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GetVersion Method

Summary

Gets the TWAIN version currently used by this twain session.

Syntax

C++

public TwainVersion GetVersion()

Public Function GetVersion() As TwainVersion

public: 
TwainVersion GetVersion();

Return Value

the TWAIN version currently used by this twain session, see TwainVersion for a list of available versions.

Remarks

This method is used to get the TWAIN version currently used by this Twain session.

Example

using Leadtools; 
using Leadtools.Twain; 
 
public void GetVersionExample(IntPtr parent) 
{ 
   TwainSession session = new TwainSession(); 
 
   try 
   { 
      session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None); 
 
      if (session.SelectSource(string.Empty) != DialogResult.OK) 
         MessageBox.Show("Error Selecting Source"); 
 
      TwainVersion twainVersion = session.GetVersion(); 
      if (twainVersion == TwainVersion.Version1) 
         MessageBox.Show("Currently using TWAIN 1.x version"); 
      else 
         MessageBox.Show("Currently using TWAIN 2.x version"); 
   } 
   catch (Exception ex) 
   { 
      MessageBox.Show(ex.Message); 
   } 
 
   session.Shutdown(); 
}

Imports Leadtools 
Imports Leadtools.Twain 
 
Public Sub GetVersionExample(parent As IntPtr) 
   Dim session As New TwainSession() 
 
   Try 
      session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None) 
 
      If session.SelectSource(String.Empty) <> DialogResult.OK Then 
         MessageBox.Show("Error Selecting Source") 
      End If 
 
      Dim twainVersion As TwainVersion = session.GetVersion() 
      If twainVersion = TwainVersion.Version1 Then 
         MessageBox.Show("Currently using TWAIN 1.x version") 
      Else 
         MessageBox.Show("Currently using TWAIN 2.x version") 
      End If 
   Catch ex As Exception 
      MessageBox.Show(ex.Message) 
   End Try 
 
   session.Shutdown() 
End Sub

Requirements

Target Platforms

Reference

QuerySourceInformation Method

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Help Version 21.0.2021.6.30

Leadtools.Twain Assembly

Introduction

Getting Started

Namespaces

Leadtools.Twain Namespace

Assemblies