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Questions tagged [twain]

TWAIN is a standard software protocol and applications programming interface (API) that regulates communication between software applications and imaging devices such as scanners and digital cameras.

282 questions
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10 answers

.NET Scanning API

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

Twain device (scanner) control in Java

I want to scan a number of papers through Java. I found the mm's computing twain library. When I run the example TwainExample.java at the site, I receive this error. uk.co.mmscomputing.device.twain.TwainIOException: Cannot load Twain Source…
Any Thing
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Interfacing with the end-user's scanner from a webapp (web/scanner integration)

Consider the following scanning procedure in a typical document handling webapp: The user scans a document using a scanner connected to his/her computer The scanned image is saved locally on the user's computer as a BMP/JPG/TIF/PNG file The user…
knorv
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2 answers

Simulating a TWAIN Device

Our company is using some software that ONLY accepts input from an "Imaging Device" i.e. a TWAIN device (e.g. scanner). The problem is that we are receiving our files digitally, so using an actual scanner would require us to print, scan, and shred…
biggusjimmus
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3 answers

Using a scanner without dialogs in C#

I'm building a .Net 4.0 application for remote control of a scanner device. I have tried both TWAIN and WIA libraries, but I have the same problem. Scanning images without scanner selection and scanning settings dialogs. I found a useful article on…
Miljenko Barbir
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14
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2 answers

TWAIN scanning components for Delphi

I need to add TWAIN scanning to an Delphi application and am having trouble locating an off-the-shelf component to do so. I downloaded TDelphiTwain but, when used in D2010 on Windows Vista, it does not appear to recognize any Twain sources on my…
Larry Lustig
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3 answers

Getting Java and TWAIN to play together nicely

I'm working on building an app to scan directly from TWAIN scanner to a Java applet. I'm already aware of Morena and JTwain, but they cost money. I need free. I could re-invent the wheel with JNI, but it seems like someone has probably already done…
jacobko
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3 answers

Twain question: is it possible to scan just one document from feeder?

I am playing with the code from http://www.codeproject.com/KB/dotnet/twaindotnet.aspx I am having a problem because twain returns control only after all documents in feeder are scanned. This leads to high memory usage if I scan 20 or more…
Deepak
8
votes
3 answers

Canon TWAIN scanner stuck on 'Warming up' for minutes

I'm trying to interface with a TWAIN-compliant multifunction printer and scanner, a Canon Pixma MG5750, from C# using the NTwain library. I'm writing a program to scan an image into an Image object. The scanner has to warm up before scanning the…
Aaron Christiansen
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8
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5 answers

Accessing scanner at client side from a web page without applet

I want to acces a scanner at client side, before I was using java applet without problem but after chrome has decided to not support java what can I do. If there's solution with JS, Jquery or other language please tell me
taha yahia
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8
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1 answer

TWAIN/WIA implementation for JAVA

I am working on an application(Java Applet) that interacts with scanner. I understand I need a Twain library or WIA library to make it work in windows. But I am not sure what are the differences of two? I am trying to use this…
Mo3z
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5 answers

How do I check if the scanner is plugged in (C#, .NET TWAIN)

I'm using the .NET TWAIN code from http://www.codeproject.com/KB/dotnet/twaindotnet.aspx?msg=1007385#xx1007385xx in my application. When I try to scan an image when the scanner is not plugged in, the application freezes. How can I check if the…
SelvirK
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3 answers

Simulate or Virtual Twain source for Twain development

For developing a web based scan solution, I would love to test it on Windows or Mac without actually hooking up a scanner to my box. So is there a program/tool that emulates or gives me a virtual twain source with some default image data?
wolle
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7
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4 answers

Wrapper class for WIA/TWAIN for a C# application?

Is there a wrapper class somewhere for WIA/TWAIN functionality in a C# application? Every search I make points to the same old 2001 CodeProject page, there has to be something new out there, right? Maybe I'm not looking in the right place. :P I…
delete
6
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3 answers

C# TWAIN interaction

I'm trying to set up a C# application which uses TWAIN example from code project This works fine except that I need to cast Form to IMessageFilter and call IMessageFilter.PreFilterMessage() to catch TWAIN callbacks. Also I need to start this…
Valentin V
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