use minifb::{Key, Scale, Window, WindowOptions}; fn main() { let width = 640; let height = 320; let mut buffer = vec![0u32; width * height]; let mut double = Window::new( "Larger", width, height, WindowOptions { scale: Scale::X2, ..WindowOptions::default() }, ) .unwrap(); let mut orig = Window::new( "Smaller", width, height, WindowOptions { ..WindowOptions::default() }, ) .unwrap(); let mut pos = 13; while orig.is_open() && double.is_open() && !orig.is_key_down(Key::Escape) && !double.is_key_down(Key::Escape) { orig.update_with_buffer(&buffer, width, height).unwrap(); double.update_with_buffer(&buffer, width, height).unwrap(); pos += 7; pos *= 13; pos %= buffer.len(); buffer[pos] = 0xff_ff_ff; } }