What window? The function returns the text. If you choose to display it in a simple MsgBox, that's the limitation you chose. You can instead display it in a Gui with an Edit control or in a Notepad window, either of which would be scrollable and could be updated without activating in case that's important to your use case. Or you could have your script parse the contents and act on it, display certain parts, etc.
The bottom line is this function provides the info. What you do with it is up to you and is not subject to the limitations you are attributing to it.