PowerShell

Set the Content-Disposition of an Attachment

Demonstrates the Chilkat Email.SetAttachmentDisposition method, which sets the Content-Disposition value for the attachment at a given zero-based index. The default disposition is attachment. This example changes an attachment's disposition to inline.

Background: The Content-Disposition header hints how a client should present a part: attachment means "offer it as a download," while inline means "display it within the message" (as an email client does with an embedded image). Setting it lets you control that behavior — though clients ultimately decide how to honor the hint.

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Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

#  Demonstrates the SetAttachmentDisposition method, which sets the Content-Disposition
#  value for the attachment at the given zero-based index.  The default disposition is
#  "attachment".

$email = New-Object Chilkat.Email
$email.Subject = "Set attachment disposition"

$email.AddStringAttachment("image.txt","(pretend inline content)")

#  Set the disposition of the first attachment (index 0) to "inline".
$success = $email.SetAttachmentDisposition(0,"inline")
if ($success -eq $false) {
    $($email.LastErrorText)
    exit
}

#  The attachment's Content-Disposition is now "inline".
$($email.GetMime())