Since TWebBrowser is inherited methods from TControl, you may think immediately to use the method 'SetFocus' to make it get the focus. Unfortunately, it does not work. So we have to find out some way else to accomplish this task. I have found three ways to make it focused.

1. The first way need to write a function to get it.

　　procedure TForm1.WebBrowserSetFocus; 　　begin 　　　if WebBrowser1.Document nil then 　　　　with WebBrowser1.Application as IOleobject do 　　　　　DoVerb(OLEIVERB_UIACTIVATE, nil, WebBrowser1, 0, Handle, GetClientRect); 　　end;

2. Another easy way to get it.

　　if WebBrowser1.Document nil then 　　　IHTMLWindow2(IHTMLDocument2(WebBrowser1.Document).ParentWindow).focus

3. The best way I found to get it.

　　if WebBrowser1.Document nil then 　　　IHTMLWindow4(WebBrowser1.Document).focus

Ok, when you need to determind if a webbrowser has the focus, use the following code:

　　if IHTMLWindow4(WebBrowser1.Document).hasfocus then