VoyForums
[ Show ]
Support VoyForums
[ Shrink ]
VoyForums Announcement: Programming and providing support for this service has been a labor of love since 1997. We are one of the few services online who values our users' privacy, and have never sold your information. We have even fought hard to defend your privacy in legal cases; however, we've done it with almost no financial support -- paying out of pocket to continue providing the service. Due to the issues imposed on us by advertisers, we also stopped hosting most ads on the forums many years ago. We hope you appreciate our efforts.

Show your support by donating any amount. (Note: We are still technically a for-profit company, so your contribution is not tax-deductible.) PayPal Acct: Feedback:

Donate to VoyForums (PayPal):

[ Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1, 2, 3, 4, [5], 6, 7, 8, 9, 10 ]

[ Next Thread | Previous Thread | Next Message | Previous Message ]

Date Posted: 07:07:22 07/16/02 Tue
Author: Michel
Subject: Re: twain driver for camera in XP
In reply to: andy dyble 's message, "Re: twain driver for camera in XP" on 16:37:20 07/15/02 Mon


Hi Andy,

Thanks for the info on this. Did the resolution indicated solve the problem in your case?

Best regards,

Michel

>Seems like this (below) is the reason.
>
>Some Programs May Not Work with a Scanner or a Camera
>When You Upgrade to Windows XP (Q300462)
>
>The information in this article applies to:
>
>Microsoft Windows XP Professional
>Microsoft Windows XP Home Edition
>
>SYMPTOMS
>Some programs (that are supplied by hardware
>manufacturers) that support imaging devices, such as,
>scanners and cameras, may not work when you upgrade
>your
>computer to Windows XP and use Windows Image
>Acquisition
>(WIA) drivers.
>
>CAUSE
>This problem can occur because the operating systems
>that
>existed before Windows XP do not have any signed WIA
>drivers that are related to still imaging devices. When
>Microsoft Windows 98, Microsoft Windows Millennium
>Edition (Me), or Microsoft Windows 2000 is upgraded to
>Windows XP, the technology without an interesting name
>(TWAIN) drivers that had been previously installed are
>removed because WIA drivers are available.
>
>NOTE : The TWAIN drivers are produced by independent
>hardware vendors (IHVs). TWAIN is an image capture
>application programming interface (API) that is used by
>Microsoft Windows and Apple Macintosh operating
>systems.
>WIA drivers are signed drivers that enable the
>automatic
>detection and installation of still imaging devices.
>
>
>
>RESOLUTION
>To work around this problem, remove the WIA driver and
>reinstall the IHV driver as the WIA drivers can provide
>less features than the previously installed IHV
>drivers.
>To return to the full functionality that is provided by
>third-party programs that are available when you use
>IHV
>drivers you must:
>
>Remove the program.
>
>
>Remove the WIA driver by using Device Manager.
>
>
>Install the IHV driver by using Device Manager.
>
>
>Reinstall the program.
>
>
>STATUS
>Microsoft has confirmed this to be a problem in the
>Microsoft products that are listed at the beginning of
>this article.
>
>MORE INFORMATION
>WIA drivers provide more stability than the previous
>TWAIN and Still Image (STI) drivers, which had been
>created for the previous Windows operating systems.
>However, after you upgrade your computer to Windows XP,
>you may have problems with your imaging devices because
>the IHV drivers that had been removed (during the
>upgrade
>process) had previously enabled you to use the full
>functionality of the software that came with the
>imaging
>device.
>
>WIA data sources use the Scanner And Camera Wizard as
>the
>primary tool to obtain and alter images. Only when you
>use a WIA driver is the Scanner And Camera Wizard able
>to
>detect (and use) the data source. Also, some
>third-party
>programs have limited functions that are available when
>they are used with WIA drivers. In most situations, the
>imaging device is not recognized by the manufacturer-
>supplied program when you use WIA drivers. The Scanner
>And Camera Wizard and the MSPaint.exe program are
>currently the only programs that can natively enable
>you
>to obtain pictures from a still imaging device when you
>use WIA drivers.
>
>NOTE : There are a limited number of devices that have
>WIA drivers that are automatically available after the
>installation of Windows XP. Additional signed WIA
>drivers
>are going to be produced by hardware manufacturers for
>Windows XP.

[ Next Thread | Previous Thread | Next Message | Previous Message ]

Replies:

[ Contact Forum Admin ]

Forum timezone: GMT-5
VF Version: 3.00b, ConfDB:
Before posting please read our privacy policy.
VoyForums(tm) is a Free Service from Voyager Info-Systems.
Copyright © 1998-2019 Voyager Info-Systems. All Rights Reserved.