how to exclude control from a WinForm.Opacity in C#

Question

I have a form that i set it\'s Opacity as 50% like this:

this.Opacity = 0.5D; <--this==Form

My problem is that everything that on the fo

Answer 1

Crate a C# project and add 3 forms named

1. MAIN
2. BACKGOUND
3. Child

and add the following code for "MAIN" form load event;

private void MAIN_Load(object sender, EventArgs e)
{
     Child frm1 = new  Child();
     BACKGOUND frm2 = new BACKGOUND();
     frm2 .WindowState = System.Windows.Forms.FormWindowState.Maximized;      

     frm2.Opacity = 0.5;
     frm2.Show();

     frm1.ShowDialog();
     frm2.Close();
}