Tcl

Check if a MIME Entity is multipart/related

Demonstrates the Chilkat Mime.IsMultipartRelated method, which returns whether the Content-Type is exactly multipart/related. 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: multipart/related signals that the parts belong together — typically an HTML body plus the inline images it references by Content-ID. Detecting it tells your code the non-primary parts are embedded resources, not standalone attachments to list.

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Tcl


load ./chilkat.dll

set success 0

#  Demonstrates the Mime.IsMultipartRelated method, which returns whether the Content-Type is multipart/related.  It takes no arguments.

set mime [new_CkMime]

set success [CkMime_LoadMimeFile $mime "qa_data/multipart_message.eml"]
if {$success == 0} then {
    puts [CkMime_lastErrorText $mime]
    delete_CkMime $mime
    exit
}

if {CkMime_IsMultipartRelated $mime} then {
    puts "This is a multipart/related entity."
} else {
    puts "This is not multipart/related."
}


delete_CkMime $mime