.NET 4.0图形库-如何捕捉整个屏幕？

using System;
using System.Drawing;

class Program
{
    static void Main(string[] args)
    {
        // 获取所有屏幕
        Screen[] screens = Screen.AllScreens;

        // 计算整个屏幕的大小
        int screenWidth = 0;
        int screenHeight = 0;
        foreach (Screen screen in screens)
        {
            screenWidth += screen.Bounds.Width;
            screenHeight = Math.Max(screenHeight, screen.Bounds.Height);
        }

        // 创建一个与屏幕大小相同的Bitmap对象
        using (Bitmap bitmap = new Bitmap(screenWidth, screenHeight))
        {
            // 创建一个Graphics对象，并将其绑定到Bitmap上
            using (Graphics graphics = Graphics.FromImage(bitmap))
            {
                // 设置Graphics对象的SmoothingMode，可选
                graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;

                // 将整个屏幕的内容复制到Bitmap上
                graphics.CopyFromScreen(0, 0, 0, 0, bitmap.Size);
            }

            // 在这里可以对捕捉到的屏幕截图进行进一步处理，如保存到文件、展示、发送等

            // 示例：保存截图到文件
            string filePath = @"C:\screenshot.png";
            bitmap.Save(filePath, System.Drawing.Imaging.ImageFormat.Png);
        }
    }
}