Class CompressedStreamWriter

Represents the compressed stream writer

Inheritance
System.Object
CompressedStreamWriter
Namespace: Syncfusion.Compression
Assembly: Syncfusion.DocIO.UWP.dll
Syntax
public class CompressedStreamWriter : Object

Constructors

CompressedStreamWriter(Stream, CompressionLevel, Boolean)

Initializes compressor and writes ZLib header.

Declaration
public CompressedStreamWriter(Stream outputStream, CompressionLevel level, bool bCloseStream)
Parameters
Type Name Description
System.IO.Stream outputStream

Output stream.
CompressionLevel level

Compression level.
System.Boolean bCloseStream

If true, output stream will be closed after the last block has been written.

CompressedStreamWriter(Stream, Boolean)

Initializes compressor and writes ZLib header.

Declaration
public CompressedStreamWriter(Stream outputStream, bool bCloseStream)
Parameters
Type Name Description
System.IO.Stream outputStream

Output stream.
System.Boolean bCloseStream

If true, output stream will be closed after the last block has been written.

CompressedStreamWriter(Stream, Boolean, CompressionLevel, Boolean)

Initializes compressor and writes ZLib header if needed.

Declaration
public CompressedStreamWriter(Stream outputStream, bool bNoWrap, CompressionLevel level, bool bCloseStream)
Parameters
Type Name Description
System.IO.Stream outputStream

Output stream.
System.Boolean bNoWrap

If true, ZLib header and checksum will not be written.
CompressionLevel level

Compression level.
System.Boolean bCloseStream

If true, output stream will be closed after the last block has been written.

CompressedStreamWriter(Stream, Boolean, Boolean)

Initializes compressor and writes ZLib header if needed. Compression level is set to normal.

Declaration
public CompressedStreamWriter(Stream outputStream, bool bNoWrap, bool bCloseStream)
Parameters
Type Name Description
System.IO.Stream outputStream

Output stream.
System.Boolean bNoWrap

If true, ZLib header and checksum will not be written.
System.Boolean bCloseStream

If true, output stream will be closed after the last block has been written.

Fields

COMPR_FUNC

Internal compression engine constant

Declaration
public static int[] COMPR_FUNC
Field Value
Type
System.Int32[]

GOOD_LENGTH

Internal compression engine constant

Declaration
public static int[] GOOD_LENGTH
Field Value
Type
System.Int32[]

HASH_BITS

Internal compression engine constant

Declaration
public const int HASH_BITS = 15
Field Value
Type
System.Int32

HASH_MASK

Internal compression engine constant

Declaration
public const int HASH_MASK = 32767
Field Value
Type
System.Int32

HASH_SHIFT

Internal compression engine constant

Declaration
public const int HASH_SHIFT = 5
Field Value
Type
System.Int32

HASH_SIZE

Internal compression engine constant

Declaration
public const int HASH_SIZE = 32768
Field Value
Type
System.Int32

MAX_BLOCK_SIZE

Internal compression engine constant

Declaration
public static int MAX_BLOCK_SIZE
Field Value
Type
System.Int32

MAX_CHAIN

Internal compression engine constant

Declaration
public static int[] MAX_CHAIN
Field Value
Type
System.Int32[]

MAX_DIST

Internal compression engine constant

Declaration
public const int MAX_DIST = 32506
Field Value
Type
System.Int32

MAX_LAZY

Internal compression engine constant

Declaration
public static int[] MAX_LAZY
Field Value
Type
System.Int32[]

MAX_MATCH

Internal compression engine constant

Declaration
public const int MAX_MATCH = 258
Field Value
Type
System.Int32

MIN_LOOKAHEAD

Internal compression engine constant

Declaration
public const int MIN_LOOKAHEAD = 262
Field Value
Type
System.Int32

MIN_MATCH

Internal compression engine constant

Declaration
public const int MIN_MATCH = 3
Field Value
Type
System.Int32

NICE_LENGTH

Internal compression engine constant

Declaration
public static int[] NICE_LENGTH
Field Value
Type
System.Int32[]

WMASK

Internal compression engine constant

Declaration
public const int WMASK = 32767
Field Value
Type
System.Int32

Properties

TotalIn

Total data processed.

Declaration
public int TotalIn { get; }
Property Value
Type
System.Int32

Methods

Close()

Declaration
public void Close()

Write(Byte[], Int32, Int32, Boolean)

Compresses data and writes it to the stream.

Declaration
public void Write(byte[] data, int offset, int length, bool bCloseAfterWrite)
Parameters
Type Name Description
System.Byte[] data

Data to compress
System.Int32 offset

offset in data array
System.Int32 length

length of data to compress
System.Boolean bCloseAfterWrite

True - write last compress block in stream, otherwise False

Extension Methods