B4X Requires Chilkat v11.0.0+

Find a ZIP Entry by Exact Path Using EntryOf

See more Zip Examples

This example demonstrates how to use the EntryOf method to find a ZIP entry whose stored path exactly matches a specified path.

Unlike EntryMatching, which performs wildcard matching, EntryOf performs an exact path lookup.

This method is useful when:

• The exact ZIP path is already known
• Retrieving a specific file or directory entry
• Verifying whether a particular entry exists in the ZIP archive

Suppose the ZIP archive contains:

docs/
docs/readme.txt
docs/manual.pdf
images/logo.png
data/config/settings.json

ZIP archives may optionally contain explicit directory entries such as docs/. These directory entries can also be retrieved using EntryOf.

The example:

• Finds an exact file entry
• Finds an exact directory entry
• Demonstrates the difference between file and directory entries

B4X

Dim success As Boolean = False

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

success = False

'  Open an existing ZIP archive.
Dim zip As ChilkatZip
zip.Initialize("zip")

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


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

'  ------------------------------------------------------------
'  Find a specific file entry by its exact ZIP path.

success = zip.EntryOf("docs/readme.txt", entry)

If success = True Then
    Log("Found file entry:")
    Log("  FileName = " & entry.FileName)
    Log("  IsDirectory = " & entry.IsDirectory)
    Log("")
End If


'  ------------------------------------------------------------
'  Find a directory entry.
'  
'  ZIP archives may optionally contain explicit directory entries.
'  In this example, "docs/" is a separate directory entry.

success = zip.EntryOf("docs/", entry)

If success = True Then
    Log("Found directory entry:")
    Log("  FileName = " & entry.FileName)
    Log("  IsDirectory = " & entry.IsDirectory)
    Log("")
End If


'  ------------------------------------------------------------
'  Attempt to find a non-existent entry.

success = zip.EntryOf("images/missing.png", entry)

If success = False Then
    Log("The entry images/missing.png was not found.")
End If


zip.CloseZip

Log("Done.")