html - Getting actions from WebBrowser control in C# -

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is possible - example, have form webbrowser control , local html page has elements in it. when user clicks on button in web page, form (for example, close application). there way connect dom actions form events , how?

yes, can use webbrowser.objectforscripting property set object exposed javascript window.external. within javascript can call methods on object. if need first inject javascript page hook stuff in html page didn't write, webbrowser.documentcompleted event, can inject javascript webbrowser.document so:

private void webbrowser_documentcompleted(object sender, webbrowserdocumentcompletedeventargs e) {     try     {         maindoc = webbrowser.document;         if (maindoc != null)         {             htmlelementcollection heads = maindoc.getelementsbytagname("head");             htmlelement scriptel = maindoc.createelement("script");             ihtmlscriptelement el = (ihtmlscriptelement)scriptel.domelement;             el.text = "alert('hello world')";             heads[0].appendchild(scriptel);         }     }     catch (exception ex)     {         debug.writeline(ex.tostring());     } }

edit: neglected mention ihtmlscriptelement comes com , you'll need code somewhere:

[comimport, comvisible(true), guid(@"3050f28b-98b5-11cf-bb82-00aa00bdce0b")] [interfacetypeattribute(cominterfacetype.interfaceisidispatch)] [typelibtype(typelibtypeflags.fdispatchable)] public interface ihtmlscriptelement {     [dispid(1006)]     string text { set; [return: marshalas(unmanagedtype.bstr)] get; } }

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