Программа для сохранения скринов

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
using System.Drawing;
using System.Runtime.InteropServices;
 
public class GDI32 {
    public const int SRCCOPY = 13369376;
    [DllImport("gdi32.dll",EntryPoint="DeleteDC")]
    public static extern IntPtr DeleteDC(IntPtr hDc);
    [DllImport("gdi32.dll",EntryPoint="DeleteObject")]
    public static extern IntPtr DeleteObject(IntPtr hDc);
    [DllImport("gdi32.dll",EntryPoint="BitBlt")]
    public static extern bool BitBlt(IntPtr hdcDest, int xDest,
        int yDest, int wDest, int hDest, IntPtr hdcSource,
        int xSrc, int ySrc, int RasterOp);
    [DllImport("gdi32.dll", EntryPoint="CreateCompatibleBitmap")]
    public static extern IntPtr CreateCompatibleBitmap(IntPtr hdc,
        int nWidth, int nHeight);
    [DllImport("gdi32.dll", EntryPoint="CreateCompatibleDC")]
    public static extern IntPtr CreateCompatibleDC(IntPtr hdc);
    [DllImport("gdi32.dll", EntryPoint="SelectObject")]
    public static extern IntPtr SelectObject(IntPtr hdc, IntPtr bmp);
}
public class USER32 {
    public const int SM_CXSCREEN = 0;
    public const int SM_CYSCREEN = 1;
    [DllImport("user32.dll", EntryPoint="GetDesktopWindow")]
    public static extern IntPtr GetDesktopWindow();
    [DllImport("user32.dll", EntryPoint="GetDC")]
    public static extern IntPtr GetDC(IntPtr ptr);
    [DllImport("user32.dll", EntryPoint="GetSystemMetrics")]
    public static extern int GetSystemMetrics(int abc);
    [DllImport("user32.dll", EntryPoint="GetWindowDC")]
    public static extern IntPtr GetWindowDC(IntPtr ptr);
    [DllImport("user32.dll", EntryPoint="ReleaseDC")]
    public static extern IntPtr ReleaseDC(IntPtr hWnd, IntPtr hDc);
}
public class CaptureScreen {
    public  static Bitmap GetDesktopImage() {
        SIZE size;
        IntPtr hBitmap;
 
        IntPtr hDC = USER32.GetDC(USER32.GetDesktopWindow());
 
        IntPtr hMemDC = GDI32.CreateCompatibleDC(hDC);
 
        size.cx = USER32.GetSystemMetrics(USER32.SM_CXSCREEN);
        size.cy = USER32.GetSystemMetrics(USER32.SM_CYSCREEN);
 
        hBitmap = GDI32.CreateCompatibleBitmap(hDC, size.cx, size.cy);
        if (hBitmap != IntPtr.Zero) {
            IntPtr hOld = (IntPtr)GDI32.SelectObject(hMemDC, hBitmap);
 
            GDI32.BitBlt(hMemDC, 0, 0, size.cx, size.cy, hDC,
                0, 0, GDI32.SRCCOPY);
            GDI32.SelectObject(hMemDC, hOld);
            GDI32.DeleteDC(hMemDC);
            USER32.ReleaseDC(USER32.GetDesktopWindow(), hDC);
            Bitmap bmp = Image.FromHbitmap(hBitmap);
            GDI32.DeleteObject(hBitmap);
            GC.Collect();
            return bmp;
        }
        return null;
    }
}
public struct SIZE {
    public int cx;
    public int cy;
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
using System.Drawing;
 
namespace ScreenShoter {
    class Program {
        static void Main(string[] args) {
            Image img = (Image)CaptureScreen.GetDesktopImage();
            img.Save(@"C:\ScreenShot.jpg");
            Console.ReadLine();
        }
    }

                    
using (Bitmap bmpScreenCapture = new Bitmap(Screen.PrimaryScreen.Bounds.Width,
                                            Screen.PrimaryScreen.Bounds.Height))
{
      using (Graphics g = Graphics.FromImage(bmpScreenCapture))
      {
           g.CopyFromScreen(Screen.PrimaryScreen.Bounds.X,
                                     Screen.PrimaryScreen.Bounds.Y,
                                     0, 0,
                                     bmpScreenCapture.Size,
                                     CopyPixelOperation.SourceCopy);
           var cut = new Bitmap(bmpScreenCapture, (int)(bmpScreenCapture.Size.Width * 0.5),(int)(bmpScreenCapture.Size.Height * 0.5));
           cut.Save("myNewScreen.png", ImageFormat.Png);
       }
}