use std::os::windows::io::AsRawHandle;

use winioctl::{ioctl_none, ioctl_read, ioctl_write, DeviceType, Error};

const IOCTL_PRINT_VALUE: u32 = 0x800;
const IOCTL_READ_VALUE: u32 = 0x801;
const IOCTL_WRITE_VALUE: u32 = 0x802;

ioctl_none!(ioctl_print_value, DeviceType::Unknown, IOCTL_PRINT_VALUE);
ioctl_read!(ioctl_read_value, DeviceType::Unknown, IOCTL_READ_VALUE, i32);
ioctl_write!(
  ioctl_write_value,
  DeviceType::Unknown,
  IOCTL_WRITE_VALUE,
  i32
);

fn main() -> Result<(), Error> {
  let file = std::fs::OpenOptions::new()
    .read(true)
    .write(true)
    .create(false)
    .open("\\??\\Example")?;
  let mut value = 0;

  unsafe {
    ioctl_read_value(file.as_raw_handle(), &mut value)?;
  }

  value += 1;

  unsafe {
    ioctl_write_value(file.as_raw_handle(), &value)?;
  }

  unsafe {
    ioctl_print_value(file.as_raw_handle())?;
  }

  Ok(())
}