Class CompressedStreamWriter

Represents the compressed stream writer

Inheritance

System.Object

CompressedStreamWriter

Namespace: Syncfusion.Compression

Assembly: Syncfusion.Compression.Portable.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	Description
System.Int32[]

GOOD_LENGTH

Internal compression engine constant

Declaration

public static int[] GOOD_LENGTH

Field Value

Type	Description
System.Int32[]

HASH_BITS

Internal compression engine constant

Declaration

public const int HASH_BITS = 15

Field Value

Type	Description
System.Int32

HASH_MASK

Internal compression engine constant

Declaration

public const int HASH_MASK = 32767

Field Value

Type	Description
System.Int32

HASH_SHIFT

Internal compression engine constant

Declaration

public const int HASH_SHIFT = 5

Field Value

Type	Description
System.Int32

HASH_SIZE

Internal compression engine constant

Declaration

public const int HASH_SIZE = 32768

Field Value

Type	Description
System.Int32

MAX_BLOCK_SIZE

Internal compression engine constant

Declaration

public static int MAX_BLOCK_SIZE

Field Value

Type	Description
System.Int32

MAX_CHAIN

Internal compression engine constant

Declaration

public static int[] MAX_CHAIN

Field Value

Type	Description
System.Int32[]

MAX_DIST

Internal compression engine constant

Declaration

public const int MAX_DIST = 32506

Field Value

Type	Description
System.Int32

MAX_LAZY

Internal compression engine constant

Declaration

public static int[] MAX_LAZY

Field Value

Type	Description
System.Int32[]

MAX_MATCH

Internal compression engine constant

Declaration

public const int MAX_MATCH = 258

Field Value

Type	Description
System.Int32

MIN_LOOKAHEAD

Internal compression engine constant

Declaration

public const int MIN_LOOKAHEAD = 262

Field Value

Type	Description
System.Int32

MIN_MATCH

Internal compression engine constant

Declaration

public const int MIN_MATCH = 3

Field Value

Type	Description
System.Int32

NICE_LENGTH

Internal compression engine constant

Declaration

public static int[] NICE_LENGTH

Field Value

Type	Description
System.Int32[]

WMASK

Internal compression engine constant

Declaration

public const int WMASK = 32767

Field Value

Type	Description
System.Int32

Properties

TotalIn

Total data processed.

Declaration

public int TotalIn { get; }

Property Value

Type	Description
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