PowerBuilder

Get the Nth Text Part of a Given Content-Type

Demonstrates the Chilkat Email.GetNthTextPartOfType method, which returns the text content of the Nth non-multipart MIME part matching a Content-Type pattern. The arguments are a zero-based index among the matching parts, the content-type pattern, an inlineOnly flag, and an excludeAttachments flag. This example retrieves the first text/html part.

Background: A MIME message is a tree of parts, and sometimes you want a specific one by its type rather than by walking alternatives or bodies. The content-type pattern can be exact (text/html) or a wildcard (text/*), and the two boolean flags narrow the search — inlineOnly restricts to inline (displayed) parts, and excludeAttachments skips parts marked as attachments — so you can target exactly the text you care about.

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integer li_rc
oleobject loo_Email
string ls_HtmlPart

//  Demonstrates the GetNthTextPartOfType method, which returns the text content of the Nth
//  non-multipart MIME part matching a Content-Type pattern.  The first argument is the zero-based
//  index among matching parts, the second is the Content-Type pattern, the third is inlineOnly, and the fourth is
//  excludeAttachments.

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 = "GetNthTextPartOfType example"

loo_Email.SetTextBody("This is the plain-text version.","text/plain")
loo_Email.AddHtmlAlternativeBody("<html><body>This is the HTML version.</body></html>")

//  Get the first (index 0) part whose content type matches text/html.
ls_HtmlPart = loo_Email.GetNthTextPartOfType(0,"text/html",0,0)
Write-Debug "First text/html part:"
Write-Debug ls_HtmlPart


destroy loo_Email