Xbase++

Set a MIME Body from Binary Bytes (BinData)

Demonstrates the Chilkat Mime.SetBodyBd method, which sets the decoded body bytes from a BinData, changes the transfer encoding to base64, and preserves the bytes exactly. The only argument is the BinData.

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 direct way to put arbitrary binary content into a part from memory — a generated image, a decrypted blob — without a temporary file. Chilkat base64-encodes it so the bytes survive text-based transports unchanged. Note it does not set a Content-Type or disposition, so assign those yourself to describe what the bytes are.

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LOCAL nSuccess
LOCAL oBd
LOCAL oMime

nSuccess := 0

//  Demonstrates the Mime.SetBodyBd method, which sets the decoded body bytes from a BinData,
//  changes the transfer encoding to base64, and preserves the bytes exactly.  The only argument is
//  the BinData.

//  Put the binary body bytes into a BinData.
oBd := CreateObject("Chilkat.BinData")
nSuccess := oBd:LoadFile("qa_data/photo.jpg")
IF (nSuccess == 0)
    ? oBd:LastErrorText
    oBd:destroy()
    RETURN
ENDIF

oMime := CreateObject("Chilkat.Mime")

//  Set a Content-Type for the binary content (SetBodyBd does not set one itself).
oMime:ContentType := "image/jpeg"

nSuccess := oMime:SetBodyBd(oBd)
IF (nSuccess == 0)
    ? oMime:LastErrorText
    oBd:destroy()
    oMime:destroy()
    RETURN
ENDIF

? "Body set from " + Str(oBd:NumBytes) + " bytes."

oBd:destroy()
oMime:destroy()