PowerBuilder

Get a Header Field of an Attachment

Demonstrates the Chilkat Email.GetAttachmentHeader method, which returns the value of a named header field of an attachment. The first argument is the zero-based attachment index and the second is the MIME header-field name. This example reads the Content-Disposition header of the first attachment.

Background: Each attachment is a MIME part with its own header block. Where GetAttachmentAttr extracts a single named parameter, GetAttachmentHeader returns the entire value of a header field — for example the full Content-Disposition: attachment; filename="notes.txt" line. That is useful for inspecting or debugging exactly how a part is described, including any custom X- headers a sender may have added.

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integer li_rc
oleobject loo_Email
string ls_Disp

//  Demonstrates the GetAttachmentHeader method, which returns the value of a header field
//  (by name) of an attachment.  The first argument is the zero-based attachment index and the second is the
//  MIME header-field name.

loo_Email = create oleobject
li_rc = loo_Email.ConnectToNewObject("Chilkat.Email")
if li_rc < 0 then
    destroy loo_Email
    MessageBox("Error","Connecting to COM object failed")
    return
end if
loo_Email.Subject = "Attachment header field"

loo_Email.AddStringAttachment("notes.txt","Some notes.")

//  Get the Content-Disposition header of the first attachment (index 0).
ls_Disp = loo_Email.GetAttachmentHeader(0,"Content-Disposition")
Write-Debug "Attachment 0 Content-Disposition: " + ls_Disp


destroy loo_Email