using System.Drawing;
using System.Threading;
using System.Windows.Forms;

namespace TestApp
{
    class Program
    {
        static void Main(string[] args)
        {
            var i = 0;
            while (true)
            {
                TakeScreenShot(i);
                i++;
                Thread.Sleep(1000 * 30);
            }
        }

        private static void TakeScreenShot(int i)
        {
            using (var bmp = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height))
            {
                using (Graphics g = Graphics.FromImage(bmp))
                {
                    g.CopyFromScreen(0, 0, 0, 0, Screen.PrimaryScreen.Bounds.Size);
                    bmp.Save($@"C:\Users\furio\OneDrive\podbel\podbel{i}.png");  // saves the image
                }
            }
        }
    }
}