TwainExtraImageInformation Class

Summary

Provides support for getting extra image information.

Syntax
C#
VB
C++
public class TwainExtraImageInformation : IDisposable 
Public Class TwainExtraImageInformation  
   Implements System.IDisposable  
public ref class TwainExtraImageInformation : public System.IDisposable   

Example
C#
VB
using Leadtools; 
using Leadtools.Twain; 
 
public void TwainExtraImageInformationConstructorExample(IntPtr parent) 
{ 
   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 
      //. 
   } 
   catch (Exception ex) 
   { 
      MessageBox.Show(ex.Message); 
   } 
   finally 
   { 
      extraImgInfo.Dispose(); 
   } 
 
   session.Shutdown(); 
} 
Imports Leadtools 
Imports Leadtools.Twain 
 
 
Public Sub TwainExtraImageInformationConstructorExample(ByVal parent As IntPtr) 
   Dim session As TwainSession = New TwainSession() 
   session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None) 
 
   Dim extraImgInfo As TwainExtraImageInformation = 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 
      '. 
   Catch ex As Exception 
      MessageBox.Show(ex.Message) 
   Finally 
      extraImgInfo.Dispose() 
   End Try 
 
   session.Shutdown() 
End Sub 

Requirements

Target Platforms

Help Version 20.0.2019.9.19
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Leadtools.Twain Assembly