TWebbrowser Çerçeve Kaynağını Kaydetme

TWebbrowser Çerçeve Kaynağını Kaydetme

// Uses'a ActiveX, MSHTML_TLB, ComCtrls, ComObj ekleyelim.

function GetBrowserForFrame(Doc: IHTMLDocument2; nFrame: Integer): IWebBrowser2;
  //Thanks to Rik Barker
  //returns an interface to the frame's browser
var
  pContainer: IOLEContainer;
  enumerator: ActiveX.IEnumUnknown;
  nFetched: PLongInt;
  unkFrame: IUnknown;
  hr: HRESULT;
begin
  Result := nil;
  nFetched := nil;
  // Cast the page as an OLE container
  pContainer := Doc as IOleContainer;
  // Get an enumerator for the frames on the page
  hr := pContainer.EnumObjects(OLECONTF_EMBEDDINGS or OLECONTF_OTHERS, enumerator);
  if hr <> S_OK then
  begin
    pContainer._Release;
    Exit;
  end;
  // Now skip to the frame we're interested in
  enumerator.Skip(nFrame);
  // and get the frame as IUnknown
  enumerator.Next(1,unkFrame, nFetched);
  // Now QI the frame for a WebBrowser Interface - I'm not  entirely
  // sure this is necessary, but COM never ceases to surprise me
  unkframe.QueryInterface(IID_IWebBrowser2, Result);
end;

function GetFrameSource(WebDoc: iHTMLDocument2): string;
  //returns frame HTML and scripts as a text string
var
  re: integer;
  HTMLel: iHTMLElement;
  HTMLcol: iHTMLElementCollection;
  HTMLlen: Integer;
  ScriptEL: IHTMLScriptElement;
begin
  Result := '';
  if Assigned(WebDoc) then
  begin
    HTMLcol := WebDoc.Get_all;
    HTMLlen := HTMLcol.Length;
    for re := 0 to HTMLlen - 1 do
    begin
      HTMLel := HTMLcol.Item(re, 0) as iHTMLElement;
      if HTMLEl.tagName = 'HTML' then
        Result := Result + HTMLEl.outerHTML;
    end;
  end;
end;
function WB_SaveFrameToFile(HTMLDocument: IHTMLDocument2;
  const FileName: TFileName): Boolean;
// Save IHTMLDocument2 to a file
var
  PersistFile: IPersistFile;
begin
  PersistFile := HTMLDocument as IPersistFile;
  PersistFile.Save(StringToOleStr(FileName), System.True);
end;
function SaveWBFrames(WebBrowser1: TWebBrowser): string;
// return the source for all frames in the browser
var
  Webdoc, HTMLDoc: ihtmldocument2;
  framesCol: iHTMLFramesCollection2;
  FramesLen: integer;
  pickFrame: olevariant;
  p: integer;
begin
  try
    WebDoc := WebBrowser1.Document as IHTMLDocument2;
    Result := GetFrameSource(WebDoc);

    // §§§ Hier kann Result in eine Datei gespeichert werden §§§§  oder  mit
    // WB_SaveFrameToFile(WebDoc,'c:\MainPage.html');

    //Handle multiple or single frames
    FramesCol := WebDoc.Get_frames;
    FramesLen := FramesCol.Get_length;
    if FramesLen > 0 then
      for p := 0 to FramesLen - 1 do
      begin
        pickframe := p;
        HTMLDoc   := WebBrowser1.Document as iHTMLDocument2;

        WebDoc := GetBrowserForFrame(HTMLDoc, pickframe).document as iHTMLDocument2;
        if WebDoc <> nil then
        begin
          Result := GetFrameSource(WebDoc);
          WB_SaveFrameToFile(WebDoc, 'c:\Frame' + IntToStr(p) + '.html');
          // ShowMessage(HTMLDoc.Get_parentWindow.Get_name);
          // ShowMessage(HTMLDoc.Get_parentWindow.Parent.Get_document.nameProp);

        end;
      end;
  except
    Result := 'No Source Available';
  end;
end;

Kullanımı: 

procedure TForm1.Button1Click(Sender: TObject);
begin
  SaveWBFrames(Webbrowser1);
end;

Alternatif Yöntem:

//Uses' a ActiveX; ekleyelim.

function TForm1.GetFrame(FrameNo: Integer): IWebbrowser2;
var
  OleContainer: IOleContainer;
  enum: IEnumUnknown;
  unk: IUnknown;
  Fetched: PLongint;
begin
  while Webbrowser1.ReadyState <> READYSTATE_COMPLETE do
    Application.ProcessMessages;
  if Assigned(Webbrowser1.document) then
  begin
    Fetched := nil;
    OleContainer := Webbrowser1.Document as IOleContainer;
    OleContainer.EnumObjects(OLECONTF_EMBEDDINGS, Enum);
    Enum.Skip(FrameNo);
    Enum.Next(1, Unk, Fetched);
    Result := Unk as IWebbrowser2;
  end
  else
    Result := nil;
end;

Örnek sayfayı yükleyelim.

procedure TForm1.Button1Click(Sender: TObject);
begin
  Webbrowser1.Navigate('http://www.warebizprogramming.com/tutorials/html/framesEx1.htm');
end;

// Tüm kareleri tek dosyaya kaydedelim.

procedure TForm1.Button2Click(Sender: TObject);
var
  IpStream: IPersistStreamInit;
  AStream: TMemoryStream;
  iw: IWebbrowser2;
  i: Integer;
  sl: TStringList;
begin
  for i := 0 to Webbrowser1.OleObject.Document.frames.Length - 1 do
  begin
    iw := GetFrame(i);
    AStream := TMemoryStream.Create;
    try
      IpStream := iw.document as IPersistStreamInit;
      if Succeeded(IpStream.save(TStreamadapter.Create(AStream), True)) then
      begin
        AStream.Seek(0, 0);
        sl := TStringList.Create;
        sl.LoadFromStream(AStream);
        sl.SaveToFile('c:\frame' + IntToStr(i) + '.txt');
        //  memo1.Lines.LoadFromStream(AStream);
        sl.Free;
      end;
    except
    end;
    AStream.Free;
  end;
end;

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