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Eugene Wang 2017-02-02 19:56:25 -05:00
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README.md
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TWAIN Application-Side Library # TWAIN Application-Side Library
==============================
Info ## Info
--------------------------------------
This is a library created to make working with [TWAIN](http://twain.org/) interface possible in dotnet. This is a library created to make working with [TWAIN](http://twain.org/) interface possible in dotnet.
This project has these features/goals: This project has these features/goals:
@ -14,8 +12,7 @@ The solution contains tester projects in winform, wpf, and even console usage.
A nuget package is also [available here](https://www.nuget.org/packages/ntwain) A nuget package is also [available here](https://www.nuget.org/packages/ntwain)
(NOTE: this doc describes v3. For older version go to Source and choose v2 branch for its doc.) (NOTE: this doc describes v3. For older version go to Source and choose v2 branch for its doc.)
Using the lib ## Using the lib
--------------------------------------
To properly use this lib you will need to be reasonably familiar with the TWAIN spec To properly use this lib you will need to be reasonably familiar with the TWAIN spec
and understand how it works in general (especially capability). and understand how it works in general (especially capability).
The TWAIN spec can be downloaded from [twain.org](http://twain.org/). The TWAIN spec can be downloaded from [twain.org](http://twain.org/).
@ -133,8 +130,7 @@ session.Close();
``` ```
Caveats ## Caveats
--------------------------------------
At the moment the DataTransferredEventArgs only provides conversion routine to At the moment the DataTransferredEventArgs only provides conversion routine to
an image stream when using native transfer. an image stream when using native transfer.
If other transfer methods are used you'll have to deal with them yourself. If other transfer methods are used you'll have to deal with them yourself.
@ -154,8 +150,7 @@ application due to their use of modal dialogs, so if you find yourself in that p
you'll have to find another way to synchronize data to UI threads. you'll have to find another way to synchronize data to UI threads.
Using the new twaindsm.dll ## Using the new twaindsm.dll
--------------------------------------
By default NTwain will use the newer [data source manager](http://sourceforge.net/projects/twain-dsm/files/TWAIN%20DSM%202%20Win/) By default NTwain will use the newer [data source manager](http://sourceforge.net/projects/twain-dsm/files/TWAIN%20DSM%202%20Win/)
(twaindsm.dll) if available. To override this behavior (twaindsm.dll) if available. To override this behavior
set the PlatformInfo's PreferNewDSM flag to false. This is necessary due to some older sources not working with the newer dsm. set the PlatformInfo's PreferNewDSM flag to false. This is necessary due to some older sources not working with the newer dsm.
@ -172,4 +167,4 @@ NTwain.PlatformInfo.Current.PreferNewDSM = false;
If the application process is going to be running in 64-bit then this flag will have no effect and you will If the application process is going to be running in 64-bit then this flag will have no effect and you will
always need to have the twaindsm installed. always need to have the twaindsm installed.
If the scanner's TWAIN driver is still 32-bit then you'll have need to compile the application exe in x86 or you won't see the driver. If the scanner's TWAIN driver is still 32-bit then you'll have need to compile the application exe in x86 or you won't see the driver.