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B4X Requires Chilkat v11.0.0+

Change a Filename before Unzipping

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How to open a zip and modify the filename of one or more files within the zip before unzipping.

Chilkat B4X Downloads

B4X
Dim success As Boolean = False

'  This example requires the Chilkat API to have been previously unlocked.
'  See Global Unlock Sample for sample code.

Dim zip As ChilkatZip
zip.Initialize("zip")

success = zip.OpenZip("test.zip")
If success = False Then
    Log(zip.LastErrorText)
    Return
End If


Dim entry As ChilkatZipEntry
entry.Initialize("entry")

success = zip.EntryOf("hamlet.xml", entry)
If success = False Then
    Log(zip.LastErrorText)
    Return
End If

entry.FileName = "hamlet2.xml"

success = zip.EntryOf("helloWorld.pl", entry)
If success = False Then
    Log(zip.LastErrorText)
    Return
End If

entry.FileName = "hw.pl"

'  Now unzip to the "test" subdirectory, under our current
'  working directory:
Dim numFilesUnzipped As Int = zip.Unzip("test")
If numFilesUnzipped < 0 Then
    Log(zip.LastErrorText)
    Return
End If


'  The filenames within the .zip are unchanged, but it unzipped
'  test/hw.pl and test/hamlet2.xml