wheel-step in editor-canvas%

Gets or sets the number of vertical scroll steps taken for one click of the mouse wheel via a 'wheel-up or 'wheel-down key-event%. A #f value disables special handling for wheel events (i.e., wheel events are passed on to the canvas's editor).

• (send an-editor-canvas wheel-step) -> exact integer in [1, 10000] or #f

  Gets the current wheel step.

  
  

• (send an-editor-canvas wheel-step step) -> void
     step : exact integer in [1, 10000] or #f

  Sets the wheel step.