B4X

Create Zip in a BinData Object

See more Zip Examples

Recursively appends files in a directory tree and writes a zip archive into a Chilkat BinData object. B4X

Dim success As Boolean = False

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

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

'  Initialize the zip object.  Because we will never actually write a zip file to the filesystem,
'  the filepath passed to NewZip does not matter.
success = zip.NewZip("x.zip")
If success <> True Then
    Log(zip.LastErrorText)
    Return
End If


'  Append a directory tree.  The call to AppendFiles does
'  not read the file contents or append them to the zip
'  object in memory.  It simply appends references
'  to the files so that when WriteBd, WriteZip, or WriteZipAndClose 
'  is called, the referenced files are streamed and compressed
'  into the .zip output file (or BinData object).

Dim recurse As Boolean = True
success = zip.AppendFiles("c:/temp/a/*", recurse)
If success <> True Then
    Log(zip.LastErrorText)
    Return
End If


'  Write the zip archive into the bdZip object.
Dim bdZip As ChilkatBinData
bdZip.Initialize
success = zip.WriteBd(bdZip)
If success <> True Then
    Log(zip.LastErrorText)
    Return
End If


'  We could directly access the bytes of the zip archive, or perhaps
'  get the zip bytes in base64 format.
Dim zipAsBase64 As String = bdZip.GetEncoded("base64")
Log(zipAsBase64)

'  Or the zip can be used by some other Chilkat method call that accepts
'  a BinData object as an argument.