How to scan and save picture in ASP.NET?

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Hi guys,
I'm building a WebApp that has to use scanner on client, scan a picture, save it on server and save some data about picture in database.
I've done it using WIA with windows forms app, but how to use it with ASP.NET?

Posted 4-May-11 9:06am

askaris

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Sergey Alexandrovich Kryukov 5-May-11 11:32am

Thanx guys. I was afraid of such answer Big Grin | :-D When I was building Windows Forms app all the user had to do is press a button on the form to scan and after that to press a button to save the picture. Assuming that this web app will be used within a corporate network, the solution that insludes ActiveX component would be acceptable. But, could you post me some link where someone has done something similar? That would be very helpful.

Sergey Alexandrovich Kryukov 5-May-11 11:35am

I advise to use my recipe. This is very basic functionality, just a POST form with one file upload. There are millions of samples.
--SA

2 solutions

Solution 2

Peter is absolutely right.

In addition to what he says, I can tell what is the only acceptable solution. I'm telling this like a user. The user should be advised to scan a document independently and post a bitmap file (PNG, JPG) on the Web form. If the user has a scanner, she or he is supposed to know how to scan. Allowing to access my scanner is unsafe.

—SA

Posted 4-May-11 16:15pm

Sergey Alexandrovich Kryukov

Updated 5-May-11 5:31am

v2

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Pete O'Hanlon 5-May-11 2:01am

Spot on. I couldn't agree more.

Sergey Alexandrovich Kryukov 5-May-11 11:31am

Thank you, Pete.
--SA

Sergey Alexandrovich Kryukov 5-May-11 11:34am

@askaris, we have consensus here.
I suggest you formally accept this answer as well and follow this way.
--SA

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Pete O'Hanlon · Accepted Answer · 2011-05-04T09:19:00

Directly speaking, you can't. When you think about it, you'll see why - your browser is sandboxed to prevent it getting unsecured access to your machine.

There are a couple of potential solutions, but they are hackish, unsecure, and rely on your clients only using Windows machines.

The first solution is to write an ActiveX component which will be installed on the web page, and can get access outside the browser sandbox.

The second solution is to use ClickOnce to download an Windows Forms application to the client PC and use that to scan the image in. With this solution, you'd need to provide a web service at the server end to allow the application to write the image back to - you'd also need to ensure that the application was downloaded every time (so you'd set it up not to install on the PC), and you'd want to pass a querystring to it to identify the client you're saving the records for.