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TwainJpegCompression Structure Members

Summary

The following tables list the members exposed by TwainJpegCompression.

Public Methods

Name Description
Public Method GetHuffmanAC Gets AC Huffman tables.
Public Method GetHuffmanDC Gets DC Huffman tables.
Public Method GetHuffmanMap Gets mapping of components to Huffman tables.
Public Method GetQuantizationMap Gets information about the mapping of components to quantization tables.
Public Method GetQuantizationTable Gets quantization tables.
Public Method SetHuffmanAC Sets AC Huffman tables.
Public Method SetHuffmanDC Sets DC Huffman tables.
Public Method SetHuffmanMap Sets mapping of components to Huffman tables.
Public Method SetQuantizationMap Sets mapping of components to quantization tables.
Public Method SetQuantizationTable Sets quantization tables.

Public Properties

Name Description
Public Property ColorComponentCount Gets or sets the number of color components in the image to be compressed. This property is updated by calling the GetJpegCompression method. To set the JPEG Compression options, set this property and the other TwainJpegCompression properties and call the SetJpegCompression method.
Public Property ColorScheme Gets or sets color space values.
Public Property Empty Returns a TwainFileSystem structure with default values.
Public Property RestartFrequency Gets or sets the number of minimum data units between restart markers. The default value is 0, indicating that no restart markers are used. This property is updated by calling the GetJpegCompression method. To set the JPEG Compression options, set this property and the other TwainJpegCompression properties and call the SetJpegCompression method.
Public Property SubSampling Gets or sets a subsampling value. This property is updated by calling the GetJpegCompression method. To set the JPEG Compression options, set this property and the other TwainJpegCompression properties and call the SetJpegCompression method.

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