c#截图功能

简化版：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Drawing;
using System.Windows.Forms;
using System.IO;
using System.Drawing.Imaging;

namespace ConsoleApp346
{
    class Program
    {
        [STAThread]
        static void Main(string[] args)
        {
            ScreenCapture();

        }

        static void ScreenCapture()
        {
            Rectangle bounds = Screen.GetBounds(System.Drawing.Point.Empty);
            using (Bitmap bitmap = new Bitmap(bounds.Width, bounds.Height))
            {
                using (Graphics g = Graphics.FromImage(bitmap))
                {
                    g.CopyFromScreen(System.Drawing.Point.Empty, System.Drawing.Point.Empty, bounds.Size);
                }
                string fullName = Directory.GetCurrentDirectory() + "\" + DateTime.Now.ToString("yyyyMMddHHmmssffff") + ".jpg";
                bitmap.Save(fullName, ImageFormat.Jpeg);
            }
        }
    }
}

效果如图：

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Drawing; using System.Windows.Forms; using System.IO; using System.Drawing.Imaging;

namespace ConsoleApp346 {     class Program     {         [STAThread]         static void Main(string[] args)         {             ScreenCapture();

        }

        static void ScreenCapture()         {             Rectangle bounds = Screen.GetBounds(System.Drawing.Point.Empty);             using (Bitmap bitmap = new Bitmap(bounds.Width, bounds.Height))             {                 using (Graphics g = Graphics.FromImage(bitmap))                 {                     g.CopyFromScreen(System.Drawing.Point.Empty, System.Drawing.Point.Empty, bounds.Size);                 }

                using (SaveFileDialog sfd = new SaveFileDialog())                 {                     sfd.Title = "Save Pictures";                     sfd.InitialDirectory = Directory.GetCurrentDirectory();                     sfd.RestoreDirectory = true;                     sfd.Filter = "bmp files(*.bmp)|*.bmp|All Files(*.*)|*.*";                     sfd.FileName = DateTime.Now.ToString("yyyyMMddHHmmssffff") + ".jpg";                     if (sfd.ShowDialog() == DialogResult.OK)                     {                                                 bitmap.Save(sfd.FileName, ImageFormat.Jpeg);                     }                 }             }         }     } }

效果如下所示：

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Threading.Tasks;
 6 using System.Drawing;
 7 using System.Windows.Forms;
 8 using System.IO;
 9 using System.Drawing.Imaging;
10 
11 namespace ConsoleApp346
12 {
13     class Program
14     {
15         [STAThread]
16         static void Main(string[] args)
17         {
18             ScreenCapture();
19 
20         }
21 
22         static void ScreenCapture()
23         {
24             Rectangle bounds = Screen.GetBounds(System.Drawing.Point.Empty);
25             using (Bitmap bitmap = new Bitmap(bounds.Width, bounds.Height))
26             {
27                 using (Graphics g = Graphics.FromImage(bitmap))
28                 {
29                     g.CopyFromScreen(System.Drawing.Point.Empty, System.Drawing.Point.Empty, bounds.Size);
30                 }
31 
32                 using (SaveFileDialog sfd = new SaveFileDialog())
33                 {
34                     sfd.Title = "Save Pictures";
35                     sfd.InitialDirectory = Directory.GetCurrentDirectory();
36                     sfd.RestoreDirectory = true;
37                     sfd.Filter = "bmp files(*.bmp)|*.bmp|All Files(*.*)|*.*";
38                     sfd.FileName = DateTime.Now.ToString("yyyyMMddHHmmssffff") + ".jpg";
39                     if (sfd.ShowDialog() == DialogResult.OK)
40                     {                         
41                         bitmap.Save(sfd.FileName, ImageFormat.Jpeg);
42                     }
43                 }
44             }
45         }
46     }
47 }