Delphi ActiveX

Create a multipart/mixed MIME Entity

Demonstrates the Chilkat Mime.NewMultipartMixed method, which initializes the object as an empty multipart/mixed entity, clearing any existing content. It takes no arguments; child parts are then appended.

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: multipart/mixed is the container for independent parts shown one after another — the classic "message body plus attachments" layout. Each child is its own distinct content, unlike multipart/alternative (competing renderings of the same thing) or multipart/related (a part and its embedded resources). Start here, then AppendPart a body and AppendPartFromFile the attachments.

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var
success: Integer;
mime: TChilkatMime;
bodyPart: TChilkatMime;

begin
success := 0;

//  Demonstrates the Mime.NewMultipartMixed method, which initializes the object as an empty
//  multipart/mixed entity, clearing any existing headers, body, and child parts.  It takes no
//  arguments.

mime := TChilkatMime.Create(Self);

success := mime.NewMultipartMixed();
if (success = 0) then
  begin
    Memo1.Lines.Add(mime.LastErrorText);
    Exit;
  end;

//  Append child parts.  multipart/mixed is the container for a message body plus attachments.
bodyPart := TChilkatMime.Create(Self);
success := bodyPart.SetBodyFromPlainText('See the attached report.');
if (success = 0) then
  begin
    Memo1.Lines.Add(bodyPart.LastErrorText);
    Exit;
  end;
success := mime.AppendPart(bodyPart.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(mime.LastErrorText);
    Exit;
  end;

success := mime.AppendPartFromFile('qa_data/report.pdf');
if (success = 0) then
  begin
    Memo1.Lines.Add(mime.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add('Number of parts: ' + IntToStr(mime.NumParts));