如何以编程方式从 PrintDocument 打印特定页面？

using System;
using System.Drawing;
using System.Windows.Forms;

namespace PrintDocumentExample
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void printButton_Click(object sender, EventArgs e)
        {
            PrintDocument printDocument = new PrintDocument();
            printDocument.PrintPage += PrintDocument_PrintPage;
            printDocument.Print();
        }

        private void PrintDocument_PrintPage(object sender, PrintPageEventArgs e)
        {
            // 在这里指定要打印的页面内容
            // 例如，打印一个矩形
            RectangleF rectangle = new RectangleF(50, 50, 200, 200);
            e.Graphics.DrawRectangle(Pens.Black, rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
        }
    }
}