C# GZipStream Read
Description
GZipStream Read Reads a number of decompressed bytes
into the specified byte array.
Syntax
GZipStream.Read has the following syntax.
public override int Read(
byte[] array,/* w w w . ja v a 2s. com*/
int offset,
int count
)
Parameters
GZipStream.Read has the following parameters.
array- The array used to store decompressed bytes.offset- The byte offset in array at which the read bytes will be placed.count- The maximum number of decompressed bytes to read.
Returns
GZipStream.Read method returns The number of bytes that were decompressed into the byte array. If the end
of the stream has been reached, zero or the number of bytes read is returned.
Example
The following example shows how to compress and decompress bytes by using the Read and Write methods.
/*from w ww . j a va2s.c om*/
using System;
using System.Text;
using System.IO;
using System.IO.Compression;
class Program
{
static void Main(string[] args)
{
UnicodeEncoding uniEncode = new UnicodeEncoding();
byte[] bytesToCompress = uniEncode.GetBytes("example text to compress and decompress");
Console.WriteLine("starting with: " + uniEncode.GetString(bytesToCompress));
using (FileStream fileToCompress = File.Create("examplefile.gz"))
{
using (GZipStream compressionStream = new GZipStream(fileToCompress, CompressionMode.Compress))
{
compressionStream.Write(bytesToCompress, 0, bytesToCompress.Length);
}
}
byte[] decompressedBytes = new byte[bytesToCompress.Length];
using (FileStream fileToDecompress = File.Open("examplefile.gz", FileMode.Open))
{
using (GZipStream decompressionStream = new GZipStream(fileToDecompress, CompressionMode.Decompress))
{
decompressionStream.Read(decompressedBytes, 0, bytesToCompress.Length);
}
}
Console.WriteLine("ending with: " + uniEncode.GetString(decompressedBytes));
}
}
The code above generates the following result.
