DefaultPageSettings.Margins不增加边距

Question

根据documentation，添加这些代码应该会在打印文档中添加页边距，但是当我在代码中使用它时，我看不到添加了任何页边距。我对代码的使用是否正确？以下是来自MSDN的代码：

 printFont = new Font("Arial", 10);
 PrintDocument pd = new PrintDocument(); 
 pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);
 pd.PrinterSettings.PrinterName = printer;
 Margins margins = new Margins(100,100,100,100);
 pd.DefaultPageSettings.Margins = margins;
 pd.Print();

下面是我的代码：

printDoc = new PrintDocument();
PrinterSettings printSettings = new PrinterSettings();
PaperSize paperSize = new PaperSize("Receipt", 350, 700);

Margins margin = new Margins(2000, 1000, 2000, 1000);
printDoc.DefaultPageSettings.PaperSize = paperSize;

printDoc.PrintPage += new PrintPageEventHandler(pdoc_PrintPage);
PrintPreviewDialog printPreview = new PrintPreviewDialog();
printPreview.Document = printDoc;
DialogResult result = printPreview.ShowDialog();
printDoc.DefaultPageSettings.Margins = margin;
if (result == DialogResult.OK)
{
    printDoc.Print();
}

Answer 1

之所以没有影响文档的页边距，是因为我没有将OriginAtMargins的值更改为true。因此，您需要在PrintDocument()中更改它，如下所示：

New printDoc = new PrintDocument();
printDoc.OriginAtMargins = true; //Default is false