Creating a transparent window in Windows Form Application

In this post, we are going to see how to create a transparent Form in Windows Form application. To make a transparent window, we need to change the opacity of the window.

Creating a transparent window in Windows Form Application

In this post, we'll learn how to create a transparent Form in Windows Form application. To make a transparent window, we need to change the opacity of the window.

  • Click on File -> New Project and select Windows Forms Application.
  • Click on the Form and select View Code
  • Type the following code in the constructor.

this.TransparencyKey = (BackColor);

Now your entire code will be

public partial class Form1 : Form
{    
	public Form1()
    {
    	InitializeComponent();
        this.TransparencyKey = (BackColor);
     }
}
  • Build and run your application either by CTRL + F5 or click on Start.  5)You will get a transparent form as shown below.
  • To remove the border and to display a transparent image on the Form, First, add a Picture Box from the ToolBox and add a picture to it from Properties -> Background Image and select a transparent image from your computer.
  • To fit the selected image in the Picture Box, change the BackgroundImageLayout property to Stretch.
  • If you want to remove the border of the Form, go to properties of the form and change FormBorderStyle to None and Run your application.

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