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DataTransfer Property
See Also  Example
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);
}

Return 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 = LeadtoolsExamples.Common.ImagesPath.Path + "test.bmp"

      props.DataTransfer = dataTransfer
      session.Properties = props
      session.Shutdown()
   Catch ex As Exception
      MessageBox.Show(ex.Message)
   End Try
End Sub
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 = LeadtoolsExamples.Common.ImagesPath.Path + "test.bmp"; 
 
      props.DataTransfer = dataTransfer; 
      session.Properties = props; 
      session.Shutdown(); 
   } 
   catch (Exception ex) 
   { 
      MessageBox.Show(ex.Message); 
   } 
}

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 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also