`App.resize`.

  `on.resize`.

  together will call `App.textinput` with `A`.

  together will call `on.textinput` with `A`.

    or indirectly within `App.draw`.

    or indirectly within `on.draw`.

    directly or indirectly within `App.mousepressed`.

    directly or indirectly within `on.mouse_press`.

  Call this either directly or indirectly from `App.draw`. It will assign a

  Call this either directly or indirectly from `on.draw`. It will assign a

  Call this either directly or indirectly from `App.mousepressed`. It will

  Call this either directly or indirectly from `on.mouse_press`. It will

  `mouse_button` is pressed. See `App.mousepressed` for `mouse_button` codes.

  `mouse_button` is pressed. See `on.mouse_press` for `mouse_button` codes.