NAME

screen.lua — bootloader screen manipulation module

DESCRIPTION

screen.lua contains functionality for manipulating the screen. This includes functionality such as clearing the screen, moving the cursor, and setting foreground/background colors using sequences provided by color.lua(8).

Before using the functionality provided by screen.lua, it must be included with a statement such as the following:

local screen =
  require("screen")

The following variables are exported from screen.lua:

screen.default_x: The x component of the default cursor position.
screen.default_y: The y component of the default cursor position.

The following functions are exported from screen.lua:

screen.clear(): Clears the screen. screen.clear() will do nothing if a serial boot is detected.
screen.setcursor(x, y): Sets the cursor position to x, y. screen.setcursor() will do nothing if a serial boot is detected.
screen.setforeground(color_value): Sets the foreground color to color_value, which should be a constant defined in color.lua(8). screen.setforeground() will do nothing if color is disabled.
screen.setbackground(color_value): Sets the background color to color_value, which should be a constant defined in color.lua(8). screen.setbackground() will do nothing if color is disabled.
screen.defcolor(): Sets the default color scheme, as defined by color.default(). screen.defcolor() will do nothing if color is disabled.
screen.defcursor(): Sets the default cursor position to that defined by screen.default_x, screen.default_y.

AUTHORS

The screen.lua file was originally written by Pedro Souza <pedrosouza@FreeBSD.org>. Later work and this manual page was done by
Kyle Evans <kevans@FreeBSD.org>.

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AUTHORS