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 Application Delphi 64 bits with TWAIN

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T O P I C    R E V I E W
cyrille Posted - Jun 03 2024 : 08:39:13
Good morning.
Under Delphi 11.3, in a 64-bit application. Is it possible to access all system scans, even those that only have their 32-bit drivers?

Example :
Scan Samsung SCX-3205x.
It is recognized under Windows 11 with the HMI delivered with it as well as 32b applications but not by 64b applications.

Can specialized classes for scans (TIEAcquireParams; TIETwainParams; TIEWia etc...) get around the problem?

Thank you in advance for your answer

cc
1   L A T E S T    R E P L I E S    (Newest First)
xequte Posted - Jun 03 2024 : 23:27:38
Hi

Unfortunately most scanner manufacturers do not include 64bit drivers at all, so you should check whether there are any available for that device.

You should use WIA instead of Twain. For 64bit support on Windows, manufacturers usually include a "WIA over Twain" driver.

If you need to test 64bit Twain support, you can use the FreeImage Software scanner driver:

https://sourceforge.net/projects/twain-samples/files/TWAIN%202%20Sample%20Data%20Source/

Nigel
Xequte Software
www.imageen.com