Quick Start

# Launch a command in a virtual terminal and drive it from a REPL.
kou launch bash --cols 80 --rows 24
# > echo hello
# > screen        # prints the current screen text

use kou::{FontCache, FontSet, VttyManager, render_png};

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    let mgr = VttyManager::new();
    let id = mgr.launch("bash", None, 80, 24).await?;
    mgr.send_text(&id, "echo hello\n").await?;

    // Plain text.
    println!("{}", mgr.screenshot(&id).await?);

    // A real PNG, rendered with auto-fetched fonts (Latin + CJK fallback).
    let fonts = FontCache::load(&FontSet::from_env(), 16.0);
    let screen = mgr.screen(&id).await?;
    let png = render_png(&screen, &fonts, 16.0)?;
    std::fs::write("screen.png", png)?;
    Ok(())
}