获取 window 对象的时机

最新推荐文章于 2012-12-22 11:52:15 发布

转载最新推荐文章于 2012-12-22 11:52:15 发布 · 100 阅读

本文介绍了一个使用 Delphi 实现的示例程序，该程序通过 TWebBrowser 控件加载指定网址并在网页加载完成后触发事件，从而获取浏览器窗口对象。具体实现了 FormCreate 和 WebBrowser1DocumentComplete 两个关键事件。

这是在页面下载完毕后即刻获取:
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unit Unit1;

interface

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

type
TForm1 = class(TForm)
    WebBrowser1: TWebBrowser;
    Button1: TButton;
    Button2: TButton;
    procedure FormCreate(Sender: TObject);
    procedure WebBrowser1DocumentComplete(ASender: TObject;
      const pDisp: IDispatch; var URL: OleVariant);
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

uses MSHTML;
var window: IHTMLWindow2;

{建立时同时打开页面}
procedure TForm1.FormCreate(Sender: TObject);
begin
WebBrowser1.Align := alTop;
WebBrowser1.Navigate('http://del.cnblogs.com');
end;

{当页面打开完毕时获取 window 对象}
procedure TForm1.WebBrowser1DocumentComplete(ASender: TObject;
const pDisp: IDispatch; var URL: OleVariant);
begin
if pDisp = (ASender as TWebBrowser).Application then
begin
window := ((ASender as TWebBrowser).Document as IHTMLDocument2).parentWindow;
end;
end;

end.
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