Compress Method, ZLib class

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

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

Easy to use, hi-performance ASP file upload component with progress bar indicator. Let's you upload multiple files with size up to 2GB to a disk or database along with another form fields. Works with large posts, any character set (including unicode utf-8). Contains one-click multiple files/folders download with on-the-fly compression (Using BinaryWrite/BinaryRead).

      Hi-performance text file logging for ASP/VBScript/VBA applications. Lets you create daily/weekly/monthly log files with variable number of logged values and extra timing and performance info.
       Lets you work with safearray binary data in VBS/JS. It also enables conversion between binary and String data using several code pages. ZLib compress and uncompress functions. Lets you transfer files using compressed stream from a client to server using IE.
      This library also enables calling of some Kernel and Advapi functions (performance, timing, sleep, configuration ...) and enables native work with INI files.

	Compress
	Method
	Member of ScriptUtils.ZLib