// Create a Pipeline - this serves as a top-level API for streaming and processing frames
    rs2::pipeline p;
    
    // Configure and start the pipeline
    p.start();
    
    while (true)
    {
        // Block program until frames arrive
        rs2::frameset frames = p.wait_for_frames();
    
        // Try to get a frame of a depth image
        rs2::depth_frame depth = frames.get_depth_frame();
        // Get the depth frame's dimensions
        float width = depth.get_width();
        float height = depth.get_height();
    
        // Query the distance from the camera to the object in the center of the image
        float dist_to_center = depth.get_distance(width / 2, height / 2);
    }