DeflateStream Constructor (stream, mode)

DotNetZip

previous page next page

Ionic Zip Library v1.9.1.6 DeflateStream Constructor (stream, mode)

Create a DeflateStream using the specified CompressionMode.

Declaration Syntax

Visual Basic

Visual C++

public DeflateStream(
	Stream stream,
	CompressionMode mode
)

Public Sub New ( _
	stream As Stream, _
	mode As CompressionMode _
)

public:
DeflateStream(
	Stream^ stream, 
	CompressionMode mode
)

Parameters

stream (Stream): The stream which will be read or written.

mode (CompressionMode): Indicates whether the DeflateStream will compress or decompress.

Remarks

When mode is CompressionMode.Compress, the DeflateStream will use the default compression level. The "captive" stream will be closed when the DeflateStream is closed.

Examples

This example uses a DeflateStream to compress data from a file, and writes the compressed data to another file.

CopyC#

using (System.IO.Stream input = System.IO.File.OpenRead(fileToCompress))
{
    using (var raw = System.IO.File.Create(fileToCompress + ".deflated"))
    {
        using (Stream compressor = new DeflateStream(raw, CompressionMode.Compress))
        {
            byte[] buffer = new byte[WORKING_BUFFER_SIZE];
            int n;
            while ((n= input.Read(buffer, 0, buffer.Length)) != 0)
            {
                compressor.Write(buffer, 0, n);
            }
        }
    }
}

CopyVB.NET

Using input As Stream = File.OpenRead(fileToCompress)
    Using raw As FileStream = File.Create(fileToCompress & ".deflated")
        Using compressor As Stream = New DeflateStream(raw, CompressionMode.Compress)
            Dim buffer As Byte() = New Byte(4096) {}
            Dim n As Integer = -1
            Do While (n <> 0)
                If (n > 0) Then
                    compressor.Write(buffer, 0, n)
                End If
                n = input.Read(buffer, 0, buffer.Length)
            Loop
        End Using
    End Using
End Using

Assembly: Ionic.Zip (Module: Ionic.Zip) Version: 1.9.1.8 (1.9.1.8)

previous page start next page