C# transparent background for window form

Question

I\'ve already seen Transparent background on winforms?

it doesnt offer solution to my problem. I am using the same method to try to achieve transparency

Answer 1

public partial class TransprtScrcn : Form
    {
        public TransprtScrcn()
        {
            InitializeComponent();
            this.BackColor = Color.Red;
            this.TransparencyKey = Color.Red;
        }


        protected override void OnPaintBackground(PaintEventArgs e)
        {
            e.Graphics.FillRectangle(Brushes.Red, e.ClipRectangle);
        }
    }
}