Xbase++

Serialize MIME to BinData

Demonstrates the Chilkat Mime.GetMimeBd method, which serializes the complete MIME entity and appends its bytes to a BinData. The only argument is the BinData; existing bytes are preserved.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is the byte-exact serializer — the right choice when the MIME carries binary content such as an image or an 8-bit-encoded part, where routing the output through a text string could corrupt it. The result is a faithful byte stream you can write to a file, transmit, or hash. It pairs with LoadMimeBd for lossless round-tripping of binary MIME.

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LOCAL nSuccess
LOCAL oMime
LOCAL oBd

nSuccess := 0

//  Demonstrates the Mime.GetMimeBd method, which serializes the complete MIME entity and appends
//  its bytes to a BinData.  The only argument is the BinData.  Use this when arbitrary binary body
//  bytes must not pass through a text string.

oMime := CreateObject("Chilkat.Mime")

nSuccess := oMime:SetBodyFromFile("qa_data/photo.jpg")
IF (nSuccess == 0)
    ? oMime:LastErrorText
    oMime:destroy()
    RETURN
ENDIF

//  Append the serialized MIME bytes to a BinData.  Existing bytes are preserved.
oBd := CreateObject("Chilkat.BinData")
nSuccess := oMime:GetMimeBd(oBd)
IF (nSuccess == 0)
    ? oMime:LastErrorText
    oMime:destroy()
    oBd:destroy()
    RETURN
ENDIF

? "Serialized " + Str(oBd:NumBytes) + " bytes."

oMime:destroy()
oBd:destroy()