Visual FoxPro

Unzip an Email's Zip Attachments

Demonstrates the Chilkat Email.UnzipAttachments method, which unzips and replaces any Zip file attachments with their expanded contents. For example, if an email contains a single Zip holding three files, that Zip attachment is replaced by the three files as individual attachments. This example loads an email and expands its Zip attachments.

Background: Senders often bundle several files into one .zip to keep a message tidy or to compress large content. UnzipAttachments reverses that automatically, so downstream processing can work with the individual files directly rather than having to detect, extract, and re-inject archive contents. It is the inverse of ZipAttachments.

Chilkat Visual FoxPro Downloads

Download Chilkat for Visual FoxPro

Visual FoxPro

LOCAL lnSuccess
LOCAL loEmail

lnSuccess = 0

*  Demonstrates the UnzipAttachments method, which unzips and replaces any Zip file
*  attachments with their expanded contents.  For example, a single Zip containing 3 files
*  is replaced by those 3 files as individual attachments.

loEmail = CreateObject('Chilkat.Email')

lnSuccess = loEmail.LoadEml("qa_data/eml/with_zip_attachment.eml")
IF (lnSuccess = 0) THEN
    ? loEmail.LastErrorText
    RELEASE loEmail
    CANCEL
ENDIF

? "NumAttachments before = " + STR(loEmail.NumAttachments)

*  Expand any Zip attachments in place.
lnSuccess = loEmail.UnzipAttachments()
IF (lnSuccess = 0) THEN
    ? loEmail.LastErrorText
    RELEASE loEmail
    CANCEL
ENDIF

? "NumAttachments after = " + STR(loEmail.NumAttachments)

*  Note: The path "qa_data/..." is a relative local filesystem path,
*  relative to the current working directory of the running application.

RELEASE loEmail