<zipArchive variable>.DeleteFileList (Function)

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Use conditions
Error codes
Index of files in the archive
Stored path

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<zipArchive variable>.DeleteFileList (Function)

In french: <Variable zipArchive>.SupprimeListeFichier

Deletes a list of files from an archive. This function is faster than <zipArchive variable>.DeleteFile run for each file.

New in version 28

The zipArchive type is now available for UWP applications.

Example

MyArchive is zipArchive
// Create the archive
ResOpen = MyArchive.Open("C:\Temp\Archive.zip")

IF ResOpen = 0 THEN
...
// Delete "File.doc" and "MyDoc.pdf"
ResDelete = MyArchive.DeleteFileList("File.doc" + CR + "MyDoc.PDF")
...
END

Syntax

<Result> = <Archive>.DeleteFileList(<Path of the files to delete> [, <Progress bar management>])

<Result>: Integer

0 if the files have been deleted,
An error code (value greater than 0) otherwise. The message corresponding to the error code is returned by zipMsgError.

<Archive>: zipArchive variable

Name of a variable of type zipArchive corresponding to the archive to use.

<Path of the files to delete>: Character string

Stored path of the file that must be deleted from the archive. The paths are separated by CR characters (Carriage Return).

<Progress bar management>: Optional character string

Progress bar management mode. This parameter can correspond to:
the name of a Progress Bar control found in a window. The progress bar will display the progress of file deletion.
the name of a WLanguage procedure. This procedure has the following format:
<Procedure name> (<Current file>, <Progress percentage>)

where:
<Current file> corresponds to the name of the file currently processed.
<Progress percentage> corresponds to the progress percentage of the file list being deleted from the archive.
If you are using an archive in TAR or TGZ (TAR.GZ) format, the progress bar is updated at the end of file addition only.
The procedure must be a server procedure.

Remarks

Use conditions

The files can be deleted from an archive if:

The archive exists (archives are created using <zipArchive variable>.Create).
The archive is accessible in read/write.
The archive is a single-part archive.

Caution:

Archives in RAR format: This function is not available.
Archives in CAB format: This function is not available.
Archives in TAR and TGZ (TAR.GZ) format: This function is not available.
Archives in 7z format: The archive is entirely compressed whenever <zipArchive variable>.DeleteFileList is called.

Only ZIP archives are available.

Error codes

The following error codes are returned:

2: Access denied: the user has no sufficient rights.
3: The archive is corrupted.
4: The path does not exist in the archive.
5: Unable to write into the archive.

Index of files in the archive

Once the files have been deleted, the indices of the remaining files are modified. The indices of the files after the deleted file are automatically decremented by 1.

Stored path

The table below presents the paths stored in the archive according to:

the access path to the file,
the path section to store.

The current directory is: "C:\Temp".


zipAddFile	File location	zipNone	zipDirectory	zipDrive
zipAddFile("Archi", "File.txt")	C:\Temp\File.txt	File.txt	File.txt	File.txt
zipAddFile("Archi", "Data\File.txt")	C:\Temp\Data\File.txt	File.txt	Data\File.txt	Data\File.txt
zipAddFile("Archi", "D:\Data\File.txt")	D:\Data\File.txt	File.txt	Data\File.txt	D:\Data\File.txt

Remark: If the zipDrive constant is used, the WDZ format stores the full path of the file (including the drive letter) while the ZIP format does not store the drive letter.

The zipDrive constant is equivalent to the zipDirectory constant.

The directory and the disk are not stored in the archive path. Only the file name and extension are stored.

Component: wd280zip.dll