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Add a MIME Header Field

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Demonstrates the Chilkat Mime.AddHeaderField method, which appends a new header field. The first argument is the field name and the second is the value. Existing fields with the same case-insensitive name are preserved, so this can create duplicates.

Background: MIME headers are ordered name/value lines, and some — Received, for instance — legitimately appear more than once. AddHeaderField is the tool for that: it always appends, never replacing an existing field of the same name. When you instead want exactly one field with a given name, use SetHeaderField, which replaces rather than accumulates.

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Local $bSuccess = False

;  Demonstrates the Mime.AddHeaderField method, which appends a new header field.  The 1st argument
;  is the field name and the 2nd is the value.  Existing fields with the same (case-insensitive)
;  name are preserved, so this can create duplicate fields.

$oMime = ObjCreate("Chilkat.Mime")

$bSuccess = $oMime.SetBodyFromPlainText("Hello.")
If ($bSuccess = False) Then
    ConsoleWrite($oMime.LastErrorText & @CRLF)
    Exit
EndIf

;  Append header fields.  AddHeaderField does not replace existing fields of the same name.
$bSuccess = $oMime.AddHeaderField("X-Custom-Header","value1")
If ($bSuccess = False) Then
    ConsoleWrite($oMime.LastErrorText & @CRLF)
    Exit
EndIf

$bSuccess = $oMime.AddHeaderField("X-Priority","3")
If ($bSuccess = False) Then
    ConsoleWrite($oMime.LastErrorText & @CRLF)
    Exit
EndIf

Local $sHeaders = $oMime.GetEntireHead()
If ($oMime.LastMethodSuccess = False) Then
    ConsoleWrite($oMime.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite($sHeaders & @CRLF)