Migrating application code from the STU 530 to STU 540
For the 540 you need at least release 5.4.2 of the STU Driver.
For the STU SDK existing code must be reworked because the 540 returns pen data in a different format and therefore PenDataOptionMode must be set correctly.
For the Signature SDK the 540 should work with existing code if that code only uses the standard dynamic capture function to address the pad or tablet.
If your code uses the wizard control then you must install at least release 3.19.2.
We would always recommend testing existing code first in case there are issues.
Please note that the 540 has additional benefits which greatly improve response time over the 530, especially if the onboard images are used.