Ruby

Set the Charset of an Attachment

Demonstrates the Chilkat Email.SetAttachmentCharset method, which sets the charset parameter of the Content-Type header field for the attachment at a given zero-based index. This example adds a text attachment and sets its charset to utf-8.

Background: For a text attachment, the charset parameter tells the receiving client which character encoding the bytes use, so accented or non-Latin text renders correctly. Setting it explicitly (typically utf-8) removes ambiguity when the attachment contains non-ASCII content — without it, a client may guess wrong and display garbled characters.

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Ruby

require 'chilkat'

success = false

#  Demonstrates the SetAttachmentCharset method, which sets the charset parameter of the
#  Content-Type header field for the attachment at the given zero-based index.

email = Chilkat::CkEmail.new()
email.put_Subject("Set attachment charset")

email.AddStringAttachment("notes.txt","Some notes.")

#  Set the charset of the first attachment (index 0) to utf-8.
success = email.SetAttachmentCharset(0,"utf-8")
if (success == false)
    print email.lastErrorText() + "\n";
    exit
end

#  The attachment's Content-Type now includes charset="utf-8".
print email.getMime() + "\n";