Visual Basic 6.0

Check if a MIME Part is Plain Text

Demonstrates the Chilkat Mime.IsPlainText method, which returns whether the Content-Type is exactly text/plain. It takes no arguments and applies to the current part.

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: Inside a multipart/alternative, this is how you pick out the plain-text rendering — the fallback to show when HTML cannot be displayed, or the version to index for search. It is the specific counterpart to IsHtml.

Chilkat Visual Basic 6.0 Downloads

Download Chilkat for Visual Basic 6.0

Visual Basic 6.0

Dim success As Long
success = 0

'  Demonstrates the Mime.IsPlainText method, which returns whether the Content-Type is text/plain.  It takes no arguments and applies to the current
'  part.  This example iterates the parts of a multipart message and reports which ones match.

Dim mime As New ChilkatMime
success = mime.LoadMimeFile("qa_data/multipart_message.eml")
If (success = 0) Then
    Debug.Print mime.LastErrorText
    Exit Sub
End If

Dim n As Long
n = mime.NumParts
Dim part As New ChilkatMime
Dim i As Long
For i = 0 To n - 1
    success = mime.PartAt(i,part)
    If (success = 0) Then
        Debug.Print mime.LastErrorText
        Exit Sub
    End If

    If (part.IsPlainText()) Then
        Debug.Print "Part " & i & " (" & part.ContentType & ") is plain text."
    End If

Next