(Visual FoxPro) Add Header Field to MIME Sub-Header in Email

Demonstrates how to add a header field to one of the attachment sub-headers in an email.

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

LOCAL loEmail
LOCAL lnSuccess

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

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Email')
loEmail = CreateObject('Chilkat.Email')

loEmail.Subject = "test"
loEmail.AddTo("Chilkat","support@chilkatsoft.com")
loEmail.From = "Matt <matt@example.com>"
loEmail.Body = "This is a simple plain-text body."

lnSuccess = loEmail.AddFileAttachment2("qa_data/1.HPM","application/x-hprimnet")
IF (lnSuccess <> 1) THEN
    ? loEmail.LastErrorText
    RELEASE loEmail
    CANCEL
ENDIF

* Add a "ContentDescription: HPM/3.0" in the attachment's sub-header.
* The 1st attachment is at index 0.
loEmail.AddAttachmentHeader(0,"Content-Description","HPM/3.0")

* Show the email MIME:
? loEmail.GetMime()

* This is the output:
* (Note: When Chilkat sends email, all CKX-* headers are removed prior to sending.)

* MIME-Version: 1.0
* Date: Wed, 16 Jan 2019 10:05:18 -0600
* Message-ID: <93B88835586270B7BE5202F84E171F29C10BA935@CHILKATSLICE>
* Content-Type: multipart/mixed; boundary="------------000502000000020502010608"
* X-Priority: 3 (Normal)
* Subject: test
* To: Chilkat <support@chilkatsoft.com>
* From: Matt <matt@example.com>
* CKX-Bounce-Address: matt@example.com
* 
* --------------000502000000020502010608
* Content-Type: text/plain; charset=us-ascii; format=flowed
* Content-Transfer-Encoding: 7bit
* 
* This is a simple plain-text body.
* --------------000502000000020502010608
* Content-Type: application/x-hprimnet; name="1.HPM"
* Content-Transfer-Encoding: base64
* Content-Disposition: attachment; filename="1.HPM"
* Content-Description: HPM/3.0
* 
* FILE_DATA_IS_HERE...
* 
* --------------000502000000020502010608--

RELEASE loEmail