Delphi DLL

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. Delphi DLL

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
mht: HCkMht;
mhtDoc: PWideChar;
unpackDir: PWideChar;
htmlFilename: PWideChar;
partsSubdir: PWideChar;

begin
success := False;

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

mht := CkMht_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 := CkMht__getMHT(mht,'https://www.tetonlodge.com/');
if (CkMht_getLastMethodSuccess(mht) <> True) then
  begin
    Memo1.Lines.Add(CkMht__lastErrorText(mht));
    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 := CkMht_UnpackMHTString(mht,mhtDoc,unpackDir,htmlFilename,partsSubdir);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkMht__lastErrorText(mht));
  end
else
  begin
    Memo1.Lines.Add('Unpacked!');
  end;

CkMht_Dispose(mht);

end;