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VBScript

Get an Attachment's Bytes into a BinData

See more Email Object Examples

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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VBScript
Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

success = 0

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

set email = CreateObject("Chilkat.Email")
email.Subject = "GetAttachmentBd example"

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

'  Copy the first attachment's binary data into a BinData object.
set bd = CreateObject("Chilkat.BinData")
success = email.GetAttachmentBd(0,bd)
If (success = 0) Then
    outFile.WriteLine(email.LastErrorText)
    WScript.Quit
End If

outFile.WriteLine("Attachment size (bytes) = " & bd.NumBytes)

outFile.Close