Pascal (Lazarus/Delphi)

Get Each Alternative Body of an Email

Demonstrates the Chilkat Email.GetAlternativeBody method, which returns the Nth alternative body. The NumAlternatives property gives the number of alternatives, and indexes are zero-based. This example builds a message with plain-text and HTML alternatives and prints each one.

Background: A multipart/alternative email carries the same content in several forms — commonly plain text and HTML. Enumerating them by index lets you pull out exactly the representation you need: showing the HTML in a rich viewer, extracting the plain text for search or indexing, or comparing the two. Pair this with GetAlternativeContentType to learn what each indexed body actually is.

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Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Email;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  email: TEmail;
  n: Integer;
  i: Integer;

begin
  //  Demonstrates the GetAlternativeBody method, which returns the Nth alternative body.
  //  The NumAlternatives property gives the number of alternatives; indexes are zero-based.

  email := TEmail.Create;

  //  Create an email with plain-text and HTML alternatives.
  email.SetTextBody('This is the plain-text alternative.','text/plain');
  email.AddHtmlAlternativeBody('<html><body>This is the HTML alternative.</body></html>');

  n := email.NumAlternatives;

  for i := 0 to n - 1 do
    begin
      WriteLn('---- Alternative ' + i + ' ----');
      WriteLn(email.GetAlternativeBody(i));
    end;



  email.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.