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GoFiler Legato Script Reference
Legato v 1.4j Application v 5.22b
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Chapter Six — File Functions (continued)
ZipGetEntryCompressionType Function
Overview
The ZipGetEntryCompressionType function returns the compression mode used to create an entry within a Zip Object.
Syntax/Parameters
Syntax
int = ZipGetEntryCompressionType ( handle hZip, int index | string name );
Parameters
hZip
A handle for a Zip Object created with the ZipOpen function.
index
An int specifying the zero-based entry within the Zip Object. Or,
name
A string specifying an entry name. The direction of the slashes is not important.
Return Value
Returns an int as a compression mode code or a formatted error code on failure.
Remarks
The modes are as follows (courtesy PK Zip AppNote 632):
0 - The file is stored (no compression)
1 - The file is Shrunk†
2 - The file is Reduced with compression factor 1†
3 - The file is Reduced with compression factor 2†
4 - The file is Reduced with compression factor 3†
5 - The file is Reduced with compression factor 4†
6 - The file is Imploded†
7 - Reserved for Tokenizing compression algorithm†
8 - The file is Deflated
9 - Enhanced Deflating using Deflate64(tm)†
10 - PKWARE Data Compression Library Imploding (old IBM TERSE)†
11 - Reserved by PKWARE†
12 - File is compressed using BZIP2 algorithm†
13 - Reserved by PKWARE†
14 - LZMA (EFS)†
15 - Reserved by PKWARE†
16 - Reserved by PKWARE†
17 - Reserved by PKWARE†
18 - File is compressed using IBM TERSE (new)†
19 - IBM LZ77 z Architecture (PFS)†
97 - WavPack compressed data 98 - PPMd version I, Rev 1†
† Not supported by Legato.
Related Functions
Platform Support
Go13, Go16, GoFiler Complete, GoFiler Corporate, GoFiler, GoFiler Lite, GoXBRL
Legato IDE, Legato Basic
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