set-scroll-range in canvas%

Sets the current maximum value of a manual scrollbar. (This method has no effect on automatic scrollbars.)

See also init-manual-scrollbars.

• (send a-canvas set-scroll-range which value) -> void
     which : symbol in '(horizontal vertical)
   value : exact integer in [0, 10000]

  The which argument is either 'horizontal or 'vertical, indicating whether to set the maximum value of the horizontal or vertical scrollbar, respectively.