Fnd_Wnd_CloseAllWindows

            Fnd_Wnd_CloseAllWindows ({wait?}) ➜ Boolean

              Parameter                 Type              Description
              wait?                     Boolean           Wait for all windows to close? (optional)
              Function result           Boolean           Did all windows close?

            Call this method to tell all of the other processes to close their windows. If the wait parameter is passed
            and is True, this process will wait until all of the windows have been closed, and then return True. If it
            takes too long for the windows to close, or the user cancels the closing, then False is returned.
            Do not pass True to this routine from a process that is displaying a window that needs to be closed. It
            will not work properly, since it will not be possible to close the window of the current process while this
            method is running.