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public TwainJpegCompression GetJpegCompression(bool defaultValues)
defaultValues
Flag that indicates whether to get the current or the default compression settings.
A TwainJpegCompression object that contains the specified TWAIN JPEG compression options.
This method will get the current or default TWAIN JPEG compression settings, depending on the flag passed to the flag parameter. For more information, refer to Using JPEG Compression For A TWAIN Source.
using Leadtools;using Leadtools.Twain;public void GetJpegCompressionExample(IntPtr parent){TwainSession session = new TwainSession();session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None);string jpegdata;try{TwainJpegCompression twainJpeg = session.GetJpegCompression(false);int[] quantMap = twainJpeg.GetQuantizationMap();int[] haffmanMap = twainJpeg.GetHuffmanMap();TwainMemoryData[] quantTable = twainJpeg.GetQuantizationTable();TwainMemoryData[] haffmanDC = twainJpeg.GetHuffmanDC();TwainMemoryData[] haffmanAC = twainJpeg.GetHuffmanAC();jpegdata = String.Format(@"Color Space = {0}\nQuantMap = {1}\nGetHuffmanMap = {2}\nGetQuantTable Flags = {3}\nGetQuantTable Length = {4}\nGetQuantTable Data = {5}\nGetHuffmanDC Flags = {6}\nGetHuffmanDC Data= {7}\nGetHuffmanAC Flags = {8}\nGetHuffmanAC Data = {9}\n",twainJpeg.ColorScheme,quantMap[0],haffmanMap[0],quantTable[0].Flags,quantTable[0].Length,quantTable[0].Data,haffmanDC[0].Flags,haffmanDC[0].Data,haffmanAC[0].Flags,haffmanAC[0].Data);MessageBox.Show(jpegdata);}catch (Exception ex){MessageBox.Show(ex.Message);}session.Shutdown();}