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SERVICE Sp problem Trouble arrow What are TWAIN and WIA? Scanning



What are TWAIN and WIA? Scanning
 
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What are TWAIN and WIA?

TWAIN and WIA are standards for communicating between imaging devices (e.g. scanners) and software applications.

TWAIN

If you have a scanner and it is "TWAIN compliant", you can use it to scan directly into any software application that supports TWAIN, for example a raster to vector conversion program. This means that after you scan, the scanned image will appear in the application already open.

When you scan using an application that supports TWAIN, the scanning dialog and the options it contains are specified by your scanner's manufacturer (Canon, Epson, HP, Contex, Graphtec etc.) and will therefore vary depending on the type of scanner you have.

"The word 'twain' is an archaic form meaning 'two'. It appears in Kipling's 'The Ballad of East and West' - '... and never the twain shall meet ...', reflecting the difficulty, at the time, of connecting scanners and personal computers. It was up-cased to TWAIN to make it more distinctive. This led people to believe it was an acronym, and then to a contest to come up with an expansion. None were selected, but the entry 'Technology Without An Interesting Name' continues to haunt the standard." (From the Free On-line Dictionary of Computing.)

WIA

WIA (Windows Image Acquisition) is a Microsoft utility that is supplied as part of Windows. Like TWAIN, WIA allows you to scan directly with a "WIA compliant" scanner into any application that supports WIA or TWAIN - all TWAIN compliant applications support WIA as well.

Unlike TWAIN, however, the scanning dialog that appears when you scan and the controls on it are variations on a basic Microsoft design. This means that the level of functionality and scanning control that are available in a WIA interface are less comprehensive than in a well-written TWAIN interface.

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  1. What are TWAIN and WIA?

    www.rastertovector.com/.../what-are-twain-...Μετάφραση αυτής της σελίδας
    Like TWAIN, WIA allows you to scan directly with a "WIA compliant" scanner into any application that supports WIA or TWAIN - all TWAIN compliant applications ...
  2. Windows Image Acquisition (WIA) (Windows) - MSDN

    msdn.microsoft.com/.../ms630368(v=vs.85...Μετάφραση αυτής της σελίδας
    WIA drivers are loaded in the WIA service process, thus providing a more stable driver environment. Applications can be initiated from the scanner scan button ...
  3. Windows Image Acquisition - Wikipedia, the free encyclopedia

    en.wikipedia.org/.../Windows_Image_Acq...Μετάφραση αυτής της σελίδας
    Windows Image Acquisition (WIA; sometimes also called Windows Imaging Architecture) is a ... Also, WIA supports push scanning and multi-image scanning.

 

2014-08-02 

 

 

 


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