PowerBuilder

Get the Size of an Attachment

Demonstrates the Chilkat Email.GetAttachmentSize method, which returns the size in bytes of the attachment at a given zero-based index, or -1 if the index does not identify an existing attachment. This example adds an attachment and prints its size.

Background: The size reported is that of the attachment's actual (decoded) data, not its larger Base64-encoded form on the wire. Knowing per-attachment sizes is handy for enforcing limits, showing a size next to each attachment in a UI, or deciding whether to save or skip a large part. The -1 sentinel is how the method signals an out-of-range index rather than a zero-length attachment.

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integer li_rc
oleobject loo_Email
integer li_Sz

//  Demonstrates the GetAttachmentSize method, which returns the size in bytes of the
//  attachment at the given zero-based index.  It returns -1 if the index does not identify
//  an existing attachment.

loo_Email = create oleobject
li_rc = loo_Email.ConnectToNewObject("Chilkat.Email")
if li_rc < 0 then
    destroy loo_Email
    MessageBox("Error","Connecting to COM object failed")
    return
end if
loo_Email.Subject = "Attachment size"

loo_Email.AddStringAttachment("notes.txt","Some notes for the attachment.")

//  Get the size in bytes of the first attachment (index 0).
li_Sz = loo_Email.GetAttachmentSize(0)
Write-Debug "Attachment 0 size (bytes) = " + string(li_Sz)


destroy loo_Email