.NET Core全屏截图，C#全屏截图

使用框架：

• WPF
• .NET 8

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Runtime.InteropServices;
using System.IO;namespace WpfAppYolo11_test1.Tool
{/// <summary>/// 屏幕全屏截图/// </summary>public class ScrentCapter{[DllImport("User32.dll", EntryPoint = "GetDC")]private extern static IntPtr GetDC(IntPtr hWnd);[DllImport("gdi32.dll")]public static extern int GetDeviceCaps(IntPtr hdc, int nIndex);const int DESKTOPVERTRES = 117;const int DESKTOPHORZRES = 118;/// <summary>/// 截取电脑全屏图片/// </summary>public static string Screenshot(){// 获取屏幕的尺寸IntPtr hdc = GetDC(IntPtr.Zero);//屏幕宽度int width = GetDeviceCaps(hdc, DESKTOPHORZRES);//屏幕高度int height = GetDeviceCaps(hdc, DESKTOPVERTRES);System.Drawing.Size size = new System.Drawing.Size(){Width = width,Height = height};string filePath = string.Empty;// 创建一个Bitmap对象，用于存储屏幕截图using (Bitmap bitmap = new Bitmap(width, height)){// 创建一个Graphics对象，用于绘制到Bitmap上using (Graphics g = Graphics.FromImage(bitmap)){// 截取屏幕内容到Graphics对象中g.CopyFromScreen(0, 0, 0, 0, size);}// 保存Bitmap为图片文件string dir = Path.Combine(AppContext.BaseDirectory, "screen");if (!Directory.Exists(dir)){Directory.CreateDirectory(dir);}filePath =Path.Combine(dir, $"screen{DateTime.Now.ToString("yyyyMMdd_HHmmssfff")}.png");bitmap.Save(filePath, ImageFormat.Png);}return filePath;}}
}