Classic ASP

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.

Chilkat Classic ASP Downloads

Download Chilkat for Classic ASP

Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
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 = Server.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 = Server.CreateObject("Chilkat.BinData")
success = email.GetAttachmentBd(0,bd)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( email.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Attachment size (bytes) = " & bd.NumBytes) & "</pre>"

%>
</body>
</html>