Pascal (Lazarus/Delphi)

Extract all HTML Objects from a Web Page

See more MHT / HTML Email Examples

Demonstrates how to download a Web page (at a URL) and extract all HTML objects. Eg. images, links, CSS files, JavaScript files, etc. 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.Mht;

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

procedure RunDemo;
var
  success: Boolean;
  mht: TMht;
  mhtDoc: string;
  unpackDir: string;
  htmlFilename: string;
  partsSubdir: string;

begin
  success := False;

  //  This example assumes the Chilkat API to have been previously unlocked.
  //  See Global Unlock Sample for sample code.

  mht := TMht.Create;

  //  Download a URL into an in-memory MHT web archive contained
  //  in a string variable.
  //  The following URL is randomly picked and was valid at the time of writing this example:
  mhtDoc := mht.GetMHT('https://www.tetonlodge.com/');
  if (mht.LastMethodSuccess <> True) then
    begin
      WriteLn(mht.LastErrorText);
      Exit;
    end;

  //  Extract the HTML and embedded objects:
  unpackDir := 'C:/AAWorkarea/mhtTesting/';
  htmlFilename := 'lodge.html';
  partsSubdir := 'objects';

  //  Extract to C:/AAWorkarea/mhtTesting/lodge.html.
  //  images and other embedded objects are placed in
  //  C:/AAWorkarea/mhtTesting/objects.  Directories are automatically
  //  created if they don't already exist.
  success := mht.UnpackMHTString(mhtDoc,unpackDir,htmlFilename,partsSubdir);
  if (success <> True) then
    begin
      WriteLn(mht.LastErrorText);
    end
  else
    begin
      WriteLn('Unpacked!');
    end;


  mht.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.