Builds and returns the URL to which the user should be re-directed for authorization.
When this method is called, the class will return the URL used for authorization. The class will not make any connections itself, but instead return the URL to you so that you may re-direct the user to this location. This is useful when ClientProfile is set to cfWebServer. Before calling this method set:
This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.