PowerBuilder

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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integer li_rc
integer li_Success
oleobject loo_Mime
oleobject loo_Bd

li_Success = 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.

loo_Mime = create oleobject
li_rc = loo_Mime.ConnectToNewObject("Chilkat.Mime")
if li_rc < 0 then
    destroy loo_Mime
    MessageBox("Error","Connecting to COM object failed")
    return
end if

li_Success = loo_Mime.SetBodyFromFile("qa_data/photo.jpg")
if li_Success = 0 then
    Write-Debug loo_Mime.LastErrorText
    destroy loo_Mime
    return
end if

//  Append the serialized MIME bytes to a BinData.  Existing bytes are preserved.
loo_Bd = create oleobject
li_rc = loo_Bd.ConnectToNewObject("Chilkat.BinData")

li_Success = loo_Mime.GetMimeBd(loo_Bd)
if li_Success = 0 then
    Write-Debug loo_Mime.LastErrorText
    destroy loo_Mime
    destroy loo_Bd
    return
end if

Write-Debug "Serialized " + string(loo_Bd.NumBytes) + " bytes."


destroy loo_Mime
destroy loo_Bd