如何使用C#在PrintDocument中设置自定义纸张大小

using System.Drawing.Printing;

PrintDocument printDocument = new PrintDocument();
printDocument.PrintPage += new PrintPageEventHandler(PrintPageHandler);

private void PrintPageHandler(object sender, PrintPageEventArgs e)
{
    // 设置纸张大小为100x200百分之一英寸
    PaperSize customPaperSize = new PaperSize("CustomPaper", 100, 200);
    
    // 设置打印页面的纸张大小
    e.PageSettings.PaperSize = customPaperSize;
    
    // 在此处添加绘制内容的代码，例如绘制文本、图形等
}

PrintDialog printDialog = new PrintDialog();
printDialog.Document = printDocument;

// 打开打印对话框，并等待用户设置打印参数
if (printDialog.ShowDialog() == DialogResult.OK)
{
    // 开始打印
    printDocument.Print();
}