Changing User Agent for webbrowser control

How do I change the user agent for the embedded web browser's process in C++?
Looking for a way to do it so the user agent is set for the entire time (multiple hyperlink clicks).

I know how to do it in VB.NET but starting out with C++ and it's an essential part of my project. Tried looking into UrlMkSetSessionOption but didn't understand it.

My C++ code so far

Code:

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        private: System::Void webBrowser1_DocumentCompleted(System::Object^  sender, System::Windows::Forms::WebBrowserDocumentCompletedEventArgs^  e) {
                               
                                this->webBrowser1->ScriptErrorsSuppressed = true;

                        }

        private: System::Void Form1_Load(System::Object^  sender, System::EventArgs^  e) {
                                this->webBrowser1->Navigate("http://whatsmyuseragent.com");
                        }
        };
}

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How I do it in VB.NET

Code:

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Private Property uag As String <DllImport("urlmon.dll", CharSet:=CharSet.Ansi)> _ Private Shared Function UrlMkSetSessionOption(ByVal dwOption As Integer, ByVal pBuffer As String, ByVal dwBufferLength As Integer, ByVal dwReserved As Integer) As Integer End Function Const URLMON_OPTION_USERAGENT As Integer = &H10000001 Public Function ChangeUserAgent(ByVal Agent As String) UrlMkSetSessionOption(URLMON_OPTION_USERAGENT, Agent, Agent.Length, 0) #End Function

Then

        uag = ("Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:2.2a1pre) Gecko/20110323 Firefox/4.2a1pre")
        ChangeUserAgent(uag

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I'd really appreciate some help, thanks in advance.

Your "C++" code has nothing to do with Visual C++, nor is it a native C++ code.
You'd better ask your question in some of the .Net or in Managed C++/CLI forums