CC-Tweaked/doc/events/mouse_scroll.md

module: [kind=event] mouse_scroll

This event is fired when a mouse wheel is scrolled in the terminal.

Return values

1. @{string}: The event name.
2. @{number}: The direction of the scroll. (-1 = up, 1 = down)
3. @{number}: The X-coordinate of the mouse when scrolling.
4. @{number}: The Y-coordinate of the mouse when scrolling.

Example

Prints the direction of each scroll, and the position of the mouse at the time.

while true do
  local event, dir, x, y = os.pullEvent("mouse_scroll")
  print(("The mouse was scrolled in direction %s at %d, %d"):format(dir, x, y))
end