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22.2. Connecting a Scrollbar to another widget

Here is a code fragment showing the creation of a canvas with horizontal and vertical scrollbars. In this fragment, self is assumed to be a Frame widget.

    self.canv = tk.Canvas(self, width=600, height=400,
        scrollregion=(0, 0, 1200, 800))
    self.canv.grid(row=0, column=0)

    self.scrollY = tk.Scrollbar(self, orient=tk.VERTICAL,
    self.scrollY.grid(row=0, column=1, sticky=tk.N+tk.S)

    self.scrollX = tk.Scrollbar(self, orient=tk.HORIZONTAL,
    self.scrollX.grid(row=1, column=0, sticky=tk.E+tk.W)

    self.canv['xscrollcommand'] = self.scrollX.set
    self.canv['yscrollcommand'] = self.scrollY.set


  • The connection goes both ways. The canvas's xscrollcommand option has to be connected to the horizontal scrollbar's .set method, and the scrollbar's command option has to be connected to the canvas's .xview method. The vertical scrollbar and canvas must have the same mutual connection.

  • The sticky options on the .grid() method calls for the scrollbars force them to stretch just enough to fit the corresponding dimension of the canvas.