Compress

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          Method 
          Member of  ScriptUtils.ZLib 

Description

Returns compressed source as ByteArray or string.

Syntax

vCompress = ZLib.Compress (Source as Variant, [CompressType as ZLibCompressLevels = ctDefaultCompression], [OutputType as OutputTypes = otByteArray])
 
Where Type Optional Default Description
 Source  Variant     Source data to compress. ByteArray or String 
 CompressType  ZLibCompressLevels  yes  ctDefaultCompression  Compression level. Range from 1 to 9, or special values. 
 OutputType  OutputTypes  yes  otByteArray  Type for the return value. One of ByteArray, Variant ByteArray, String or MultiByte String 

Returns

Variant

Returns

This function returns variant containing ByteArray, variant ByteArray, String or MultiByte string.

Examples

 ZLib - Compress file  
Sub CompressFile(SourceFile, DestFile)
  Dim ByteArray, ZLib
  Set ByteArray = CreateObject("ScriptUtils.ByteArray")
  Set ZLib = CreateObject("ScriptUtils.ZLib")
  
  'Read the dsource file
  ByteArray.ReadFrom SourceFile

  'Compress source data
  Set ByteArray = ZLib.Compress(ByteArray.ByteArray)

  'Save data to the destination file
  ByteArray.SaveAs DestFile
End Sub

See also

ZLib.UnCompress
  Other links for Compress

Methods of ZLib class

Compress, UnCompress

ScriptUtils.ZLib

Implements zlib Compress and Uncompress functions. Lets you compress/uncompress files, or send compressed data over http/https connections.

ScriptUtils

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     This installation package contains also ScriptUtilities library. Script Utilities lets you create hi-performance log files, works with binary data, you can download multiple files with zip/arj compression, work with INI files and much more with the ASP utility.

© 1996 – 2008 Antonin Foller, Motobit Software, help{at}pstruh.cz, help v. 2.20.24