ByteArray Class, Binary manipulation, hex and base64 conversion, string codepage (charset) conversions., Member of ScriptUtils

Member of  ScriptUtils Use ByteArray object | Changes | Purchase | Download

Description

Works with safearray binary data - save/restore binary data from/to a disk, convert to a string/hexstring, codepage/charset conversions, Base64 conversion, etc.

Links

ScriptUtilities and Huge ASP file upload home page
Sample multiple file/folder download with zip/arj compression

Features of the ByteArray class

Other features

Methods

Find Returns a Long specifying the position of the first occurrence of the data binary array.
FindRev Returns a Long specifying the position of the first occurrence of the data in binary array from the end of data.
CharSetConvert Converts bytearray (as CharSet/CodePage code page) to another charset/code page.
Left Returns Length bytes from the left of array
Mid Returns data from middle of the array.
ReadFrom Reads data from file.
Right Returns Length bytes from the right of array
SaveAs Saves the ByteArray data as a file.
SetSize Sets a new size of binary data. If old size is greter than new size, data is truncated to the new size.

Properties

Base64Converts data between ByteArray (safearray of bytes) and Base64. Works as a Base64 encoder and decoder from binary (bytearray) or from Unicode String.
Variant, RW
ByteArrayContens of ByteArray object as byte safearray or one byte from array.
Variant, RW
CodePageCode page for converting between binary and String data.
ConvertCodePages, RW
HexStringReturns contents of the ByteArray as hexadecimal string (base16 string)
String, RW
CharSetString representation of a CodePage. This value specifies the code page of a source binary data for binary to unicode String conversion.
String, RW
LengthLength of the data.
Long, RW
PunycodeReturns unicode String as punycode encoded string. You can directly convert data from/to any charset to punycode using this property.
String, RW
StringReturns (or sets) the data as a string. The binary data are converted to/from a unicode string using CodePage.
String, RW

Examples

Simple download

<Script RunAt=Server Language=VBScript>
  WriteFileToClient "c:\images\adv88.gif"

  Sub WriteFileToClient(File)
    Dim ByteArray
    Set ByteArray = CreateObject("ScriptUtils.ByteArray")'Creates the ByteArray object
    ByteArray.ReadFrom(File)
    Response.AddHeader "Content-Length", ByteArray.Length
    Response.ContentType = "image/GIF"
    Response.BinaryWrite ByteArray.ByteArray'Returns byte safearray (VT_UI1)
    ByteArray = Empty
  End Sub 
</Script>

ByteArray - Punycode - unicode conversions

Convert files from one code page / character set to another (ANSI to utf-8)

ByteArray - encode a file to a base64 string (Base64 file)

ByteArray - Convert iso-2022-jp binary data to shift-jis codepage binary data

Upload - large files to MS SQL Server using a HexString property and UPDATETEXT SQL statement

Multiple files download with on-the-fly compression zip/arj

Download help from www.motobit.com

Used in

ByteArray.Left, ByteArray.Right, ByteArray.Mid, ByteArray.CharSetConvert

Other links for ByteArray class

ASP file upload and ScriptUtilities classes

Kernel, ByteArray, Process, Thread, Advapi, INIFile, ZLib, LogFile, ASPForm, FormFields, FormField, FormParser, ProgressInfo

ASP file upload and ScriptUtilities enums

ProcessCreationFlags, ThreadPriorities, PriorityClasses, LogonTypes, ConvertCodePages, OutputTypes, ZLibCompressLevels, ConvertTypes, LogLineEncodes, LogLineBeginTypes, FormStates, eFormType

ScriptUtils

Huge ASP upload is easy to use, hi-performance ASP file upload component with progress bar indicator. This component lets you upload multiple files with size up to 4GB to a disk or a database along with another form fields. Huge ASP file upload is a most featured upload component on a market with competitive price and a great performance . The software has also a free version of asp upload with progress, called Pure asp upload , written in plain VBS, without components (so you do not need to install anything on server). 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.

Additional notes

     ByteArray is a COM class specially designed to work with Microsoft Windows Scripting engines - VB Script and JScript in Active Server Pages or WSH and in CHM or HTA applications. It also works with VB Net, Visual basic (VBA - VB 5, VB 6, Word, Excel, Access, ), C#, J#, C++, ASP, ASP.Net, Delphi and with T-SQL OLE functions - see Use ByteArray object article. You can also use the object in other programming environments with COM support, such is PowerBuilder.
     Source code for ByteArray is available within distribution license, please see License page for ASP file upload and ScriptUtilities.

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