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#1 Posted : Thursday, January 11, 2007 6:19:41 AM(UTC)
Raymond Lee

Groups: Registered
Posts: 30


Hi,

I just browsed through the help file of leadtools v15, I found that it supports to get extended image information from TWAIN device. However, the help only lists this coding:

TwainSession session = new TwainSession(); 
   session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None); 
 
   TwainExtraImageInformation extraImgInfo = new TwainExtraImageInformation(2); 
   try 
   { 
      extraImgInfo.GetInformation(0).InfoId = TwainExtendedImage.BarcodeCount; 
      extraImgInfo.GetInformation(0).ItemType = TwainItemType.Uint32; 
      extraImgInfo.GetInformation(0).ConditionCode = TwainConditionCode.Success; 
      extraImgInfo.GetInformation(1).InfoId = TwainExtendedImage.BarcodeType; 
      extraImgInfo.GetInformation(1).ItemType = TwainItemType.Uint32; 
      session.UpdateExtraImageInformation(extraImgInfo); 
      //. 
      //. Do processing to returned values 
      //. 
   } 

I don't know what I should do in "Do processing to returned values" part. Any place I can find more sample code for .NET part? Any help demo do this?

Please kindly advised.

Thanks for your kind attention,

Raymond

 

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#2 Posted : Sunday, January 14, 2007 12:21:55 AM(UTC)

Qasem Lubani  
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Posts: 3,034

Was thanked: 2 time(s) in 2 post(s)


I currently don't have a sample that contains more details, but the following post contains a COM example that does:


http://support.leadtools.com/SupportPortal/cs/forums/9000/ShowPost.aspx#9000




Although the post uses a different version of
LEADTOOLS and a different programming interface, you might find useful tips by reading the code.

 
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