Public Sub SetJpegCompression( _
   ByVal compression As TwainJpegCompression, _
   ByVal resetValues As Boolean _
) 

Dim instance As TwainSession
Dim compression As TwainJpegCompression
Dim resetValues As Boolean
 
instance.SetJpegCompression(compression, resetValues)

public void SetJpegCompression( 
   TwainJpegCompression compression,
   bool resetValues
)

public:
void SetJpegCompression( 
   TwainJpegCompression compression,
   bool resetValues
) 

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

   Try
      Dim myJpeg As TwainJpegCompression = session.GetJpegCompression(False)
      Dim data As TwainMemoryData() = New TwainMemoryData(0) {}

      myJpeg.ColorScheme = TwainColorScheme.Gray
      myJpeg.SubSampling = &H10001000
      myJpeg.ColorComponentCount = 1
      myJpeg.RestartFrequency = 0

      Dim quantMap As Integer() = New Integer(0) {}
      quantMap(0) = 0
      myJpeg.SetQuantizationMap(quantMap)

      Dim haffmanMap As Integer() = New Integer(0) {}
      haffmanMap(0) = 0
      myJpeg.SetHuffmanMap(haffmanMap)
      myJpeg.SetQuantizationTable(data)
      myJpeg.SetHuffmanDC(data)
      myJpeg.SetHuffmanAC(data)

      session.SetJpegCompression(myJpeg, False)
      MessageBox.Show("Set JPEG compression options is success")
   Catch ex As Exception
      MessageBox.Show(ex.Message)
   End Try

   session.Shutdown()
End Sub

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

   try
   {
      TwainJpegCompression myJpeg = session.GetJpegCompression(false);
      TwainMemoryData[] data = new TwainMemoryData[1];

      myJpeg.ColorScheme = TwainColorScheme.Gray;
      myJpeg.SubSampling = 0x10001000;
      myJpeg.ColorComponentCount = 1;
      myJpeg.RestartFrequency = 0;

      int[] quantMap = new int[1];
      quantMap[0] = 0;
      myJpeg.SetQuantizationMap(quantMap);

      int[] haffmanMap = new int[1];
      haffmanMap[0] = 0;
      myJpeg.SetHuffmanMap(haffmanMap);
      myJpeg.SetQuantizationTable(data);
      myJpeg.SetHuffmanDC(data);
      myJpeg.SetHuffmanAC(data);

      session.SetJpegCompression(myJpeg, false);
      MessageBox.Show("Set JPEG compression options is success");
   }
   catch (Exception ex)
   {
      MessageBox.Show(ex.Message);
   }

   session.Shutdown();
}