Webbrowser Control how to change a window javascript property?

Question

I need to change the User-Agent of my webbrowser control. But no using the overload of the Navigating method ( because the script get the user agent not from the header, but from the window.navigator.appName property. Is there a way to change this property in the webbrowser??

Thanks!

Answer 1

update: window.navigator should be a property you can overwrite via IDispatchEx (IExpando on the CLR runtime wrapper) in Javascript. something like

var document=webBrowser1.Document.DomDocument as MSHTML.IHTMLDocument2;
var expando =(IExpando)document.parentWindow;
expando.RemoveProperty(expando.GetMember("navigator",BindingFlags.Instance | BindingFlags.Public));
expando.AddProperty("navigator").SetValue(expando,myNavigator);

here myNavigator is a variable of a COM visible type that has an appName property.

not working: pinvoke UrlMkSetSessionOption and pass URLMON_OPTION_USERAGENT as the option flag.