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- This topic has 3 replies, 2 voices, and was last updated 9 years ago by Kaij.
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I think I read somewhere that Microsoft and scanner manufacturers had agreed not to provide TWAIN x64 support under Windows x64… 🙁
Can anyone confirm that, or provide any background to the lack of TWAIN support from x64 software?
Thanks!
I think I read somewhere that Microsoft and scanner manufacturers had agreed not to provide TWAIN x64 support under Windows x64… 🙁
That information is not correct. TWAIN supports Windows x64 from TWAIN version 2.0. onwards.
A 64 bit DSM and some good describtion can be found at http://sourceforge.net/projects/twain-dsm/files/TWAIN%20DSM%202%20Windows%2032%2B64/
As additional explanation: On a 64 bit Windows you can run 32 bit and 64 bit applications. 32 bit applications see only 32 bit TWAIN drivers and 64 bit applications can only use 64 bit TWAIN drivers.
Hope that helps you.
Best regards,
Kaij
http://www.jse.deThank you for your reply but I think we may be slightly at cross purposes…
@Kaij wrote:
On a 64 bit Windows you can run 32 bit and 64 bit applications. 32 bit applications see only 32 bit TWAIN drivers and 64 bit applications can only use 64 bit TWAIN drivers.
Yes… Some software is available in x32 and x64 versions and both can be run on 64 bit Windows, the x32 version normally being installed in C: Program Files (x32) and the x64 version normally being installed in C:Program Files, and possibly running faster and avoiding memory restrictions.
But in a default Windows 64 bit installation it is only possible to scan using TWAIN from x32 software, as Windows includes TWAIN x32 support but not TWAIN x64 support. 🙁
A 64 bit DSM and some good description can be found at http://sourceforge.net/projects/twain-dsm/files/TWAIN%20DSM%202%20Windows%2032%2B64/
Yes, I have been aware of the Sourceforge third-party TWAIN DSM x64 utility for some time, but not being familiar with the TWAIN interface and finding the description slightly confusing, I wasn’t sure if it provided an easy way to enable TWAIN scanning from x64 software. It looks as if it probably does… 😀
@cday wrote:
I think I read somewhere that Microsoft and scanner manufacturers had agreed not to provide TWAIN x64 support under Windows x64… 🙁
I’m sure I read that somewhere but 6-months on I haven’t been able to find it again. 🙁
My post was really to ask for confirmation of that and any background for Microsoft not including TWAIN x64 support in Windows 64 bit.
I wondered if Microsoft might have been keen to push its own WIA x64 interface in place of TWAIN, which from what I’ve read is generally considered an inferior interface. ❓
Yes, I have been aware of the Sourceforge third-party TWAIN DSM x64 utility for some time
The 64 bit DSM is no third party product. It comes from the TWAIN Working Group.
My post was really to ask for confirmation of that and any background for Microsoft not including TWAIN x64 support in Windows 64 bit.
I wondered if Microsoft might have been keen to push its own WIA x64 interface in place of TWAIN, which from what I’ve read is generally considered an inferior interface.
I cannot comment on the Microsoft strategy. But from performance and features WIA is no alternative to TWAIN.
Best regards,
Kaij
http://www.jse.de- AuthorPosts