Struct Writer

pub struct Writer { /* private fields */ }

The writer that handles output to the VGA buffer, including cursor management and text color.

Implementations

impl Writer

pub fn write_byte(&mut self, byte: u8)

Writes a single byte to the screen, advancing the cursor position.

If the byte is a newline (\n), a new line is started. Otherwise, the character is written at the current cursor position.

Arguments

• byte - The byte to write, typically an ASCII character.

pub fn write_string(&mut self, s: &str)

Writes a string to the screen, character by character.

Arguments

• s - The string to write to the screen.

pub fn clear_screen(&mut self)

Clears the entire screen and resets the cursor position to the top-left corner.

pub fn move_cursor_back(&mut self)

Moves the cursor back one character without wrapping.

pub fn update_cursor(&mut self)

Updates the hardware cursor to the current cursor position.

Trait Implementations

impl Write for Writer

fn write_str(&mut self, s: &str) -> Result

Writes a string slice into this writer, returning whether the write succeeded.

fn write_char(&mut self, c: char) -> Result<(), Error>

Writes a [char] into this writer, returning whether the write succeeded.

fn write_fmt(&mut self, args: Arguments<'_>) -> Result<(), Error>

Glue for usage of the [write!] macro with implementors of this trait.