D - CTKERN Function Reference
Touch System Programmer’s Guide D-25
Bit 15 = Default calibration flag.
0 = This entry is not the default calibration.
1 = This entry is the default calibration.
Notes
The internal calibration table consists of ten sets of calibration
parameters. The valid range for the calibration table index parameter is
0 through 9. If this function is called with a calibration table index
outside this range, the calibration status is set to 01, and the function
call has no effect.
The sum of the offset value and the span value must be less than or
equal to the frame size in both the x- and y-axes. If this is not the case,
the calibration status is set to 02, and the function call has no effect.
If the default calibration flag is set, the default calibration flag of all of
the other calibration table entries is cleared. This is done in order to help
ensure that there is only one default calibration.
Setting the calibration table entry for the calibration that is currently in
effect does not immediately affect the current calibration or scaling
parameters. For example, if the calibration mode is set to fixed and
calibration table entry 0 is the default calibration (Default Calibration
Flag =1), changing the calibration parameters for calibration table entry
0 using this function does not cause the current calibration parameters
to be changed. The previous calibration remains in effect, which can be
verified using GetCurrentCalibrationModeandParameters (5).
Sending SetCalibrationMode (3) with BL=01 (fixed) causes the new
calibration parameters to be read from the table and the new parameters
to become the current calibration parameters.