How do you make a form never disappear?

Question

How can I make an invisible form just with the text appearing,without the buttons just a text,never disappear when selected another window? a print:http://prnt.sc/ehlx3i

When I select another window it disappears,?

Obg for the attention.

Answer 1

In the form builder do:

public Form1()
{
    //Deixa o form transparente
    this.TransparencyKey = Color.Turquoise;
    this.BackColor = Color.Turquoise;
    this.FormBorderStyle = FormBorderStyle.None;

    //Faz o form ficar na frente das outras aplicações
    this.TopMost = true;
}

This gives a transparent appearance, with everything, the corners of the forms will be a little strange.

Cannot make the form 100% transparent (no details).