PowerShell

Get an Attachment's Bytes into a BinData

Demonstrates the Chilkat Email.GetAttachmentBd method, which copies an attachment's binary data into a BinData object. The first attachment is at index 0. This example adds an attachment and copies its bytes into a BinData, printing the byte count.

Background: This is the safe, binary way to extract an attachment — the counterpart to the text-oriented GetAttachmentString. Because attachments are often binary (PDFs, images, archives), copying the raw bytes into a BinData preserves them exactly, ready to write to a file, hash, or pass to another API without any charset conversion that could corrupt the data.

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

$success = $false

#  Demonstrates the GetAttachmentBd method, which copies an attachment's binary data into a
#  BinData object.  The first attachment is at index 0.

$email = New-Object Chilkat.Email
$email.Subject = "GetAttachmentBd example"

$email.AddStringAttachment("notes.txt","Some notes stored in the attachment.")

#  Copy the first attachment's binary data into a BinData object.
$bd = New-Object Chilkat.BinData
$success = $email.GetAttachmentBd(0,$bd)
if ($success -eq $false) {
    $($email.LastErrorText)
    exit
}

$("Attachment size (bytes) = " + $bd.NumBytes)