Arranges the windows contained in an MDI frame. (Windows that are contained in an MDI frame are called sheets.) You can arrange the open sheets and the icons of minimized sheets or just the icons.
MDI frame windows
mdiframe.ArrangeSheets ( arrangetype )
Integer. Returns 1 if it succeeds and -1 if an error occurs. If any argument’s value is null, ArrangeSheets returns null.
