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DataTransfer Property
See Also 
Leadtools.Twain Namespace > TwainProperties Structure : DataTransfer Property



Gets or sets data transfer properties for the current data source.

Syntax

Visual Basic (Declaration) 
Public Property DataTransfer As TwainDataTransferProperties
Visual Basic (Usage)Copy Code
Dim instance As TwainProperties
Dim value As TwainDataTransferProperties
 
instance.DataTransfer = value
 
value = instance.DataTransfer
C# 
public TwainDataTransferProperties DataTransfer {get; set;}
C++/CLI 
public:
property TwainDataTransferProperties DataTransfer {
   TwainDataTransferProperties get();
   void set (    TwainDataTransferProperties value);
}

Property Value

TwainDataTransferProperties structure contains Image effects data class.

Example

Visual BasicCopy Code
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
C#Copy Code
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";
}

Remarks

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.

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7

See Also