private void button9_Click(object sender, System.EventArgs e)
{
// initialize
C1.C1Pdf.C1PdfDocument pdf = new C1.C1Pdf.C1PdfDocument();
RectangleF rc = new RectangleF(0, 0, 200, 180);
pdf.DrawEllipse(Pens.Gray, rc);
pdf.DrawArc(new Pen(Color.Black, 4), rc, 0, 45);
pdf.DrawArc(new Pen(Color.Red, 4), rc, 0, -45);
string fileName = tempdir + "arc.pdf";
pdf.Save(fileName);
System.Diagnostics.Process.Start(fileName);
Bitmap bmp = new Bitmap(pictureBox2.Size.Width, pictureBox2.Size.Height);
using (Graphics g = Graphics.FromImage(bmp))
{
g.PageUnit = GraphicsUnit.Point;
g.DrawEllipse(Pens.Gray, rc);
g.DrawArc(new Pen(Color.Black, 4), rc, 0, 45);
g.DrawArc(new Pen(Color.Red, 4), rc, 0, -45);
}
this.pictureBox2.Image = bmp;
}