Question

嗨我想让我的照片框变成圆形然后打印出来。

问题是我可以在表格中看到图片框是圆圈，但是当我预览它以便打印时它不会圈。

这是我的代码

 public Form1()
    {
        InitializeComponent();


        //This makes picturebox1 circle
        System.Drawing.Drawing2D.GraphicsPath gp = new System.Drawing.Drawing2D.GraphicsPath();
        gp.AddEllipse(0, 0, pictureBox1.Width - 4, pictureBox1.Height - 4);
        Region rg = new Region(gp);
        pictureBox1.Region = rg;
    }


    //Preview the print
    private void button1_Click(object sender, EventArgs e)
    {
        printPrev.Document = printDoc;
        printPrev.ShowDialog();

    }

    private void printDoc_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
    {

        //Draw the picturebox on PDF
        e.Graphics.DrawImage(pictureBox1.Image, 230, 230);

    }

由于

Answer 1

它不起作用，因为您没有更改图像。您只是在更改图形。你可以这样做。

            Bitmap bitmap = new Bitmap(pictureBox1.Width, pictureBox1.Height);
            Graphics g = Graphics.FromImage(bitmap);
            g.DrawEllipse(new Pen(new SolidBrush(Color.Black),3),0,0,bitmap.Width -4,bitmap.Height - 4);
            pictureBox1.Image = bitmap;

这也将解决您的问题

    using (var bmp = new Bitmap(pictureBox1.Width, pictureBox1.Height)) {
                pictureBox1.DrawToBitmap(bmp, new Rectangle(0, 0,  bmp.Width,bmp.Height));
                e.Graphics.DrawImage(bmp, 230, 230);
            }

在图片框上绘图并打印出来

1 个答案: