.NET Scanning API [closed]

问题:

Is there any free or commercial component written in .NET (no COM interop) that will work with most twain scanners?

回答1:

In my company we use Pegasus. It's great.

回答2:

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. :)

回答3:

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.

回答4:

Take a look at CodeProject: .NET TWAIN image scanning That might give you a good start.

回答5:

+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.

回答6:

I found NTwain via Nuget, which satisfied me.

回答7:

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.

回答8:

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.

回答9:

I just saw another Scanning question that referenced a 3rd party commercial product to add to the list: ImageMan

Looks like a single developer license starts at $325. I haven't used it personally, but is one of three or four products I'm evaluating.

回答10:

Just started a project in .net and found great info here (*dead link as of Feb 2014) about using Windows Image Acquisition. Lots of sample VB code and some c#.