Pascal (Lazarus/Delphi)

Save a Related Item to Disk

Demonstrates the Chilkat Email.SaveRelatedItem method, which saves the related item at a given zero-based index to a directory. If the directory or any of its components do not exist, Chilkat creates them. This example adds a related style sheet and saves it.

Background: Related items are the inline resources (images, style sheets) an HTML email carries in its multipart/related enclosure. SaveRelatedItem writes one of them out as a file — a building block for tasks like extracting a specific embedded image, or manually unpacking a message when you want finer control than the all-in-one UnpackHtml / AspUnpack methods provide.

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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
  success: Boolean;
  email: TEmail;

begin
  success := False;

  //  Demonstrates the SaveRelatedItem method, which saves the related item at a given
  //  zero-based index to a directory.  If the directory (or any of its components) does not
  //  exist, Chilkat creates it.

  email := TEmail.Create;
  email.Subject := 'Save a related item';

  //  Set an HTML body that references a related style sheet by name.
  email.SetHtmlBody('<html><head><link rel="stylesheet" href="styles.css"/></head><body>Styled.</body></html>');
  email.AddRelatedString2('styles.css','body { color: navy; }','utf-8');

  //  Save the related item at index 0 into the specified directory.
  success := email.SaveRelatedItem(0,'qa_output/related');
  if (success = False) then
    begin
      WriteLn(email.LastErrorText);
      Exit;
    end;

  WriteLn('Saved related item 0.');

  //  Note: The path "qa_output/..." is a relative local filesystem path,
  //  relative to the current working directory of the running application.


  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.