TwainDSM is crashing

[Philip Gwyn]

I have a program in C# that accesses TwainDSM via twain-cs. I’m scanning with a Kodak i1440 scanner. When I scan 8.5×11 or 8.5×14 pages, it works fine and reliably. The i1440’s automatic page size detection. But when I scan a cashier coupon (long and skinny) my program simply crashes – no error message, no stack trace.

In twaindsm.log, the last message is as follows, which is pretty useless.

[125757452 dsm.cpp  2368     0 000015B4] Quaero Scanner Workstation -> KODAK Scanner: i1410/i1420/i1440
[125757452 dsm.cpp  2373     0 000015B4] DG_CONTROL/DAT_CAPABILITY/MSG_GETCURRENT/ICAP_XFERMECH
[125757452 dsm.cpp  2432     0 000015B4] TWRC_SUCCESS TWON_ONEVALUE 

[125757453 dsm.cpp  2368     0 00001DC0] Quaero Scanner Workstation -> KODAK Scanner: i1410/i1420/i1440
[125757453 dsm.cpp  2377     0 00001DC0] DG_IMAGE/DAT_IMAGENATIVEXFER/MSG_GET
[125757605 dsm.cpp  2432     0 00001DC0] TWRC_XFERDONE

I have tried TWSX_NATIVE and TWSX_FILE with the same result.

[Philip Gwyn]

More details : TwainDSM 2.4.2
Same problem happening with a fujitsu fi-6130Z
A scan with a custom size of 4.2×11 (inches) works
A scan with a custom size of 4.125×11 (inches) crashes.

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