Как получить RTF из Word без буффера обмена?

uses
  Word_TLB, ActiveX, ComObj;
 
function GetRTFFormat(DataObject: IDataObject; var RTFFormat: TFormatEtc): Boolean;
var
  Formats: IEnumFORMATETC;
  TempFormat: TFormatEtc;
  pFormatName: PChar;
  Found: Boolean;
begin
  try
    OleCheck(DataObject.EnumFormatEtc(DATADIR_GET, Formats));
    Found := False;
    while (not Found) and (Formats.Next(1, TempFormat, nil) = S_OK) do
    begin
      pFormatName := AllocMem(255);
      GetClipBoardFormatName(TempFormat.cfFormat, pFormatName, 254);
      if (string(pFormatName) = 'Rich Text Format') then
      begin
        RTFFormat := TempFormat;
        Found := True;
      end;
      FreeMem(pFormatName);
    end;
    Result := Found;
  except
    Result := False;
  end;
end;
 
function GetRTF: string;
var
  DataObject: IDataObject;
  RTFFormat: TFormatEtc;
  ReturnData: TStgMedium;
  Buffer: PChar;
  WordDoc: _Document;
  WordApp: _Application;
begin
  Result := '';
  try
    GetActiveOleObject('Word.Application').QueryInterface(_Application, WordApp);
  except
    ShowMessage('Error: MSWord is not running');
    Exit;
  end;
  if (WordApp <> nil) then
    try
      WordDoc := WordApp.ActiveDocument;
      WordDoc.QueryInterface(IDataObject, DataObject);
      if GetRTFFormat(DataObject, RTFFormat) then
      begin
        OleCheck(DataObject.GetData(RTFFormat, ReturnData));
        //RTF is passed through global memory
        Buffer := GlobalLock(ReturnData.hglobal);
        //Buffer is a pointer to the RTF text
        Result := StrPas(Buffer);
        GlobalUnlock(ReturnData.hglobal);
        ReleaseStgMedium(ReturnData);
      end;
    except
      // Error occured...
    end;
end;
 
procedure TForm1.Button1Click(Sender: TObject);
var
  ss: TStringstream;
  rtfText: string;
begin
  rtfText := GetRTF;
  ss := TStringStream.Create(rtfText);
  try
    ss.Position := 0;
    Memo1.Text := rtfText;
    RichEdit1.Lines.LoadFromStream(ss);
  finally
    ss.Free
  end;
end;

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