using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace sharpcapture
{
    public partial class CapturingWindow : Form
    {
        private Rectangle? area = null;

        public Rectangle Area
        {
            set {
                area = value;
                Invalidate();
            }
        }

        public CapturingWindow()
        {
            InitializeComponent();
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            Pen pen = new Pen(Color.Black, 2f);

            if (area.HasValue)
            {
                int x = area.Value.Left;
                int y = area.Value.Top;
                int width = area.Value.Width;
                int height = area.Value.Height;

                Rectangle rectangle = new Rectangle(x, y, width, height);
                e.Graphics.DrawRectangle(pen, rectangle);
            }

            base.OnPaint(e);
        }
    }
}