(Lianja) Create Zip in a BinData Object

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

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

loZip = createobject("CkZip")

// Initialize the zip object.  Because we will never actually write a zip file to the filesystem,
// the filepath passed to NewZip does not matter.
llSuccess = loZip.NewZip("x.zip")
if (llSuccess <> .T.) then
    ? loZip.LastErrorText
    release loZip
    return
endif

// 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).

llRecurse = .T.
llSuccess = loZip.AppendFiles("c:/temp/a/*",llRecurse)
if (llSuccess <> .T.) then
    ? loZip.LastErrorText
    release loZip
    return
endif

// Write the zip archive into the bdZip object.
loBdZip = createobject("CkBinData")
llSuccess = loZip.WriteBd(loBdZip)
if (llSuccess <> .T.) then
    ? loZip.LastErrorText
    release loZip
    release loBdZip
    return
endif

// We could directly access the bytes of the zip archive, or perhaps
// get the zip bytes in base64 format.
lcZipAsBase64 = loBdZip.GetEncoded("base64")
? lcZipAsBase64

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


release loZip
release loBdZip