WebBrowser1.GoHome; //到瀏覽器默認(rèn)主頁
WebBrowser1.Refresh; //刷新
WebBrowser1.GoBack; //后退
WebBrowser1.GoForward; //前進(jìn)
WebBrowser1.Navigate(''...''); //打開指定頁面
WebBrowser1.Navigate(''about:blank''); //打開空頁面
//打開空頁面, 并寫入...
WebBrowser1.Navigate(''about:<head><title>標(biāo)題></title><body>頁面內(nèi)容
</body>'');
//讀取網(wǎng)頁腳本中的變量:
procedure TForm1.Button1Click(Sender: TObject);
var
s: string;
i: Integer;
begin
s := WebBrowser1.OleObject.document.Script.str;
i := WebBrowser1.OleObject.document.Script.num;
ShowMessage(s); //Hello
ShowMessage(IntToStr(i)); //99
//也可以這樣讀:
s := WebBrowser1.OleObject.document.parentWindow.str;
i := WebBrowser1.OleObject.document.parentWindow.num;
ShowMessage(s); //Hello
ShowMessage(IntToStr(i)); //99
end;
假如網(wǎng)頁中有這樣的語句:<br> <script><br> var<br> str =
"Hello";<br> i = 99;<br> </script>
//調(diào)用網(wǎng)頁腳本中的函數(shù):
procedure TForm1.Button1Click(Sender: TObject);
begin
WebBrowser1.OleObject.document.parentWindow.MB(); //HTML-Js
//如需指定腳本語言, 需要:
WebBrowser1.OleObject.document.parentWindow.execScript(''MB
()'',''JavaScript''); //HTML-Js
end;
假如有這樣的腳本:<br> <script><br> function MB(){ <br> alert
(''HTML-Js'');<br> }<br> </script>
//判斷網(wǎng)頁及內(nèi)部框架網(wǎng)頁是否全部下載完畢
procedure TForm1.WebBrowser1DocumentComplete(ASender: TObject;
const pDisp: IDispatch; var URL: OleVariant);
begin
if WebBrowser1.Application = pDisp then
begin
Text := ''網(wǎng)頁下載完畢！'';
end;
end;
//改變背景色或背景圖片:
WebBrowser1.OleObject.document.body.bgcolor := ''#FF0000'';
WebBrowser1.OleObject.document.body.background := ''...圖片地址'';
//操作有 ID 標(biāo)簽的對(duì)象:
var
s: string;
begin
s := WebBrowser1.OleObject.document.getElementByID
(''span1'').innerText;
ShowMessage(s); //這是 span1 標(biāo)簽中的內(nèi)容
//或者:
s := WebBrowser1.OleObject.document.parentWindow.span1.innerText;
ShowMessage(s); //這是 span1 標(biāo)簽中的內(nèi)容
//隱藏它:
WebBrowser1.OleObject.document.parentWindow.span1.style.display :=
''none'';
end;
假如網(wǎng)頁中有這樣的內(nèi)容:<br> <span id=span1>這是 span1 標(biāo)簽中的內(nèi)
容</span><br>
//獲取網(wǎng)頁源代碼
var
s: string;
begin
s := WebBrowser1.OleObject.document.body.innerHTML; //body內(nèi)的所有代
碼
s := WebBrowser1.OleObject.document.body.outerHTML; //body內(nèi)的所有代
碼, 包含body標(biāo)簽
s := WebBrowser1.OleObject.document.documentElement.innerHTML; //html
內(nèi)的所有代碼
end;
//獲取網(wǎng)頁全部源代碼
uses ActiveX;
var
ms: TMemoryStream;
begin
if not Assigned(WebBrowser1.Document) then Exit;
ms := TMemoryStream.Create;
(WebBrowser1.Document as IPersistStreamInit).Save
(TStreamAdapter.Create(ms), True);
ms.Position := 0;
Memo1.Lines.LoadFromStream(ms, TEncoding.UTF8);
// Memo1.Lines.LoadFromStream(ms, TEncoding.Default); {GB2312 等雙字節(jié)
}
ms.Free;
end;
//WebBrowser 中的右鍵菜單
//先要添加ApplicationEvents1,指定其Message事件
//屏蔽右鍵菜單
procedure TForm1.ApplicationEvents1Message(var Msg: tagMSG; var
Handled: Boolean);
begin
with Msg do
begin
if not IsChild(WebBrowser1.Handle, hWnd) then Exit;
Handled := (message = WM_RBUTTONDOWN) or (message = WM_RBUTTONUP)
or (message = WM_CONTEXTMENU);
end;
end;
//替換右鍵菜單
procedure TForm1.ApplicationEvents1Message(var Msg: tagMSG; var
Handled: Boolean);
var mPoint: TPoint;
begin
if IsChild(WebBrowser1.Handle, Msg.Hwnd) and
((Msg.Message = WM_RBUTTONDOWN) or (Msg.Message = WM_RBUTTONUP))
then
begin
GetCursorPos(mPoint); //得到光標(biāo)位置
PopupMenu1.Popup(mPoint.X, mPoint.Y); //彈出popupmenu1的菜單
Handled:=True;
end;
end;
//新頁面寫入
begin
WebBrowser1.Navigate(''about:blank'');
WebBrowser1.OleObject.Document.Writeln(''ok'');
end;
//從流中寫入:
var
ms: TMemoryStream;
begin
ms := TMemoryStream.Create;
Memo1.Lines.SaveToStream(ms);
ms.Position := 0;
(WebBrowser1.Document as IPersistStreamInit).Load
(TStreamAdapter.Create(ms));
ms.Free;
end;
//禁止提示腳步錯(cuò)誤
procedure TForm1.WebBrowser1NavigateComplete2(ASender: TObject;
const pDisp: IDispatch; var URL: OleVariant);
begin
WebBrowser1.Silent := True;
end;
//禁止彈出窗口
procedure TForm1.WebBrowser1NewWindow2(ASender: TObject; var ppDisp:
IDispatch;
var Cancel: WordBool);
begin
Cancel := True;
end;
模擬點(diǎn)擊網(wǎng)頁中的按鈕
操作鏈接
