Controlling Paths of Files Added to Zip

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When appending files to a .zip, it can be difficult to get the paths exactly as you want them. This example describes a way that you can control the path information when adding a single file at a time to a .zip.

Dim zip As New ChilkatZip2

Dim success As Long

success = zip.UnlockComponent("anything for 30-day trial")
If (success <> 1) Then
    MsgBox "Failed to unlock zip component"
    Exit Sub
End If

'  Intialize the zip object by calling NewZip.
zip.NewZip "myZip.zip"

'  Add a reference to a file on disk to the zip object.
'  (When appending files to a zip, the files are not actually
'  read into memory.  References to the file(s) are added.
'  When WriteZip is called, the referenced files are streamed in
'  and compressed to the .zip.)
Dim saveExtraPath As Long
saveExtraPath = 0
success = zip.AppendOneFileOrDir("c:/temp/a/hamlet.xml",saveExtraPath)
'  For brevity, this example will not check the return status...

'  The saveExtraPath argument, if set, will cause the path information
'  passed in the 1st argument to be saved in the .zip.

'  To add "a/hamlet.xml", do this:
zip.AppendFromDir = "c:/temp"
saveExtraPath = 1
success = zip.AppendOneFileOrDir("a/hamlet.xml",saveExtraPath)

'  To add "temp/a/hamlet.xml", do this:
zip.AppendFromDir = "c:/"
saveExtraPath = 1
success = zip.AppendOneFileOrDir("temp/a/hamlet.xml",saveExtraPath)

'  The zip written here will contain hamlet.xml three times,
'  each with a different relative path.
success = zip.WriteZipAndClose()