AutoIt

Find a ZIP Entry by EntryID Using EntryById

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This example demonstrates how to use the EntryById method to retrieve a ZIP entry using its unique EntryID.

Each ZipEntry object has an EntryID property that uniquely identifies the entry within the currently open ZIP object.

This is useful when:

• An application stores EntryID values for later use
• ZIP entries need to be retrieved without searching by filename
• Multiple entries may have similar names or paths

The example:

• Opens a ZIP archive
• Retrieves an entry using EntryAt
• Saves the entry's EntryID
• Uses EntryById to retrieve the same entry later

AutoIt

Local $bSuccess = False

$bSuccess = False

; Open an existing ZIP archive.
$oZip = ObjCreate("Chilkat.Zip")

$bSuccess = $oZip.OpenZip("example.zip")
If ($bSuccess = False) Then
    ConsoleWrite($oZip.LastErrorText & @CRLF)
    Exit
EndIf

; Retrieve the first entry in the ZIP archive.
$oEntry = ObjCreate("Chilkat.ZipEntry")

$bSuccess = $oZip.EntryAt(0,$oEntry)
If ($bSuccess = False) Then
    ConsoleWrite($oZip.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Original entry:" & @CRLF)
ConsoleWrite("  FileName: " & $oEntry.FileName & @CRLF)
ConsoleWrite("  EntryID: " & $oEntry.EntryID & @CRLF)
ConsoleWrite("" & @CRLF)

; Save the EntryID for later use.
Local $iEntryId = $oEntry.EntryID

; Create another ZipEntry object.
$oEntry2 = ObjCreate("Chilkat.ZipEntry")

; Retrieve the same entry using EntryById.
$bSuccess = $oZip.EntryById($iEntryId,$oEntry2)
If ($bSuccess = False) Then
    ConsoleWrite($oZip.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Entry retrieved by EntryID:" & @CRLF)
ConsoleWrite("  FileName: " & $oEntry2.FileName & @CRLF)
ConsoleWrite("  EntryID: " & $oEntry2.EntryID & @CRLF)
ConsoleWrite("" & @CRLF)

; The filenames and EntryID values should match.
$oZip.CloseZip 

ConsoleWrite("Done." & @CRLF)