brightness.md

   1 [<- widgets](https://github.com/copycat-killer/lain/wiki/Widgets)
   2
   3 Shows the current level of screen brightness in a textbox.
   4
   5         mybrightness = lain.widgets.contrib.brightness()
   6
   7 ### input table
   8
   9 Variable | Meaning | Type | Default
  10 --- | --- | --- | ---
  11 `timeout` | Refresh timeout seconds | int | 5
  12 `backlight` | Backlight video | string | "acpi_video0"
  13 `settings` | User settings | function | empty function
  14
  15 `settings` can use the following variables:
  16
  17 Variable | Meaning | Type | Values
  18 --- | --- | --- | ---
  19 `brightness_now` | Brightness level | int | 0-100
  20
  21 ### output table
  22
  23 Variable | Meaning | Type
  24 --- | --- | ---
  25 `widget` | The widget | `wibox.widget.textbox`
  26 `update` | Update `widget` | function
  27
  28 You can control the widget with key bindings like these:
  29
  30     -- Volume control
  31     awful.key({}, "XF86MonBrightnessUp",
  32     function ()
  33         awful.util.spawn("xbacklight -inc 1")
  34         brightnesswidget.update()
  35     end),
  36     awful.key({}, "XF86MonBrightnessDown",
  37     function ()
  38         awful.util.spawn("xbacklight -dec 1")
  39         brightnesswidget.update()
  40     end),