PowerBuilder

Check if a MIME Entity is Multipart

Demonstrates the Chilkat Mime.IsMultipart method, which returns whether the Content-Type begins with multipart/. It takes no arguments.

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own file.

Background: The first question when processing a message is usually whether it is a single part or a container of parts, because that decides whether you read the body directly or iterate children. IsMultipart answers it for any of the multipart subtypes at once; use the more specific predicates when the exact subtype matters.

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integer li_rc
integer li_Success
oleobject loo_Mime

li_Success = 0

//  Demonstrates the Mime.IsMultipart method, which returns whether the Content-Type begins with multipart/.  It takes no arguments.

loo_Mime = create oleobject
li_rc = loo_Mime.ConnectToNewObject("Chilkat.Mime")
if li_rc < 0 then
    destroy loo_Mime
    MessageBox("Error","Connecting to COM object failed")
    return
end if
li_Success = loo_Mime.LoadMimeFile("qa_data/multipart_message.eml")
if li_Success = 0 then
    Write-Debug loo_Mime.LastErrorText
    destroy loo_Mime
    return
end if

if loo_Mime.IsMultipart() then
    Write-Debug "This is a multipart entity."
else
    Write-Debug "This is not a multipart entity."
end if



destroy loo_Mime