Twain or WIA? A bit lost between this two interface [closed]

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I need to write a c# assembly (DLL) in order to scan documents.
I don't know if I need to use TWAIN or WIA.

Anyone could help me please ?

• What are the différences?
• What are your advices ?
• Is there a c# Library ?

Answer 1

Generally, if your application is to interact with scanners, TWAIN is recommended. While for cameras, WIA offers better support.

So for document scanning solution, I would recommend TWAIN.

TWAIN.H file is a C/C++ header file. If you want to code it to .NET yourself, you can refer to this post to get some resources: Using TWAIN in .NET - Looking for resources

Or you can use a commercial .NET TWAIN component.