Delphi中始终用WebBrowser打开网页
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![]() | 要在同一个webBrowser里显示,可以这样: 再放一个小的WebBrowser2,设置它在WebBrowser1下面(设置Visible为False好象无效), // 在WebBrowser1的OnNewWindow2事件中: procedure TForm1.WebBrowser1NewWindow2(Sender: TObject; var ppDisp: IDispatch; var Cancel: wordBool); begin ppDisp := WebBrowser2.Application; // 新的窗口先指向WebBrowser2 end; // 在WebBrowser2的OnBeforeNavigate2事件中: 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 Cancel := True; end; 可以这样,窗体中放置两个PANEL,其中PANEL1中放WebBrowser1,PANEL2中放WebBrowser2,PANEL1和PANEL2、WebBrowser1和WebBrowser2的LEFT,TOP等所有属性设为一样。PANEL2的VISIBLE设为FALSE。然后添加代码如下即可: procedure TForm1.WebBrowser1NewWindow2(Sender: TObject; var ppDisp: IDispatch; var Cancel: wordBool); begin ppDisp:=WebBrowser2.Application; panel1.Visible:=false; panel2.Visible:=true; end; procedure TForm1.WebBrowser2NewWindow2(Sender: TObject; var ppDisp: IDispatch; var Cancel: wordBool); begin ppDisp:=WebBrowser1.Application; panel2.Visible:=false; panel1.Visible:=true 我只回答第一个问题,看你给多少分: 1 NewWindow2的在接口中定义的原形: procedure NewWindow2(Sender: TObject; var ppDisp: IDispatch; var Cancel: wordBool); 2 通过传递一个WebBrowser的控制借口给ppDisp可以让新网页在指定的Wb中浏览 ppDisp:=WebBrowser1.Browser.Controlinterface; 3 在刚才传递的WebBrowser的OnBeforeNavigate2事件中就可以获得将要打开的 URL了! function SaveToStream(AStream: TStream): HRESULT; var IpStream: IPersistStreamInit; begin with browser1 do begin while ReadyState <> READYSTATE_COMPLETE do Forms.Application.ProcessMessages; if Assigned(Document) then begin IpStream := Document as IPersistStreamInit; Result := IpStream.save(TStreamAdapter.Create(AStream), TRUE); end else Result := S_FALSE; end; end; function Loadfromstream(AStream:TStream):hresult; begin with browser1 do begin if not Assigned(Document) then begin navigate2(about:blank,0,0,0,0); while readystate <> READYSTATE_COMPLETE do Forms.Application.ProcessMessages; end; AStream.seek(0, 0); Result := (Document as IPersistStreamInit).Load(TStreamadapter.Create(AStream)); end; end; | |
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