Pascal (Lazarus/Delphi)

Load an Email from MIME in a BinData

Demonstrates the Chilkat Email.SetFromMimeBd method, which loads an email from the MIME stored in a BinData object. On success, it replaces the entire current email. This example serializes one email into a BinData with GetMimeBd, then reconstructs it in a second object.

Background: This is the binary counterpart to SetFromMimeText and SetFromMimeSb. When a message's raw MIME arrives as bytes — read from a file, a socket, or a database blob into a BinData — loading it directly avoids any lossy or awkward byte-to-text conversion, which matters because MIME can carry binary transfer encodings.

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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,
  Chilkat.BinData;

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

procedure RunDemo;
var
  success: Boolean;
  source: TEmail;
  bdMime: TBinData;
  email: TEmail;

begin
  success := False;

  //  Demonstrates the SetFromMimeBd method, which loads an email from MIME stored in a BinData
  //  object.  On success, it replaces the entire current email.

  //  Build a source email and serialize its MIME into a BinData.
  source := TEmail.Create;
  source.Subject := 'Source message';
  source.From := 'alice@example.com';
  source.Body := 'Hello from a BinData.';
  bdMime := TBinData.Create;
  source.GetMimeBd(bdMime);

  //  Load a new email object from the BinData MIME.
  email := TEmail.Create;

  success := email.SetFromMimeBd(bdMime);
  if (success = False) then
    begin
      WriteLn(email.LastErrorText);
      Exit;
    end;

  WriteLn('Loaded subject: ' + email.Subject);


  source.Free;
  bdMime.Free;
  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.