A PanedWindow is a geometry-manager widget that arranges any number of child panes in a row (when orient is 'horizontal') or a column (when orient is 'vertical'). Each pane holds one widget, and each pair of adjacent panes is separated by a movable sash that the user can drag with the mouse to resize the widgets on either side of it. Inherits from Widget.
Return the current x and y coordinate pair for the sash given by index, which must be an integer between 0 and one less than the number of panes in the panedwindow.