(Visual Basic 6.0) Extract a Single ZIP Entry While Preserving Its Stored Path

See more Zip Examples

This example demonstrates how to use the ZipEntry.Extract method to extract a single entry from a ZIP archive.

The example first creates a ZIP archive containing a text file. It then re-opens the ZIP, finds the entry, and extracts it to a base directory.

The Extract method uses the relative path stored within the ZIP entry. Any required subdirectories are created automatically beneath the specified base directory.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim success As Long
success = 0

' ------------------------------------------------------------
' First create a sample ZIP archive containing a small text file.

Dim zip As New ChilkatZip

success = zip.NewZip("c:/temp/sampleText.zip")
If (success = 0) Then
    Debug.Print zip.LastErrorText
    Exit Sub
End If

' Add a small text file from memory.
success = zip.AddString("myApp/docs/hello.txt","Hello from a ZIP entry!","utf-8")
If (success = 0) Then
    Debug.Print zip.LastErrorText
    Exit Sub
End If

' Write the ZIP archive to disk and close it.
success = zip.WriteZipAndClose()
If (success = 0) Then
    Debug.Print zip.LastErrorText
    Exit Sub
End If

' ------------------------------------------------------------
' Now open the ZIP archive we just created.

Dim zip2 As New ChilkatZip

success = zip2.OpenZip("c:/temp/sampleText.zip")
If (success = 0) Then
    Debug.Print zip2.LastErrorText
    Exit Sub
End If

' Find the entry by its stored ZIP path.
Dim entry As New ChilkatZipEntry

success = zip2.EntryOf("myApp/docs/hello.txt",entry)

If (success = 0) Then
    Debug.Print "Entry not found."
    Exit Sub
End If

' Extract this single entry to the base directory:
' 
'     c:/temp/extracted
' 
' Because the entry's stored path is:
' 
'     myApp/docs/hello.txt
' 
' the file will be extracted to:
' 
'     qa_output/extracted/myApp/docs/hello.txt
' 
' The required subdirectories are created automatically.
success = entry.Extract("c:/temp/extracted")
If (success = 0) Then
    Debug.Print entry.LastErrorText
    Exit Sub
End If

zip2.CloseZip 

Debug.Print "Entry extracted successfully."