how to enable ultrasonic detection

[remy]

Hello,

I would like to enable the ultrasonic detection on multiple scans (CANON, FUJITSU, KODAK) with my application in C#.
I saw more topics using parameters 0x8031 or 0x8032 but it does not work

[fct]

It depends on the manufacturer of the scanner. They use custom caps with values that change depending on the brand and/or model.

I’ve solved it “sniffing” what the scanner TWAIN UI modifies using twirl.

This is the tutorial I wrote for that:
http://fmct.blogspot.com/2009/09/guessing-twain-custom-capabilities.html

[remy]

thanks you fct, 😀 😀

I’ll do this for all scanners….
For the scanner canon 5010C, this caps is 8040 !

[Author]

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