DataTransfer Property

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public TwainDataTransferProperties DataTransfer {get; set;}

'Declaration
 
Public Property DataTransfer As TwainDataTransferProperties

'Usage
 
Dim instance As TwainProperties
Dim value As TwainDataTransferProperties
 
instance.DataTransfer = value
 
value = instance.DataTransfer

public TwainDataTransferProperties DataTransfer {get; set;}

 get_DataTransfer();
 set_DataTransfer(value);

public:
property TwainDataTransferProperties DataTransfer {
   TwainDataTransferProperties get();
   void set (    TwainDataTransferProperties value);
}

Property Value

TwainDataTransferProperties structure contains Image effects data class.

This property should be called after calling the get TwainSession.Properties property After you update this structure, you can update the TWAIN source by calling the set TwainSession.Properties property.

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

Public Sub DataTransferPropertyExample(ByVal parent As IWin32Window)
      Try
         Dim session As TwainSession = New TwainSession()
         session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None)

         Dim props As TwainProperties = session.Properties
         Dim dataTransfer As TwainDataTransferProperties = props.DataTransfer

         dataTransfer.FillOrder = TwainDataTransferFillOrder.LsbFirst
         dataTransfer.BufferedMemoryCompression = TwainCompressionMode.None
         dataTransfer.TransferMechanism = TwainTransferMechanism.Memory
         dataTransfer.ScanFileFormat = TwainFileFormat.Bmp
         dataTransfer.MemoryBufferSize = 1024
         dataTransfer.SaveToOneFile = True
         dataTransfer.AppendToFile = False
         dataTransfer.DumpMemoryBuffersToFile = True
         dataTransfer.FileName = Path.Combine(LEAD_VARS.ImagesDir, "test.bmp")

         props.DataTransfer = dataTransfer
         session.Properties = props
         session.Shutdown()
      Catch ex As Exception
         MessageBox.Show(ex.Message)
      End Try
   End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

public void DataTransferPropertyExample(IWin32Window parent)
   {
      try
      {
         TwainSession session = new TwainSession();
         session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None);

         TwainProperties props = session.Properties;
         TwainDataTransferProperties dataTransfer = props.DataTransfer;

         dataTransfer.FillOrder = TwainDataTransferFillOrder.LsbFirst;
         dataTransfer.BufferedMemoryCompression = TwainCompressionMode.None;
         dataTransfer.TransferMechanism = TwainTransferMechanism.Memory;
         dataTransfer.ScanFileFormat = TwainFileFormat.Bmp;
         dataTransfer.MemoryBufferSize = 1024;
         dataTransfer.SaveToOneFile = true;
         dataTransfer.AppendToFile = false;
         dataTransfer.DumpMemoryBuffersToFile = true;
         dataTransfer.FileName = Path.Combine(LEAD_VARS.ImagesDir, "test.bmp");

         props.DataTransfer = dataTransfer;
         session.Properties = props;
         session.Shutdown();
      }
      catch (Exception ex)
      {
         MessageBox.Show(ex.Message);
      }
   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

TwainProperties Structure
TwainProperties Members