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;
<![CDATA[
假如网页中有这样的语句: &lt;script&gt; var str = &quot;Hello&quot;; i = 99; &lt;/script&gt;
]]>
//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;
<![CDATA[
假如有这样的脚本: &lt;script&gt; function MB(){ alert('HTML-Js'); } &lt;/script&gt;
]]>
//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;
<![CDATA[
假如网页中有这样的内容: &lt;span id=&quot;span1&quot;&gt;这是 span1 标签中的内容&lt;/span&gt;
]]>
//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;
