Check out example codes for "how to draw a dot in c#". It will help you in understanding the concepts better.
Code Example 1
private void Form1_Paint(object sender, PaintEventArgs e)
{
using (Pen p = new Pen(Brushes.Black))
{
p.DashStyle = System.Drawing.Drawing2D.DashStyle.Dot;
e.Graphics.DrawLine(p, 10, 10, 11, 10);
}
}
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