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Create a multipart/alternative MIME Entity

Demonstrates the Chilkat Mime.NewMultipartAlternative method, which initializes the object as an empty multipart/alternative entity. It takes no arguments; the alternative representations are then appended.

Background: multipart/alternative holds several renderings of the same content and lets the client pick the best one it can display — the standard way to send an email as both plain text and HTML. Order matters: parts go from least to most preferred, so the plain-text version comes first and the HTML last, and a client shows the last one it understands.

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Local $bSuccess = False

;  Demonstrates the Mime.NewMultipartAlternative method, which initializes the object as an empty
;  multipart/alternative entity, clearing any existing content.  It takes no arguments.

$oMime = ObjCreate("Chilkat.Mime")

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

;  multipart/alternative holds two representations of the SAME content; the client displays the
;  last one it can render.  Add a plain-text part, then an HTML part.
$oTextPart = ObjCreate("Chilkat.Mime")
$bSuccess = $oTextPart.SetBodyFromPlainText("Hello (plain text version).")
If ($bSuccess = False) Then
    ConsoleWrite($oTextPart.LastErrorText & @CRLF)
    Exit
EndIf

$bSuccess = $oMime.AppendPart($oTextPart)
If ($bSuccess = False) Then
    ConsoleWrite($oMime.LastErrorText & @CRLF)
    Exit
EndIf

$oHtmlPart = ObjCreate("Chilkat.Mime")
$bSuccess = $oHtmlPart.SetBodyFromHtml("<html><body><b>Hello</b> (HTML version).</body></html>")
If ($bSuccess = False) Then
    ConsoleWrite($oHtmlPart.LastErrorText & @CRLF)
    Exit
EndIf

$bSuccess = $oMime.AppendPart($oHtmlPart)
If ($bSuccess = False) Then
    ConsoleWrite($oMime.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Number of alternatives: " & $oMime.NumParts & @CRLF)