event.isMiddleButtonDown

Overview

Indicates if the mouse's middle button was held down at the time the mouse event occurred.

Gotchas

Android devices older than version 4.0 do not support the middle mouse button. This property will always be set false for those older devices.

Example

-- Called when a mouse event has been received.
local function onMouseEvent( event )
    if event.isMiddleButtonDown then
        -- The mouse's middle button is currently pressed down.
    else
        -- The mouse's middle button is not being pressed.
    end
end
                             
-- Add the mouse event listener.
Runtime:addEventListener( "mouse", onMouseEvent )