GetVersion Method

C#
Visual Basic
Java
Objective-C
C++

public TwainVersion GetVersion()

'Declaration

Public Function GetVersion() As TwainVersion

'Usage

Dim instance As TwainSession
Dim value As TwainVersion
 
value = instance.GetVersion()

public:
TwainVersion GetVersion();

Return Value

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

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

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

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 = TwainSession.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

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 = TwainSession.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();
}

Target Platforms

Reference

TwainSession Class
TwainSession Members
IsAvailable Method
SetVersion Method
QuerySourceInformation Method