Chilkat Examples

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Visual Basic 6.0 Examples

ASN.1
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
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Async
Azure Cloud Storage
Azure Service Bus
Base64
Bounced Email
Box
CSR
CSV
Certificates
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Digital Signatures
Dropbox
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FTP
Facebook
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Gzip
HTML-to-XML/Text
HTTP
HTTP Misc
IMAP
JSON
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JSON Web Signatures (JWS)
JSON Web Token (JWT)

Java KeyStore (JKS)
Jira
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MIME
Microsoft Graph
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POP3
PRNG
PayPal
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REST
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SCP
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SharePoint
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Spider
Stream
Stripe
SugarCRM
Tar Archive
Twitter
Upload
VoiceBase
Walmart
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Xero
Zip
curl
eBay

 

 

 

(Visual Basic 6.0) Encrypt Already Existing Zip

To encrypt an already existing non-encrypted .zip, the application must open the .zip, set the encryption related properties, and then re-write.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

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

Dim zip As New ChilkatZip

'  Open an unencrypted .zip
Dim success As Long
success = zip.OpenZip("qa_data/zips/test.zip")
If (success <> 1) Then
    Debug.Print zip.LastErrorText
    Exit Sub
End If

'  Unzip to a temp directory.
Dim numFilesUnzipped As Long
numFilesUnzipped = zip.Unzip("qa_output/tmp")
If (numFilesUnzipped < 0) Then
    Debug.Print zip.LastErrorText
    Exit Sub
End If

'  Clear the zip object.
success = zip.NewZip("qa_output/aesTest.zip")

'  Indicate that 128-bit AES encryption is to be used when writing the .zip
zip.Encryption = 4
zip.EncryptKeyLength = 128

'  Set the password.
zip.EncryptPassword = "secret"

'  Append the files.
zip.AppendFromDir = "qa_output/tmp"
success = zip.AppendFiles("*.*",1)
If (success <> 1) Then
    Debug.Print zip.LastErrorText
    Exit Sub
End If

'  Write the .zip and close it.
success = zip.WriteZipAndClose()
If (success <> 1) Then
    Debug.Print zip.LastErrorText
    Exit Sub
End If

Debug.Print "Success."

 

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