Pascal (Lazarus/Delphi)

Get an Alternative Body by Content-Type

Demonstrates the Chilkat Email.GetAlternativeBodyByContentType method, which returns an alternative body selected by its Content-Type — such as text/plain, text/html, or text/xml — instead of by numeric index. This example retrieves both the plain-text and HTML alternatives by content type.

Background: Selecting by Content-Type is often more convenient than by index, because you usually know which representation you want (the HTML, say) but not its position in the alternative list. This mirrors how a mail client works — it looks up the best matching type to display — and avoids assumptions about ordering, which can vary between messages.

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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;
  plain: string;
  htmlBody: string;

begin
  //  Demonstrates the GetAlternativeBodyByContentType method, which returns an alternative
  //  body selected by its Content-Type (such as text/plain, text/html, or text/xml) rather
  //  than by index.

  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>');

  //  Get the plain-text alternative by its content type.
  plain := email.GetAlternativeBodyByContentType('text/plain');
  WriteLn('text/plain body: ' + plain);

  //  Get the HTML alternative by its content type.
  htmlBody := email.GetAlternativeBodyByContentType('text/html');
  WriteLn('text/html body: ' + htmlBody);


  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.