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  • C# 截屏方式

    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Text;
    using System.Windows.Forms;
    using System.Drawing.Imaging;
    
    namespace zhuaScreen
    {
        public partial class Form1 : Form
        {
            public Form1()
            {
                InitializeComponent();
            }
            [System.Runtime.InteropServices.DllImportAttribute("gdi32.dll")]
            private static extern bool BitBlt(
             IntPtr hdcDest,                  //目的DC的句柄 
             int nXDest,                        //目的图形的左上角的x坐标 
             int nYDest,                        //目的图形的左上角的y坐标 
             int nWidth,                         //目的图形的矩形宽度 
             int nHeight,                        //目的图形的矩形高度 
             IntPtr hdcSrc,                    //源DC的句柄 
             int nXSrc,                          //源图形的左上角的x坐标 
             int nYSrc,                           //源图形的左上角的x坐标 
             System.Int32 dwRop          //光栅操作代码 
             ); 
            private void button1_Click(object sender, EventArgs e)
            {
                Graphics g1 = this.CreateGraphics();                                                                                      //获得窗体图形对象 
                Image MyImage = new Bitmap(this.ClientRectangle.Width, this.ClientRectangle.Height, g1);
                Graphics g2 = Graphics.FromImage(MyImage);                                                                      //创建位图图形对象 
                IntPtr dc1 = g1.GetHdc();                                                                                                         //获得窗体的上下文设备 
                IntPtr dc2 = g2.GetHdc();                                                                                                           //获得位图文件的上下文设备 
                BitBlt(dc2, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, dc1, 0, 0, 13369376);//写入到位图 
                g1.ReleaseHdc(dc1);                                                                                                                  //释放窗体的上下文设备 
                g2.ReleaseHdc(dc2);                                                                                                                 //释放位图文件的上下文设备 
                MyImage.Save("Captured.jpg", ImageFormat.Jpeg);                                                                //保存为jpeg文件 
                MessageBox.Show("保存图片在同目录下结束!"); 
            }
        }
    }
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  • 原文地址:https://www.cnblogs.com/flyhigh1860/p/2548605.html
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