(Visual FoxPro) Replace/Update a FIle in a .zip

Demonstrates how to replace/update a file from a .zip. Note: This requires the entire .zip to be rewritten.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL loZip
LOCAL lnSuccess
LOCAL loEntry
LOCAL loZip2

* This requires the Chilkat Zip API to have been previously unlocked.
* See Unlock Chilkat Zip for sample code.

* First prepare a .zip and write it..
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Zip')
loZip = CreateObject('Chilkat.Zip')

loZip.NewZip("qa_output/abc.zip")

* Add some files..
loEntry = loZip.AppendString("a.txt","aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
RELEASE loEntry
loEntry = loZip.AppendString("b.txt","bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb")
RELEASE loEntry
loEntry = loZip.AppendString("c.txt","cccccccccccccccccccccccccccccccccccc")
RELEASE loEntry

* Write to qa_output/abc.zip
* This .zip contains three files: a.txt, b.txt, and c.txt
lnSuccess = loZip.WriteZipAndClose()

* -------------------------------------------------------------------
* Open abc.zip, replace the content of the "b.txt" entry with something else, and re-write.
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Zip')
loZip2 = CreateObject('Chilkat.Zip')
loZip2.OpenZip("qa_output/abc.zip")

loEntry = loZip2.GetEntryByName("b.txt")
loEntry.ReplaceString("This is the new content.  bbbbbbbbbbbbbbbbbbbbbb","utf-8")
RELEASE loEntry
* Write the modified .zip back to "abc.zip"
lnSuccess = loZip2.WriteZipAndClose()

? "success."

RELEASE loZip
RELEASE loZip2