How to draw a line on a picture box control in a Windows application?

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How to draw a line on a picture box control in a Windows application?

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The steps to draw a line on a picture box control are as follows:

1. Add a picture box control to the Windows form as follows:
   
   private System.Windows.Forms.PictureBox pictureBox1
   
   
2. Write the following code in the Form1_Load event:
   
   pictureBox1.Dock = DockStyle.Fill 'optional
   pictureBox1.BackColor = Color.White 'optional
   pictureBox1.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox1_Paint) this.Controls.Add(pictureBox1)
   
   
3. Write the following code in the pictureBox_Paint Event:
   
   Dim g As Graphics = e.Graphics
   g.DrawString("This is a diagonal line drawn on the control",
   new Font("Arial", 10), System.Drawing.Brushes.Blue, new Point(30, 30))
   g.DrawLine(System.Drawing.Pens.Red, pictureBox1.Left, pictureBox1.Top,
   pictureBox1.Right, pictureBox1.Bottom)
   
   
4. The g.DrawString() method draws the given string on the picture box control and the g.DrawLine() method draws the line on the picture box control.

Note: The DrawLine() method takes the parameters as follows:

g.DrawLine(Pen object, int x1, int y1, int x2, int y2)

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