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twister is a dosadi tool (free) that produces a report on a device driver’s (lack of) support for twain. http://www.dosadi.com/twister.htm
run the tool and post the report here. Without dosadi, a lot of twain applications wouldn’t exist and learning twain would take much longer.
Also of interest on their site is the ‘vendors & devices’ http://www.dosadi.com/vendors.htm page where you can read some of their comments.
And then of course their twister report archive http://www.dosadi.com/twister-reports.php is invaluble if you ever face the question “what devices will your application work with”
In the twain toolkit I wasn’t thinking you’d check your code so much as run it and send all of the triplets you are sending in code and see (by sending a get after each set) if the driver is accepting the triplets you’re sending or not.
this is all just verification if your code even needs work, seems that it could be the case that the code is fine and that the vendor’s driver isn’t doing quite what the spec says.
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