在C#中在相纸上打印图片

using System;
using System.Drawing;
using System.Drawing.Printing;

class Program
{
    static void Main(string[] args)
    {
        // 创建一个PrintDocument对象
        PrintDocument printDoc = new PrintDocument();

        // 设置打印事件处理程序
        printDoc.PrintPage += new PrintPageEventHandler(PrintImage);

        // 调用Print方法开始打印
        printDoc.Print();
    }

    static void PrintImage(object sender, PrintPageEventArgs e)
    {
        // 加载要打印的图片
        Image image = Image.FromFile("path/to/image.jpg");

        // 计算图片的位置和大小
        int x = e.MarginBounds.Left;
        int y = e.MarginBounds.Top;
        int width = e.MarginBounds.Width;
        int height = e.MarginBounds.Height;

        // 调整图片的大小以适应打印区域
        if ((double)image.Width / image.Height > (double)width / height)
        {
            width = height * image.Width / image.Height;
        }
        else
        {
            height = width * image.Height / image.Width;
        }

        // 绘制图片
        e.Graphics.DrawImage(image, x, y, width, height);
    }
}