Utiliser les touches dans un TWebBrowser

unit Unit1;

interface

uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls, OleCtrls, SHDocVw, ActiveX;

type
TForm1 = class(TForm)
WebBrowser1: TWebBrowser;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
private
{ Déclarations privées }
FOleInPlaceActiveObject: IOleInPlaceActiveObject;
procedure MsgHandler( var Msg: TMsg; var Handled: Boolean);

public
{ Déclarations publiques }
end;

var
Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.FormCreate(Sender: TObject);
begin
Application.OnMessage := MsgHandler;
end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
FOleInPlaceActiveObject := nil;

end;

procedure TForm1.MsgHandler( var Msg: TMsg; var Handled: Boolean);
var
iOIPAO: IOleInPlaceActiveObject;
Dispatch: IDispatch;
begin
{ exit if we don't get back a webbrowser object }
if (WebBrowser1 = nil) then
begin
Handled := False;
Exit;
end;

Handled := (IsDialogMessage(WebBrowser1.Handle, Msg) = True);

if (Handled) and (not WebBrowser1.Busy) then
begin
if FOleInPlaceActiveObject = nil then
begin
Dispatch := WebBrowser1.Application;
if Dispatch <> nil then
begin
Dispatch.QueryInterface(IOleInPlaceActiveObject, iOIPAO);
if iOIPAO <> nil then
FOleInPlaceActiveObject := iOIPAO;
end;
end;

if FOleInPlaceActiveObject <> nil then
if ((Msg.message = WM_KEYDOWN) or (Msg.message = WM_KEYUP)) and
((Msg.wParam = VK_BACK) or (Msg.wParam = VK_LEFT) or (Msg.wParam = VK_RIGHT)) then
else
FOleInPlaceActiveObject.TranslateAccelerator(Msg);
end;
end;
end.