Gets the URL of the resource that is currently displayed.
HRESULT IWebBrowser2::get_LocationURL(BSTR *pbstrLocationURL);
Pointer to a variable of type BSTR that receives the URL. The caller frees this buffer with SysFreeString.
Returns S_OK if successful, or an error value otherwise.
If the resource is a folder or file on the network or local computer, the name is the full path of the folder or file in the Universal Naming Convention (UNC) format.
If this method is called before the first navigation is complete, InternetExplorer returns an empty string and S_FALSE.