How can I set a form to have a 100% transparent background | How to animate the form. | Make a form's background 100% transparent

                                         Hi friends, in this article I will explain about make a form's background 100% transparent or how can I set a form to have a 100% transparent background or how to animate the form.

Basically we use the windows forms but we know how to change form’s background color, form’s font, forms’ height and form’s width etc.

I already explained some windows forms examples in Windows Form examples and How to draw Text on Mouse Move in VB.NET or C# or Windows Forms | MouseMove Event in VB.NET or C#.

I explain how to make form’s background as transparent in two ways.

1. Using Opacity property

2. Using TransparencyKey property:

1. Using Opacity property:

Take one new project (file---new---project) then one form will be created.

Double click on the form and write the following code.

In VB.NET:

Public Class Form1     Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load         '' Animate Windows Form using vb.net         '' Set Transparency  of Form as 100 %         Me.Opacity = 0         '' Start the Timer 0.1% To change Form Transparency         Timer1.Enabled = True     End Sub     Private Sub Timer1_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles Timer1.Tick         '' increase Transparency  of Form to 1 %         Me.Opacity += 0.01     End Sub End Class

In C#:

using Microsoft.VisualBasic; using System; using System.Collections; using System.Collections.Generic; using System.Data; using System.Diagnostics; Public Class Form1 {                 private void Form1_Load(System.Object sender, System.EventArgs e)                 {                                 //' Animate Windows Form using C#                                 //' Set Transparency  of Form as 100 %                                 this.Opacity = 0;                                 //' Start the Timer 0.1% To change Form Transparency                                 Timer1.Enabled = true;                 }                 private void Timer1_Tick(object sender, System.EventArgs e)                 {                                 //' increase Transparency  of Form to 1 %                                 this.Opacity += 0.01;                 }     Public Form1()                 {                                 Load += Form1_Load;                 } }

And run the form it will like below.

2. Using TransparencyKey property:

Take one new project (file---new---project) then one form will be created.

Double click on the form and write the following code.

In VB.NET:

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load         Me.TransparencyKey = Color.Turquoise         Me.BackColor = Color.Turquoise     End Sub

In C#:

private void Form1_Load(System.Object sender, System.EventArgs e) {                 this.TransparencyKey = Color.Turquoise;                 this.BackColor = Color.Turquoise; }

And run the form it will like below.

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