C# 打印机相关配置

在C#中设置打印机纸张大小，如此简单

using System.Drawing.Printing.PrintDocument

using System.Drawing.Printing.PrinterSettings.PaperSizeCollection

using System.Drawing.Printing.PaperSize

using System.Drawing.Printing.PageSettings

/需要以上引用

PrintDocument pd = new PrintDocument();
PaperSize p=null;
foreach(PaperSize ps in pd.PrinterSettings.PaperSizes)
{   if(ps.PaperName.Equals("A3"))
  p = ps;
}
pd.DefaultPageSettings.PaperSize = p;
pd.Print();
           

打印区域设定：

///写在打印printpage 事件里

PrintDocument pd = new PrintDocument();
     pd.PrintPage += (sender, args) =>
     {
           Image i = Image.FromFile("C://tesimage.PNG");
           Point p = new Point(100, 100);
           args.Graphics.DrawImage(i, 10, 10, i.Width, i.Height);
     };
     pd.Print();
           

横打，竖打

PrintDocument.DefaultPageSettings.Landscape = true;//横打
PrintDocument.DefaultPageSettings.Landscape = false;//纵打
           

打印控制类

class PrintDirectClass
    {
        private int printNum = 0;//多页打印
        private Image imageFile = null;//单个图片文件
        private ArrayList fileList = new ArrayList();//多个图片文件

        public void PrintPreview(Image ImageIn)
        {
            imageFile = ImageIn; 

            PrintDocument docToPrint = new PrintDocument();
            docToPrint.BeginPrint += new System.Drawing.Printing.PrintEventHandler(this.docToPrint_BeginPrint);
            docToPrint.EndPrint += new System.Drawing.Printing.PrintEventHandler(this.docToPrint_EndPrint);
            docToPrint.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(this.docToPrint_PrintPage);
            docToPrint.DefaultPageSettings.Landscape = true;//横向打印

            //PrintDialog printDialog = new PrintDialog();
            //printDialog.AllowSomePages = true;
            //printDialog.ShowHelp = true;
            //printDialog.Document = docToPrint;
            //if (printDialog.ShowDialog() == DialogResult.OK)
            //{
                docToPrint.Print();
            //}
        }
        private void docToPrint_BeginPrint(object sender, System.Drawing.Printing.PrintEventArgs e)
        {
            if (fileList.Count == 0)
                fileList.Add(imageFile);
        }
        private void docToPrint_EndPrint(object sender, System.Drawing.Printing.PrintEventArgs e)
        {

        }
        private void docToPrint_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            //图片抗锯齿
            e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;

            //Stream fs = new FileStream(fileList[printNum].ToString().Trim(), FileMode.Open, FileAccess.Read);
            System.Drawing.Image image =(Image)fileList[printNum];
            int x = e.MarginBounds.X;
            int y = e.MarginBounds.Y;
            int width = image.Width;
            int height = image.Height;
            if ((width / e.MarginBounds.Width) > (height / e.MarginBounds.Height))
            {
                width = e.MarginBounds.Width;
                height = image.Height * e.MarginBounds.Width / image.Width;
            }
            else
            {
                height = e.MarginBounds.Height;
                width = image.Width * e.MarginBounds.Height / image.Height;
            }

            //DrawImage参数根据打印机和图片大小自行调整
            System.Drawing.Rectangle destRect = new System.Drawing.Rectangle(x/2, y/2, width-x/2, height-y/2);
            //System.Drawing.Rectangle destRect = new System.Drawing.Rectangle(0, 0, width, height);
            if (image.Height < 310)
            {
                e.Graphics.DrawImage(image, 0, 30, image.Width + 20, image.Height);
                //    System.Drawing.Rectangle destRect1 = new System.Drawing.Rectangle(0, 30, image.Width, image.Height);
                //    e.Graphics.DrawImage(image, destRect1, 0, 0, image.Width, image.Height, System.Drawing.GraphicsUnit.Pixel);
            }
            else
            {
                //e.Graphics.DrawImage(image, 0, 0, image.Width + 20, image.Height);
                //e.Graphics.DrawImage(image, 0, 0, e.MarginBounds.Width, e.MarginBounds.Height);
                e.Graphics.DrawImage(image, destRect);
                //    System.Drawing.Rectangle destRect2 = new System.Drawing.Rectangle(0, 0, image.Width, image.Height);
                //    e.Graphics.DrawImage(image, destRect2, 0, 0, image.Width, image.Height, System.Drawing.GraphicsUnit.Pixel);
            }

            if (printNum < fileList.Count - 1)
            {
                printNum++;
                e.HasMorePages = true;//HasMorePages为true则再次运行PrintPage事件
                return;
            }
            e.HasMorePages = false;
        }
    }