c#截屏

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using System.Threading;
using System.Windows.Forms;
using System.Drawing;

namespace P_Invoke
{
    class Program
    {

        static void Main(string[] args)
        {
            Bitmap myImage = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);//声明一张图片
            Graphics g = Graphics.FromImage(myImage);//封装一个绘图图面
            g.CopyFromScreen(new Point(0, 0), new Point(0, 0), new Size(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height));//将屏幕信息拷贝入g中
            IntPtr dc1 = g.GetHdc();//获取设备句柄
            g.ReleaseHdc(dc1);//释放句柄
            myImage.Save(@"d:\jietu.jpg");  //保存图片        }
    }
}