Is there any free or commercial component written in .NET (no COM interop) that will work with most twain scanners?
+3
A:
Take a look at CodeProject: .NET TWAIN image scanning That might give you a good start.
Redbaron
2008-09-02 11:35:55
+3
A:
Microsoft have an API all about scanning. It's called Windows Image Acquisition and you can read a great Coding4Fun article about it by none other than Scott Hanselman here.
Matt Hamilton
2008-09-02 11:37:20
A:
Just started a project in .net and found great info here about using Windows Image Acquisition. Lots of sample VB code and some c#.
Crippeoblade
2008-09-16 15:04:24
+3
A:
Disclaimer: I work for Atalasoft
Atalasoft has a product, DotTwain, which has no COM interop (just direct calls to the twain dll from .NET) and gives you a completely .NET interface. It can be embedded in a browser hosted WinForms control, for instance, because it doesn't use COM.
Lou Franco
2008-09-22 00:56:47
Just to save anyone looking for a "low budget" approach, as of 8/20/10 DotTwain is $700 for the first SDK and Additional SDKs are $234. Server licensing seems to start at $400, but things get murky there on the pricing info page. http://www.atalasoft.com/products/dotimage/dottwain/pricing
Jeremy
2010-08-31 03:20:54
Also, it's runtime-royalty free, which isn't true for all of the other commercial products listed for this question.
Lou Franco
2010-08-31 12:15:36
+1
A:
The Accusoft Pegasus .NET component is called TwainPRO, and it's included in the ImagXpress SDK.
The ImageGear .NET toolkit from Accusoft Pegasus also includes a full-managed implementation of Twain.
since OP mentioned the word "Free", I'll add that Accusoft ImagXpress starts at $999 for the "standard" dev kit (pro kit is $2k), and then server deployment licensing per year is a hair shy of $2k for two cores. (minimum 2 cores) No perpetual licensing is available. http://www.accusoft.com/imagxpresspricing.htm
Jeremy
2010-08-31 03:17:23
+4
A:
TwainDotNet
I've just wrapped up the code from Thomas Scheidegger's article (CodeProject: .NET TWAIN image scanning) into a Google code project: http://code.google.com/p/twaindotnet/
I've cleaned up the API a bit and added WPF support, so check it out. :)
Luke Quinane
2009-06-22 12:02:57
+4
A:
+1 for Atalasoft
Technical quibble: You can avoid COM, but you can't avoid Interop: TWAIN is a native Win32 or Win64 DLL that is not part of Windows proper and is unknown to the CLR, so at the bottom, either in your code or the component you use, there are Interop calls to unmanaged code. Given what I know about TWAIN drivers, maybe I should say to very unmanaged code...
I've always had the impression that WIA was great for digital cameras, OK for consumer flatbeds, and not a serious contender for 'production scanning' - meaning something like full-speed multipage scans from a document feeder, under application control, using a USD400+ scanner. I've never heard of anybody doing production scanning through WIA, but I'd sure like to hear from somebody who's done this.
Spike0xff
2009-07-02 23:59:35
We considered it but stuck with TWAIN because Fujitsu's official line is they don't support WIA in their high end scanners.
Filmund
2009-08-12 10:56:17
+1. Not for AtalaSoft, but for the general comments about COM/Interop and WIA.
David HAust
2010-03-15 00:06:53