delphi 向webbrowser打开的网页中插入js命令
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, OleCtrls, SHDocVw, ExtCtrls,MSHTML;
type
TForm1 = class(TForm)
Panel1: TPanel;
Panel2: TPanel;
Edit1: TEdit;
Button1: TButton;
WebBrowser1: TWebBrowser;
WebBrowser2: TWebBrowser;
Button2: TButton;
Memo1: TMemo;
procedure Button1Click(Sender: TObject);
procedure WebBrowser1NewWindow2(Sender: TObject; var ppDisp: IDispatch;
var Cancel: WordBool);
procedure WebBrowser2BeforeNavigate2(Sender: TObject;
const pDisp: IDispatch; var URL, Flags, TargetFrameName, PostData,
Headers: OleVariant; var Cancel: WordBool);
procedure Button2Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
begin
webbrowser1.Navigate(edit1.Text );
end;
procedure TForm1.WebBrowser1NewWindow2(Sender: TObject;
var ppDisp: IDispatch; var Cancel: WordBool);
begin
ppDisp := WebBrowser2.Application;
end;
procedure TForm1.WebBrowser2BeforeNavigate2(Sender: TObject;
const pDisp: IDispatch; var URL, Flags, TargetFrameName, PostData,
Headers: OleVariant; var Cancel: WordBool);
begin
WebBrowser1.Navigate(string(URL)); // 再指回WebBrowser1
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
(WebBrowser1.Document as IHTMLDocument2).parentWindow.execScript(
memo1.text, 'javascript')
end;
procedure TForm1.FormCreate(Sender: TObje
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procedure TForm1.Button1Click(Sender: TObject);
Var
Num: Integer;
Begin
Try
Num:=StrToInt(Edit1.Text);
Edit2.Text:=IntToStr(Num*Num);
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1.1、激活
var doc,url:Olevariant ;
begin
url:='about:blank' ;//或者一个有实际意义的url
WebBrowser1.Navigate2(url);//这样就激活了！
end;
1.2、写HTML代码
var doc:Olevariant ;
s:string;
begin
doc:=WebBrowser1.Document;
doc.clear;//清楚缘由内容，以便写新内容
doc.write('<html>');
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