how to make a hollow in a form

Question

Hi I need to have a hollow (any shape for example a circle) inside a Windows Forms form?

Selva Ganapathy · Answer

Hi Jegan Priya You can use TransparencyKey property to make any shapes or text hollow in a form as per the following code. Use a shape and fill a color and assign the same color to TransparencyKey property of the form. namespace Hollow_Form { public partial class Form1 : Form { public Form1() { InitializeComponent(); this.TransparencyKey = Color.Orange; } protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); e.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel; var text = ?????; //I am using Tamil text here e.Graphics.DrawString(text this.Font Brushes.Orange new PointF(10 10)); e.Graphics.FillEllipse(Brushes.Orange new Rectangle(100 100 100 100)); } } } Output Screen: Regards Selva Ganapathy K

Shweta Lodha · Answer

You can use Grahics API provided by Microsoft. Sample code to generate a circle inside rectangle: System.Drawing.Graphics graphics = this .CreateGraphics(); System.Drawing.Rectangle rectangle = new System.Drawing.Rectangle( 50 50 150 150); graphics.DrawEllipse(System.Drawing.Pens.Black rectangle); graphics.DrawRectangle(System.Drawing.Pens.Red rectangle); You can get more information on: http://msdn.microsoft.com/en-us/library/sfwzeec0(v=vs.90).aspx