Click a button then a random hotkey and print the hotkey as text on the button

Question

I have a button and I want it so when you click the button the text will change to : Enter your button or mouseclick now. and when the button or mouseclick is pressed/clicked it will print the hotkey to the button.

https://i.ibb.co/fnDPf65/hotkey.png

I hope someone could help me with this i am very new to c#.

    private void Form1_KeyDown(object sender, KeyEventArgs e)
    {
        button17.Text = ((char)e.KeyCode).ToString();
    }

    private void button17_Click(object sender, EventArgs e)
    {
        this.KeyPreview = true;
    }
}