How do I draw circles, rectangles, lines and text on a control or form?

Windows Forms FAQs

How do I draw circles, rectangles, lines and text on a control or form?

Handle the Paint event for your control or form.

private void Form1_Paint( object sender, PaintEventArgs e ) 
{ 
  Graphics g = e.Graphics; 
  Pen pen = new Pen( Color.White, 2 ); 
  SolidBrush redBrush = new SolidBrush( Color.Red ); 

  g.DrawEllipse( pen, 100, 150, 100, 100 ); 
  g.DrawString( "Circle", Font, redBrush, 80, 150 ); 
  
  g.FillRectangle( redBrush, 140, 35, 20, 40 ); 
  g.DrawString( "Rectangle", Font, redBrush, 80, 50 ); 
  
  g.DrawLine( pen, 114, 110, 150, 110 ); 
  g.DrawString( "Line", Font, redBrush, 80, 104 ); 
}

Contributed from George Shepherd's Windows Forms FAQ