My extension for Internet Explorer don't get BefereNavigate2 event

Question

I created a sidebar for Internet Explorer (IE) following the example shown in

http://code.msdn.microsoft.com/CSIEExplorerBar-ba8fe182/view/Reviews

I implemented the IObjectWithSite interface and I defined SetSite method as follow:

        public void SetSite(object pUnkSite)
        {
            
            // Release previous COM objects.
            if (this.site != null)
            {
                Marshal.ReleaseComObject(this.site);
            }
            if (this.explorer != null)
            {
                Marshal.ReleaseComObject(this.explorer);
                this.explorer = null;
            }
            // pUnkSite is a pointer to object that implements IOleWindowSite. 
            this.site = pUnkSite as NativeMethods.IInputObjectSite;
            if (this.site != null)
            {
                // The site implements IServiceProvider interface and can be used to 
                // get InternetExplorer instance.
                var provider = this.site as NativeMethods._IServiceProvider;
                Guid guid = new Guid("{0002DF05-0000-0000-C000-000000000046}");
                Guid riid = new Guid("{00000000-0000-0000-C000-000000000046}");
                try
                {
                    //allochiamo il nostro browser e diciamo che è IE
                    object webBrowser;
                    provider.QueryService(ref guid, ref riid, out webBrowser);
                    this.explorer = webBrowser as InternetExplorer;
                    try
                    {
                        //agganciamo document complete
                        explorer.DocumentComplete += new DWebBrowserEvents2_DocumentCompleteEventHandler(explorer_DocumentComplete);
                        //agganciamo beforeNavigate
                        explorer.BeforeNavigate2 += new DWebBrowserEvents2_BeforeNavigate2EventHandler(explorer_BeforeNavigate2);
                    }
                    catch (Exception ex)
                    {
                        listBox2.Items.Add(ex.Message);
                    }
                }
                catch (COMException)
                {
                }
            }
        }

I tried, in the code above, to attach DocumentComplete and BeforeNavigate2 events to IE and I noticed that in this way DocuemtnComplete fires and BeforeNavigate2 not.

Where is my fault? Do I successfully attach these two events in that way?

Any help will be appreciated,

Pietro-devel

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Pietro Recchilongo

To be more complete:

I implemented my DocumentComplete with the following signature:

        private void explorer_DocumentComplete(object pdisp, ref object URL)

and BeforeNavigate2 as follows:

        private void explorer_BeforeNavigate2(object pDisp, ref object URL, ref object Flags, ref object TargetFrameName, ref object PostData, ref object Headers, ref bool Cancel)

Pietro-devel

Answer 1

Hello,

I hope this thread can help you
http://social.msdn.microsoft.com/Forums/nl-NL/ieextensiondevelopment/thread/20b16462-63bd-4df4-8f2f-900307252ede

Best regards,
Jesse

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Jesse Jiang [MSFT]
MSDN Community Support | Feedback to us

Answer 2

That solution perfect fits!

I implemented it in this way:

                try
                {
                    //allochiamo il nostro browser e diciamo che è IE
                    object webBrowser;
                    provider.QueryService(ref guid, ref riid, out webBrowser);
                    this.explorer = webBrowser as InternetExplorer;
                   
                    explorer.DocumentComplete += new DWebBrowserEvents2_DocumentCompleteEventHandler(explorer_DocumentComplete);
                    
                    axDocumentV1 = (WebBrowser_V1)this.explorer;
				    axDocumentV1.BeforeNavigate += axDocumentV1_BeforeNavigate;

If I did any mistake, please warn me!

Thank you very much,

Pietro

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Pietro Recchilongo