Ruby

Change the Filename of an Attachment

Demonstrates the Chilkat Email.SetAttachmentFilename method, which changes the filename of the attachment at a given zero-based index. This example adds an attachment and renames it, printing the filename before and after.

Background: The attachment filename is what a recipient sees and what most clients suggest when saving the file. Renaming it is handy when the original name is unclear, unsafe, or generic — for example giving a machine-generated tmp12345 a meaningful name like invoice.pdf before sending.

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Ruby

require 'chilkat'

success = false

#  Demonstrates the SetAttachmentFilename method, which changes the filename of the
#  attachment at the given zero-based index.

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

email.AddStringAttachment("oldname.txt","Some notes.")
print "Filename before: " + email.getAttachmentFilename(0) + "\n";

#  Change the filename of the first attachment (index 0).
success = email.SetAttachmentFilename(0,"newname.txt")
if (success == false)
    print email.lastErrorText() + "\n";
    exit
end

print "Filename after: " + email.getAttachmentFilename(0) + "\n";