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Set a MIME Body, Preserving Content Headers

Demonstrates the Chilkat Mime.SetBody method, which sets the current part's body while preserving the existing content headers (Content-Type, charset, Content-Transfer-Encoding). The only argument is the body text; it is a void method.

Background: Unlike the SetBodyFrom... methods, which set both the content and the headers that describe it, SetBody replaces only the body text and leaves the existing Content-Type and encoding in place. That is what you want when the media type is already correct and you simply need to swap in new content — updating a templated part, for instance — without re-declaring its type.

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Local $bSuccess = False

;  Demonstrates the Mime.SetBody method, which sets the current part's body while preserving the
;  existing content headers (Content-Type, charset, Content-Transfer-Encoding).  The only argument
;  is the body text.  It is a void method.

$oMime = ObjCreate("Chilkat.Mime")

;  Establish the content headers first.
$bSuccess = $oMime.SetBodyFromPlainText("initial")
If ($bSuccess = False) Then
    ConsoleWrite($oMime.LastErrorText & @CRLF)
    Exit
EndIf

;  Replace just the body text, keeping the existing Content-Type and encoding.
$oMime.SetBody "This is the replacement body text."

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

ConsoleWrite($sMimeText & @CRLF)