Fnd_Wnd_OpenWindow

            Fnd_Wnd_OpenWindow (width; height) ➜ Number

              Parameter               Type              Description
              width                   Longint           The width of the new window
              height                  Longint           The height of the new window
              Function result         Number            The new window’s reference number
            This routine will open a new window with the specified width and height. You can use other Window
            component routines to set the window’s type, title, and close box before calling this routine. Unless the
            new window uses a previously saved position (see the Fnd_Wnd_UseSavedPosition method), the
            new window will use the position set by the Fnd_Wnd_Position method).
            If you do not need the new window’s reference number you can safely call this method as a command,
            rather than as a function.
            This method is basically Foundation’s version of the typical CenterWindow method. If no other
            Foundation Windows routines are used, a plain window will be opened in the center of the screen.