gphoto2 3.2.1

High-level wrapper for libgphoto2
Documentation 
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//! Test if the camera can be dropped while there are is still eg. a widget of that camera present

use gphoto2::{Context, Result};

fn main() -> Result<()> {
  env_logger::init();

  let camera = Context::new()?.autodetect_camera().wait()?;

  let widget = camera.config().wait()?;
  let abilities = camera.abilities();

  drop(camera);

  widget.children_count();
  println!("{:?}", abilities);

  Ok(())
}