static void Main(string[] args)
{
Bitmap bitmap = new Bitmap(1024, 768, PixelFormat.Format32bppArgb);
Graphics graphics = Graphics.FromImage(bitmap);
graphics.CopyFromScreen(0, 0, 0, 0, new Size(1024, 768));
bitmap.Save(@"C:Test.jpeg", ImageFormat.Jpeg);
}
{
Bitmap bitmap = new Bitmap(1024, 768, PixelFormat.Format32bppArgb);
Graphics graphics = Graphics.FromImage(bitmap);
graphics.CopyFromScreen(0, 0, 0, 0, new Size(1024, 768));
bitmap.Save(@"C:Test.jpeg", ImageFormat.Jpeg);
}