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  • Special case of the .GZ extension
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Stored procedures
Opens an existing archive.
For the archives in "CAB" or "RAR" format, the archive is created if it does not exist.
The archive can be:
  • in WinZip or PKZip format (.ZIP extension).
  • in WINDEV format (.WDZ extension).
  • in Cabinet file format (.CAB extension).
  • in RAR format (.RAR extension).
  • in 7z format (.7z extension).
  • in TAR format (.TAR extension).
  • in TGZ format (.TGZ extension).
  • in TAR.GZ format (.TAR.GZ extension).
  • an executable (.EXE) corresponding to a .WDZ file changed into a self-extracting archive.
Reports and Queries
MyArchive is zipArchive
// Open an archive
ResOpenArchive = zipOpen(MyArchive, "C:\MyArchives\Archive.zip")
 
// Display an error message if the archive was not opened
IF ResOpenArchive <> 0 THEN
Error(zipMsgError(ResOpenArchive))
END
Syntax
<Result> = zipOpen(<Archive> , <Archive path> [, <Opening mode>])
<Result>: Integer
  • 0 if the archive was opened,
  • An error code (value greater than 0) otherwise. For more details on these error codes, see the Remarks.
<Archive>: Character string or zipArchive variable
Name of the archive to be used.
This name can correspond to:
The archive is created if it does not exist (except for the "CAB" or "RAR" formats).
<Archive path>: Character string
Path and name of archive (up to 260 characters). The archive extension can be specified. If the archive extension is not specified, the default extension is .WDZ.
<Opening mode>: Optional constant (or combination of constants)
Archive opening mode:
zipCreateIfNotFoundCreates the archive if it does not exist
(not available for .CAB and .RAR files)
zipHeader64Allows you to create an archive larger than 4 GB on which zipChangePath can be used.
Archive in TAR or TGZ (TAR.GZ) format: This constant is not available.
zipReadOpening in read-only
zipWriteOpening in read/write
(not available for .CAB and .RAR files)

The default opening mode is: zipCreateIfNotFound + zipWrite.
Remarks

Error codes

The following error codes are returned:
  • 1: The path passed as parameter does not exist.
  • 2: Access denied: the user has no sufficient rights.
  • 3: The archive is corrupted.
  • 6: The files of the sub-archives are not arranged in order (when opening a multi-part archive).
The message corresponding to the error code is returned by zipMsgError. Reminder:

    Special case of the .GZ extension

    '.tar.gz' files generated by GitHub should not be confused with compressed '.gz' files.
    Content compressed in gzip format can be decompressed with Uncompress.
    Business / UI classification: Business Logic
    Component: wd270zip.dll
    Minimum version required
    • Version 9
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