(Delphi ActiveX) Extract all HTML Objects from a Web Page

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

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
mht: TChilkatMht;
mhtDoc: WideString;
unpackDir: WideString;
htmlFilename: WideString;
partsSubdir: WideString;
success: Integer;

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

mht := TChilkatMht.Create(Self);

// 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 <> 1) then
  begin
    Memo1.Lines.Add(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 <> 1) then
  begin
    Memo1.Lines.Add(mht.LastErrorText);
  end
else
  begin
    Memo1.Lines.Add('Unpacked!');
  end;
end;