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所属分类:编程茶楼
- var Form : IHTMLFormElement ;
- D:IHTMLDocument2 ;
- begin
- with WebBrowser1 do begin
- D := Document as IHTMLDocument2;
- Form := D.Forms.item( 'form1 ',0) as IHTMLFormElement; //form1为表单名
- //title为表单中的文本框
- (form.item( 'title ',0) as IHTMLElement).setAttribute( 'value ',s_title,0);
- (form.item( 'content ',0) as IHTMLElement).setAttribute( 'value ',edit1.text,0);
- (form.item( 'add ',0) as IHTMLElement).click;//add为按钮名称
- end;
在delphi的WebBrowser中获取和设置Input表单值
- var
- i:Integer;
- myole:oleVariant;
- begin
- myole := wb1.Document;
- for i := 0 to myole.all.length - 1 do
- begin
- if myole.all.item(i).tagName = 'INPUT' then
- begin
- mmo1.Lines.Add(myole.all.item(i).name);
- mmo1.Lines.Add(myole.all.item(i).value);
- end;
- end;
- end;
- WebBrowser1.GoHome; //到浏览器默认主页
- WebBrowser1.Refresh; //刷新
- WebBrowser1.GoBack; //后退
- WebBrowser1.GoForward; //前进
- WebBrowser1.Navigate('...'); //打开指定页面
- WebBrowser1.Navigate('about:blank'); //打开空页面
- --------------------------------------------------------------------------------
- //打开空页面, 并写入...
- WebBrowser1.Navigate('about:<head><title>标题></title><body>页面内容</body>');
- --------------------------------------------------------------------------------
- //读取网页脚本中的变量:
- 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
- //也可以这样读:
- s := WebBrowser1.OleObject.document.parentWindow.str;
- i := WebBrowser1.OleObject.document.parentWindow.num;
- ShowMessage(s); //Hello
- ShowMessage(IntToStr(i)); //99
- end;
- 假如网页中有这样的语句:
- <script>
- var
- str = "Hello";
- i = 99;
- </script>
- --------------------------------------------------------------------------------
- //调用网页脚本中的函数:
- procedure TForm1.Button1Click(Sender: TObject);
- begin
- WebBrowser1.OleObject.document.parentWindow.MB(); //HTML-Js
- //如需指定脚本语言, 需要:
- WebBrowser1.OleObject.document.parentWindow.execScript('MB()','JavaScript'); //HTML-Js
- end;
- 假如有这样的脚本:
- <script>
- function MB(){
- alert('HTML-Js');
- }
- </script>
- --------------------------------------------------------------------------------
- //判断网页及内部框架网页是否全部下载完毕
- procedure TForm1.WebBrowser1DocumentComplete(ASender: TObject;
- const pDisp: IDispatch; var URL: OleVariant);
- begin
- if WebBrowser1.Application = pDisp then
- begin
- Text := '网页下载完毕!';
- end;
- end;
- --------------------------------------------------------------------------------
- //改变背景色或背景图片:
- WebBrowser1.OleObject.document.body.bgcolor := '#FF0000';
- WebBrowser1.OleObject.document.body.background := '...图片地址';
- --------------------------------------------------------------------------------
- //操作有 ID 标签的对象:
- var
- s: string;
- begin
- s := WebBrowser1.OleObject.document.getElementByID('span1').innerText;
- ShowMessage(s); //这是 span1 标签中的内容
- //或者:
- s := WebBrowser1.OleObject.document.parentWindow.span1.innerText;
- ShowMessage(s); //这是 span1 标签中的内容
- //隐藏它:
- WebBrowser1.OleObject.document.parentWindow.span1.style.display := 'none';
- end;
- 假如网页中有这样的内容:
- <span id=span1>这是 span1 标签中的内容</span>
- --------------------------------------------------------------------------------
- //获取网页源代码
- var
- s: string;
- begin
- s := WebBrowser1.OleObject.document.body.innerHTML; //body内的所有代码
- s := WebBrowser1.OleObject.document.body.outerHTML; //body内的所有代码, 包含body标签
- s := WebBrowser1.OleObject.document.documentElement.innerHTML; //html内的所有代码
- end;
- --------------------------------------------------------------------------------
- //WebBrowser 中的右键菜单
- //先要添加ApplicationEvents1,指定其Message事件
- //屏蔽右键菜单
- 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;
- //替换右键菜单
- 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); //得到光标位置
- PopupMenu1.Popup(mPoint.X, mPoint.Y); //弹出popupmenu1的菜单
- Handled:=True;
- end;
- end;
- --------------------------------------------------------------------------------
- //新页面写入
- begin
- WebBrowser1.Navigate('about:blank');
- WebBrowser1.OleObject.Document.Writeln('ok');
- end;
自动登录
- 单个frames的输入
- var
- o : Olevariant;
- begin
- o := WebBrowser.OleObject.document.all.item('LoginUserID',0); //找到登录用户名的输入框
- o.value := 'TEST';
- o := WebBrowser.oleobject.document.all.item('LoginPassword',0); //找到登录密码的输入框
- o.value := 'TEST'
- WebBrowser.oleobject.document.Forms.Item(0, 0).submit; //第一个表单提交
- {
- o :=WebBrowser.oleobject.document.all.item('Login',0); //或者用指定表单名称提交
- o.Click; //点击操作,对其它对象也可同样操作
- }
- end;
- 多个frames的输入,FrameIndex为Frame的序号
- var
- o : Olevariant;
- begin
- //找到登录用户名的输入框
- o := WebBrowser.oleobject.document.documentelement.document.frames.item(FrameIndex).document.all.item('LoginUserID',0);
- o.value := 'TEST';
- //找到登录密码的输入框
- o := WebBrowser.oleobject.document.documentelement.document.frames.item(FramIndex).document.all.item('LoginPassword',0);
- o.value := 'TEST'
- //第一个表单提交
- WebBrowser.oleobject.document.documentelement.document.frames.item(FramIndex).document.Forms.Item(0, 0).submit;
- {
- //或者用指定表单名称提交
- o :=WebBrowser.oleobject.document.documentelement.document.frames.item(FramIndex)..document.all.item('Login',0);
- o.Click; //点击操作,对其它对象也可同样操作
- }
- end;
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