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Get an Alternative Body into a BinData

Demonstrates the Chilkat Email.GetAlternativeBodyBd method, which copies the contents of the Nth alternative body into a BinData object. The first alternative body is at index 0, and it should only be called when NumAlternatives is greater than 0. This example builds a message with plain-text and HTML alternatives and copies the first into a BinData.

Background: This is the binary counterpart to GetAlternativeBody (which returns text). Reading an alternative into a BinData preserves the exact bytes — important when a body part uses a binary or unusual transfer encoding, or when you intend to hash it or write it out verbatim rather than decode it to a string.

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llSuccess = .F.

//  Demonstrates the GetAlternativeBodyBd method, which copies the contents of the Nth
//  alternative body into a BinData object.  The first alternative body is at index 0; call
//  only when NumAlternatives is greater than 0.

loEmail = createobject("CkEmail")
loEmail.Subject = "GetAlternativeBodyBd example"

loEmail.SetTextBody("This is the plain-text alternative.","text/plain")
loEmail.AddHtmlAlternativeBody("<html><body>This is the HTML alternative.</body></html>")

//  Copy the first alternative body (index 0) into a BinData object.
loBd = createobject("CkBinData")

llSuccess = loEmail.GetAlternativeBodyBd(0,loBd)
if (llSuccess = .F.) then
    ? loEmail.LastErrorText
    release loEmail
    release loBd
    return
endif

? "Alternative 0 size (bytes) = " + str(loBd.NumBytes)


release loEmail
release loBd