(VB.NET UWP/WinRT) Get Contents of a T-Mobile Text Message (as Email)

How to get the contents of an email that originated as a T-Mobile SMS text.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

' First, for the purpose of understanding the structure of the MIME,
' let's load the MIME into a Chilkat MIME object and examine the MIME structure.
Dim mime As New Chilkat.Mime

Dim success As Boolean = mime.LoadMimeFile("qa_data/eml/TMobileTextMsg.eml")
' Show the MIME structure in text format (as opposed to XML format).
Debug.WriteLine(mime.GetStructure("text"))

' The MIME structure for our test email looks like this:
' multipart/related
'     text/html
'     text/plain
'     image/gif
'     image/gif
'     image/gif

' The HTML part is not considered a "related item" because the related items
' are defined as being related to the HTML part.  Therefore, we should always
' expect to find a text/html part under a multipart/related.  The HTML parts
' is simply the HTML body, and the other parts are the related items.
' If the text/plain part was to be considered as an alternative body,
' then a properly structured email would include a multipart/alternative structure.

Dim email As New Chilkat.Email

success = email.LoadEml("qa_data/eml/TMobileTextMsg.eml")

' We should see 4 related items.
Debug.WriteLine("Num Related Items = " & email.NumRelatedItems)
' There should be 0 attachments.  
Debug.WriteLine("Num Attachments = " & email.NumAttachments)

' Find the indices of the text/plain related part, and the text/html related part
Dim i As Integer = 0
Dim numRelatedItems As Integer = email.NumRelatedItems
Dim sbContentType As New Chilkat.StringBuilder
While i < numRelatedItems
    sbContentType.Append(email.GetRelatedContentType(i))
    Debug.WriteLine(i & ": " & sbContentType.GetAsString())
    If (sbContentType.ContentsEqual("text/plain",False)) Then
        Debug.WriteLine("---- text/plain part:")
        Debug.WriteLine(email.GetRelatedString(i,"utf-8"))
    End If


    sbContentType.Clear()
    i = i + 1
End While